TWI299756B - Oxide-dispersion strengthened platinum material - Google Patents

Description

119. The invention relates to a telluride dispersion-strengthened platinum material which is prepared by dispersing oxides in platinum or k. , w π w t Specially relates to a kind of platinum material which can maintain a long period of strength at a high/current state and is welded. Good dispersion of money, dispersion and strengthening [previously as technology] Oxidation: In the gold or platinum alloy, the oxide dispersion of the metal emulsion is finely dispersed and oxidized. The high-potential strength is good, so use it as me. Lu „Special 疋 device construction material. 纟 is made in the glass used in (4) as the oxide is divided into gold material: powder metallurgy method. In this method, by making platinum and two = oxidation treatment 'And for the wrong powder in the alloy powder, the whole 扒* ^ becomes a white powder that is finely dispersed and oxidized. This is sintered and cured to be used as a platinum material. 0, the applicant of this case is an oxide-dispersed platinum. In addition to the fine dispersion of the particles of the ==, the material is the most::,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, A mixed solution of Bailigu solution and Shixiao acid wrong solution is used as a raw material to produce a platinum powder carrying chlorine oxidization error after the gold is formed, and after forming the white... In the heat treatment and processing, the dispersed particles of 2169-7454-pp 5 1299756 ' are formed by oxidization, and the crystal grain size of the substrate is adjusted (refer to Japanese Laid-Open Patent Publication No. 2002-12926). The dispersion type platinum material improves the high-temperature strength (latent strength) of the white gold material, and has a remarkable effect in this respect. However, at the time of the present inventors, these oxide-dispersed platinum materials are in the strength surface. It is extremely good and obviously has several aspects that should be improved. First, the improvement of the oxide-dispersed platinum material is the stability when used in a high-temperature environment for a long time. It is made of glass using platinum material. In the case of the inventors of the present invention, when the oxide-dispersed platinum material is exposed to such a high temperature for a long period of time, voids (cavities) occur in the material. Or foaming (expansion). The problem of the bubble is particularly high when it occurs in the sheet material. (4) In addition, the oxide-dispersed platinum material needs to be improved even if it is welded, and the glass melting tank is manufactured by welding, but the oxide-dispersed platinum is used. The material is at the joint after welding, and the possibility of occurrence of stomata or the like is relatively high. If the defect is seen, it is related to the breakage of the device, and even if it can be found by inspection Therefore, the object of the present invention is to provide a stable dispersion at a high temperature in an oxide-dispersed platinum material, and it is excellent even in fusion properties. 2169-7454 - PF 6 1299756 [Description of the Invention] The present inventors have inquired about the above problems. As a result, the occurrence of pores at the time of bubble generation and fusion at a high temperature is focused on the oxygen behavior in the material. The oxygen-based element constituting the dispersed particles is an indispensable constituent element for the oxide-dispersed alloy. However, generally, in the oxide-dispersed platinum material, the amount of oxygen in the material exceeds the amount of the dispersed particles by the ruthenium, and the oxygen which is not bonded to the original + or molecular form of the added metal is present in the material 7. It is considered that this is a process which must be handled in a high temperature disturbance in this manufacturing method, and at this time, excessive oxygen may be introduced into the material. Then, the oxygen is not bonded to the atomic or molecular form of the added metal. In the =temperature environment, it diffuses and collects in the material to form gaseous oxygen, which constitutes a gap or a gas/package. Further, when the material is melted at the time of welding, the atomic or molecular oxygen is expanded in volume to become pores, and it is likely to remain in the material. The inventors of the present invention considered the appropriate range of the oxygen concentration in the oxide dispersion type = material as the basis of the above investigation, and the present invention has been conceived. In other words, the present invention is an oxide dispersion-strengthened platinum material in which a dispersed particle composed of a metal oxide of a metal is dispersed in a matrix composed of a platinum or a platinum alloy, and is characterized in that: The oxygen concentration in the metal oxygen-added material is ι 〇〇ρρπι or less. In the present invention, the oxygen concentration (which may be referred to as the excess oxygen concentration) which does not constitute the dispersed particles is 1 QG_ or less because the temperature is high or the material is melted in the presence of more than 600 ppm of oxygen. The formation of gaseous oxygen becomes remarkable, and it is easy to generate bubbles and pores. The

2169-74 54-PF 7 ί299756 The oxygen concentration system is more preferably 50 ppm or less, and the closer it is to 〇ρ(10), the better. Further, the excess oxygen concentration of the oxide-dispersed platinum material which has been commercially sold in the market is 150 ρ ιη or more. Here, the method for calculating the excess oxygen concentration can be obtained by multiplying the oxygen concentration of the platinum material as a whole and the oxygen concentration theoretically determined by the added metal concentration by the oxidation rate of the additive metal described later. Calculated by the difference. The oxygen concentration of the platinum material as a whole can be melted in the carbon crucible, and the oxygen concentration of the platinum gas generated at this time is quantitatively analyzed, or borrowed. The measurement was carried out by analysis of a device such as GD-MS. Further, the excess gas concentration may be calculated by subtracting the oxygen concentration bound to the additive metal from the oxygen concentration of the platinum material as a whole. Here, in combination with the oxygen concentration of the added metal, the platinum material can be gradually heated to (10) by analyzing the oxygen concentration of the entire platinum material as a whole. The degree of oxygen generation at each temperature is detected, and the peak detected near the melting point of platinum differs from the oxygen peak caused by the added metal oxide detected by 250 (the above, and the oxygen peak of the latter) Calculated by quantifying the amount of oxygen. The depth-to-width ratio of crystal grains is, however, the most effective in limiting the oxygen concentration in the platinum material in the present invention, if by the present inventors, it is also effective in specifying dispersed particles. In the state of the particle-dispersion alloy, the reinforcing mechanism of the particle-dispersion alloy is not used because it is a fine particle 4 (volume fraction), and if it is finely dispersed, it is exhibited. In particular, as in the aforementioned Patent Document 1, As mentioned, the strength of the particle-dispersed platinum material and

Raise together, however, the depth-to-width ratio is due to the distance between the two particles of the 2169-7454-PF 8 1299756 scattered particles, and the left-handed, ^, particle-dispersed alloy, ancient \ right. In other words, in order to play the strengthening mechanism in the ground, and to make you feel good, it is preferable to disperse the particles in a uniform and highly dispersed state. The sorrow of the mouth is sorrowful, to disperse the fineness from this point of view. #,日,丨旦,料,分散... It is best to use the average particle size of the platinum granules of the invention in the present invention. 2. 7 (four). The average particle size is 〇·2... to ^ The size of the dispersed particles that can be manufactured, and the reason:: Strengthening 'so' must disperse the fine particles of this degree In the setting of the range of the white rim of the white gold / it is the size of the granules of the granules, the effect of improving the strength is improved by increasing the width of the beads of the earth. On the other hand, the amount (concentration) of the dispersed particles is preferably 〇.〇1 to 〇: 5% by weight. The amount of dispersed particles does not affect the weldability of the alloy. However, the amount of the dispersed particles has a minimum amount of effect for enhancing the strength by particle dispersion. In addition, it affects the workability of the alloy (squeezing plus 14 or ductility, etc.). In the present invention, the concentration of the dispersed particles is 〜·〇1 to 0.5% by weight, and the concentration necessary for exerting the minimum effect of the strength enhancement by particle dispersion is 〇1% by weight. Further, in order not to deteriorate the workability, it is preferable not to exceed the amount of 0.5% by weight. In the state in which the alloy is applied to the base plate or the like, the use of the alloy is not required for the use of the extrusion processability or the ductility, and it is preferable that the concentration of the dispersed particles in the above range is within the range. In addition, it may be 〇·3 wt%, 〇·4 wt%. On the other hand, as in the state of processing to large platinum devices, etc., at 9

2169-7454-PF 1299756 When the use of the alloy is required for the use of the shrinkage processability or the ductility, the concentration of the dispersed particles which makes the workability higher is 7 〇i~〇i4 畺/6, the most It is better to suppress the upper limit even more. Further, in the state in which the dispersed state of the knives and the amount of the scatter particles are in the above range, the added metal in the platinum material does not need to be in the state of the oxide. For example, as described above, the method for producing a particle-dispersed platinum material is to oxidize a platinum alloy powder and oxidize a metal to form a dispersed particle. However, in this state, even if the metal is added at the oxidation _ The oxide can also be finely dispersed by dispersing the necessary amount of dispersed particles. • Therefore, the oxidation rate as the added metal is preferably 50 to 1%. • The oxidation rate is expressed as the ratio of the number of atoms (molar number) of the added metal to the oxide to the number of atoms (molar number) of the added metal in the platinum material. The oxidation rate is 50 to 1%. When the reinforced platinum material is used at a high temperature, so-called internal oxidation is performed by diffusing oxygen in the atmosphere into the platinum material. At this time, the oxygen diffusion preferentially occurs at the crystal grain boundary, and the gold-based genus is diffused to preferentially diffuse the crystal grain boundary of the oxygen to precipitate. Since the material is embrittled when a large amount of added metal is deposited in the crystal grain boundary, the lower limit of the oxidation rate must be suppressed to 5%. Further, the oxidation rate can be calculated by a calculation formula of (the amount of added metal of the oxide) / (the amount of added metal) x100. Here, the amount of the added metal forming the oxide can be obtained by dissolving the platinum material by using aqua regia or a hydrochloric acid monochlorous solution, filtering the residue, weighing the mixture, and measuring the amount of the added metal oxide. In the oxide-dispersed platinum material of the present invention, it is preferable to add a metal system to become a mother, a scorpion or a scorpion. These oxides are stable in the dispersion effect of 2169-7454-PF 10 1299756 and are present in the platinum material, which can enhance the strength of the particles. Further, as the base system, in addition to (pure) platinum, it may be a platinum alloy. As the platinum alloy, it is preferably platinum-bismuth alloy, platinum-gold alloy, platinum-gold alloy, and platinum-bismuth alloy. Next, a method of producing the platinum material of the present invention will be described. The oxide-dispersed platinum material of the present invention basically limits the oxygen concentration in the material, and if the oxygen concentration can be reduced, a conventional production method can be applied. That is, after the internal oxidation treatment is performed on the platinum alloy powder, the internal oxidation conditions are adjusted in the form of solidification to make excess oxygen do not intrude into the material. Further, as in the method described in the patent document, even a method of forming and solidifying a platinum powder carrying a metal hydroxide is carried out, and heat treatment is performed to form dispersed particles, and excess is caused by heat treatment conditions. Oxygen does not intrude into the material. However, even if the conditions of the internal oxidation treatment and the heat treatment are adjusted, it is not easy to clearly determine the state of the condition. Further, the intrinsic oxidation treatment and the heat treatment are required to be carried out at a high temperature. However, since the treatment is carried out in a temperature atmosphere, the growth of the oxide may occur, and the dispersed state of the dispersed particles may be ideal. Therefore, the present inventors have found that the method for producing the oxide-dispersed platinum material of the present invention is preferably formed at a relatively low temperature, and the specific method is in water by a high-energy dispersing mill such as a friction device. A method of adding a metal in 2169-7454-PF 11 1299756 gold by oxidizing water (constituting oxygen of water) by stirring a platinum alloy powder or an alloy wire (which occurs when only a powder is omitted). In this method, the powder fed by the high energy dispersing mill is repeatedly subjected to pulverization, I shrinkage and coagulation by being subjected to the impact of two energies. In this process, when the powder is pulverized, a new surface is exposed. However, it can be said that the new watch becomes active and the position is easily oxidized. Therefore, water is used to oxidize the new surface of the exposed alloy by making the atmosphere of the mixing into water. Next, the oxidation reaction in the high-energy dispersion rolling mill can be carried out even if it is not at a high temperature. Therefore, even at a high temperature, the alloy can be made of oxygen, so that the problem of grain growth is less likely to occur, and the oxides can be made into an ideal dispersed state. • In this manufacturing method, an alloy powder or a sheet metal wire composed of platinum and an additive metal is first produced. The method for producing a niobium alloy powder is preferably an atomization method (gas atomization, water atomization) using a molten alloy of a predetermined composition as a raw material. Since the dissolution atmosphere can be easily adjusted by the atomization method, oxidation of the added metal can be prevented, and at the same time, a suitable powder can be obtained. Next, the alloy powder produced here is preferably one having a particle diameter of 300 / zm or less. ❿Because when a particle size larger than this particle size is used, it takes a considerable amount of time to process by a high-efficiency dispersion rolling mill. Further, in the state in which the alloy wire is used, the melt-transformed alloy ingot is produced by wire drawing and drawing. At this time, in order to be introduced to the apparatus, it can be appropriately cut. Next, after the alloy powder is produced, the alloy powder is introduced into a high-energy ball mill together with water, and stirred to add an added metal to the oxidized alloy powder. The local energy ball mill is used in a container to fill a steel ball or a ceramic ball which is a pulverizing medium and is also equipped with a device for disturbing the fan blade. For example, in addition to the friction device, 2169-7454-PF 12 1299756 is also known as a die reduction rolling mill and a super-bonding rolling mill. . : The material of the energy ball mill must be mixed by high energy. The material is selected by the pollution caused by the constituent materials of the device. The occurrence is Tao Xun, and it is especially preferable to oxidize. Since it is not easy to admire the merging of the constituent materials, it is assumed that the influence of the mixed-in characteristics is also the least. ~ The section of the smashing media is the most: the diameter of the smashing media is the most: ~1〇. Since it is smaller than this, in order to compensate for the pulverizing force and:: Therefore, it is necessary to perform high-speed rotation for disturbing the blade, and it is not easy to separate the powder and pulverize the medium after the oxidation treatment. ^ 'Because the more torque is greater than this, the torque required for the rotation is excessive: large 'and' easily causes damage to the container or the mixing fan blade. ::: Body: The true charge system is best set to 5% of the container capacity to harm J 'but 'as long as it does not excessively exceed this value, it is not easy to cause defects and alloys - lead to high energy ball mill The water system is preferably of high purity, particularly preferably ultrapure water. In the state where oxygen is treated with water containing impurities, the impurities are attached to the powder, and the emulsion-dispersed alloy is produced. However, since the alloy containing impurities is high in use, it becomes a cause of gas generation. 'I am afraid that it will cause the strength to decrease. Next, the water system is preferably filled with an amount of impregnated powder. The contact between the new surface and the water caused by the high energy mixing caused by the friction device is made true. The atmosphere in the container is = air 'but' is preferably an oxygen atmosphere. This is due to the prevention of nitrogen in the air rolling being contained in the material. In addition, in this method, the metal is oxidized by adding 2169-7454-PF 13 1299756 by stirring in a high-energy ball mill, but if the last excess oxygen concentration becomes 100 ppm or less, then it can also be carried out. The oxidation treatment of the alloy powder is heated under an oxidizing atmosphere. This system is used to heat-treat all of the metal in the non-oxidized alloy powder (the oxidation rate is less than 100%) by the oxidation treatment by the high-energy ball mill, and then heat-treating. In addition, the oxidation of the added metal is performed to increase the amount of oxide. However, even if the oxidation treatment by the high-energy ball mill becomes a part, if a necessary amount of the dispersed particles is formed, the strength of the alloy can be ensured, and therefore, the oxidation treatment by heating is not necessarily required. Further, it is feared that the dispersed particles are coarsened due to the oxidizing treatment of the complementary portion. Therefore, in the state of performing the supplementary oxidation treatment, the condition is preferably such that the oxygen pressure is a high pressure of 7 to 9 atm. Heating is carried out at a temperature in the range of 700 to 900 °C. Further, when the high-energy ball milling treatment is performed for a long period of time, the phenomenon of solid solution of oxygen in platinum is exhibited, but at this time, the powder can be subjected to the powder in a pressure-reduced atmosphere at a temperature of 700 to 900X: Heat treatment releases φ excess oxygen. The alloy powder subjected to the oxidation treatment by the above high-energy ball mill can be subjected to a forming and solidification treatment to form a matrix-like alloy. The forming and curing treatment is preferably a method in which, as in hot stamping, pressurization is performed while sintering. The conditions for hot stamping are preferably a temperature of 700 to 1300 C and a stamping pressure of 1 〇jjpa or more. Further, in order to prevent oxidation of the alloy, the atmosphere of hot stamping is preferably a vacuum atmosphere. Further, it is preferable to perform pseudo sintering on the alloy powder in advance before the forming curing treatment. For the alloy after the forming and curing treatment, the density can be increased by forging processing 2169-7454-PF 14 1299756. Further, since the forming process has a predetermined shape, it is possible to carry out the plastic working such as calendering, extrusion, and drawing, and the like, in order to perform the plastic working, the rail processing can be performed. In the state where the calendering is performed, in order to increase the depth-to-width ratio of the structure, the calendering rate of the material becomes important, whereby the density of the oxide-dispersed particles in the direction of the extension and the thickness of the sheet can be changed. That is to say, in the calendering process, the oxide dispersion in the thickness direction of the material is shortened: the distance between the sub-systems is shortened, and on the other hand, it is longer than the rolling direction. Then, the heat treatment after rolling is carried out to easily form a shape having a deep width ratio in which the growth direction of the recrystallized grains is extended in the direction of the rolling direction. Next, the press ratio is preferably 70% or more, and the calendering efficiency is higher and the height-to-depth ratio of the structure is obtained. [Embodiment] Δ In the following, a preferred embodiment of the present invention will be described. In this embodiment, an oxide of cerium dispersed in platinum is produced (oxidized...

Dispersed platinum material. In the embodiment of the invention, platinum is produced by vacuum melting - 〇 5% by weight of zirconium alloy "In the argon atmosphere, gas is atomized into the molten alloy of the alloy" to produce platinum-bismuth alloy powder. The conditions of atomization are spray temperature leakage C and air pressure 4 kPa. The particle size of the alloy powder at this time is 4 () " m. In addition, Fig. 1 shows the SE image of the alloy powder. It is known from Fig. 1 that the alloy powder produced here is a substantially spherical powder. Next, the alloy powder 1500s is introduced into the friction device (size: inner diameter 200 height) 185, material: yttria, oxidized wrong container + oxidation: wrong base 2169-7454-PF 15 1299756 quality non-scale copper search fan blade). At this time, simultaneously introduce the diameter of 5 coffee oxygen 匕 wrong heart and super Pure water was 1 〇 L. Then, the alloy powder was subjected to t-treatment by means of 34 rpm for 11 hours of mixing of the friction stirrer. Fig. 2 shows the alloy after the friction! The shape of the powder. 'The fine alloy is treated by a friction device to repeatedly deform and condense to form an amorphous shape. 2 After the oxidation treatment, the alloy powder is taken out and filled in the mold at 1·5 χ Y Pa In the atmosphere, at 12 〇 (rc, i hour heating, performing false spring 埏, σ. After sintering, the alloy system size is 40mm x 40mm x l35mm, density is 7.42g/cm3, density is 34.6%. Forming and solidifying the alloy after the pseudo sintering by hot stamping. The press temperature is 1200 ° C, and the press pressure is 20 MPa. In addition, the atmosphere is a vacuum atmosphere, so that the press time is 1 hour. As a result, a size of 4 〇 · 34 mm x 40. 45 mm x 60. 53 mm, a density of 16.23 g / cm 3 , a density is obtained. 75.6% of the alloy formed body. Then, in order to further increase the density, the forged body was hot forged at a temperature of 1300 ° C. The alloy size after forging was 65 mm x 65 mm x 18 mm, and the density was about 1 〇〇%. At the end, the alloy is made into a plate thickness of 4 mm by heat treatment, and heat treatment (1250 ° C x 30 min) and annealing is performed, and cold rolling is performed until the thickness is 1. 〇 _, In the case of a platinum-zirconium dispersion alloy produced in the above embodiment, the total amount of oxygen is quantified by an oxygen analyzer in the case of 0·8 mm and 〇·3 mm. By using aqua regia, the platinum material is dissolved, and the residue is filtered and weighed to quantify the amount of zirconia (adding 2169-7454-PF 16 1299756 metal oxide amount). The present embodiment is calculated from these measured values. In the case of the excess oxygen concentration and the oxidation rate of the platinum material, the excess oxygen concentration is Oppm, and the oxidation rate is 50%. Further, the alloy to be produced is impregnated with aqua regia (temperature: 80 ° C) to dissolve platinum. The particle diameter and the dispersion state of the dispersed particles were observed. As a result, it was estimated that the particle size of the oxidized particles of the platinum alloy of the present embodiment was 〇· 02. Then, it was converted by the regular tetrahedron model (at the apex of the regular tetrahedron). When the average particle spacing is calculated by disposing the dispersed particles, it is presumed to be 〇.丨9 # m.

Here, in the first embodiment, after the oxidation treatment is performed on the platinum alloy powder after the rubbing treatment in the oxidizer, the powder is formed and solidified by the same conditions as in the first embodiment to become platinum. material. The oxidation treatment conditions at & are at an oxygen pressure of 9 atm and a temperature of 800 ° C, so that the heating time becomes 丨〇 hours.

In the platinum-niobium dispersion alloy produced in the embodiment, when the oxidation rate and the excess oxygen concentration are calculated in the same manner as in the first embodiment, the excess oxygen concentration is 95 ppm and the oxygen (four) is 1% by weight. Further, in the case of the alloy to be produced, the same as in the first embodiment, when the particle diameter and the gas separation state of the dispersed particles were confirmed, the particle size of the oxidized hammer particles was estimated to be 〇〇2/ζιη, and the average particle distance was 0. 3 4 // m. Here, in the first embodiment, the platinum alloy melt after the vacuum refining is cast as an ingot, and after the wire is 0. 1 Μ diameter for the line, the wire is cut into 3 pieces. Rhyme length. Then, 卩 340 chat, for this 3Q hours. Fig. 3 shows the state of the separation at the time of 2 hours of the rubbing treatment, and the state of the powder after 3 hours. I ΐ 5 χΐ (Γ2ρ: (4) 2169-7454-PF 17 1299756, at 8001, for the treated powder, and then formed and cured by the same heat powder as in the i-th embodiment, As a platinum material, n-like conditions, and in the first embodiment of the white Ϊ phase IT, the oxidation rate of the gold alloy produced by the embodiment and the excess oxygen oxygen ♦ β η ^ morning degree are calculated. Become a surplus of a wide range of agriculture, 60 qing, oxidation rate (10)%. In addition, the alloy of the manufacture,

In the first embodiment, when the a D of the dispersed particles is confirmed, it is estimated that the particle diameter of the zirconia particles is U2 = dispersion state φ, ? M m and the average particle spacing is estimated to be 0.34 / m. Here, a platinum material having a higher excess oxygen concentration than the above-described first state is produced. In the first embodiment, in the ruthenium oxide, the platinum alloy powder after the rubbing treatment is subjected to an oxidation treatment, and then the powder is molded under the same conditions as in the first embodiment to form a platinum material. The oxidation treatment conditions at this time were at an oxygen pressure atm and a temperature of 800 t' so that the heating time was 15 hours. When the oxygen (4) and the excess oxygen concentration of the platinum-zirconium dispersed yt produced by the comparative example were calculated in the same manner as in the first embodiment, the excess oxygen concentration (1) was obtained, and the oxidation rate was 100%. The platinum (4) produced by each of the above embodiments and comparative examples was subjected to a latent breaking test and the presence or absence of occurrence of porosity at the time of welding and the presence or absence of bubbles at the time of heating the material at high temperature were investigated. Latent change The breaking strength was measured at 14 〇〇 < t, 2 〇 MPa using a sheet of 〇 8 mm thickness. Next, the dissolution test was carried out by means of automatic melting, and the surface of the plate having a thickness of 1.0 mm was observed by visual observation of the presence or absence of pores in the molten portion. In addition, the heating test was carried out at 170 (TC heating 0.3 off thickness of 2169-7454-PF 18 1299756 degrees for 3 hours, and then visual observation of the presence or absence of bubbles on the surface. The results of these reviews are shown below. Table 1 Excess oxygen concentration Zr Oxidation rate Latent change Breaking time With or without pores First embodiment Oppm 50% 208hr No second embodiment 95 ppm 100% 352hr No benefit Third embodiment 60 ppm 100% 251hr No comparison Example 115 ppm 100% 364 hr A slight increase from Table 1 is known: the platinum material produced in this embodiment has a breaking time of more than 200 hours. In this respect, the latent strength of platinum is ' It is a breaking load of 1400 ° C for 100 hours, which becomes 1·7 MPa, and it is broken at a load of 20 MPa. In addition, even the now-improved platinum in the market is made at 14 〇〇. The latent breaking time of 20 MPa is about 100 hours. Therefore, it is known that the platinum material of the present embodiment is sufficiently strengthened. Next, the platinum material of the present embodiment is not welded yet. The occurrence of pores and bubbles after heating at a high temperature has a good appearance. On the other hand, in the platinum material of the comparative example, only some pores and bubbles are observed. Figure 5 shows the pores at the time of welding. In the state of occurrence, such pores and bubbles are grown by the use of a high temperature for a long period of time, and become voids, resulting in a decrease in material strength. [Industrial Applicability] As explained above, the oxide dispersion type of the present invention The platinum material is used for long-term use in a high-temperature environment, and does not cause the occurrence of bubbles, etc., which affects the strength of the material. It can be stably used for 2169-7454-PF 19 1299756. In addition, the weldability is also It is good, and it is able to provide a healthy joint with no defects such as pores. [Simplified illustration] Fig. 1 is a platinum-oxidized alloy powder produced by a spray method in the first embodiment. Fig. 2 is an SEM image of the alloy powder after the rubbing treatment of the first embodiment. Fig. 3 is a SEM of the wire φ after the rubbing treatment for 2 hours in the third embodiment. Figure 4 system. Figure 5 is a photo displayed in the status of the pores of the Comparative Example after it dissolves in the SEM image after 30 hours of friction of the third embodiment of the sheet processing line. The main element SIGNS LIST None

2169-7454-PF 20

Claims (1)

The date of repairing ················································································································· Dispersing particles composed of a metal oxide added with a metal, wherein the concentration of oxygen in the material other than the metal to be added is 10,000 ppm or less, and: 2) as stated in the patent scope! The oxide-dispersion-strengthened platinum material of the present invention, wherein the average particle diameter of the dispersed particles is 〇·2 or less, the average particle separation system is 0·G1 to 2·7/zm H, and the dispersed particle concentration system is 〇·〇1 ～0. · 5 wt%. Material 2 The scope of patent application is the first! In the oxide-dispersion-strengthened platinum material of the term, the oxidation rate of the added metal is 5〇~1〇〇%. Material = oxide dispersion-strengthened platinum material of the second application patent range. In the eighth, the oxidation rate of the added metal is 5〇~1〇〇%. 5. If the patent application scope is type 1 platinum Μ ^ emulsification dispersion strengthening, material 枓, in which metal lanthanum, calcium, strontium, strontium are added. 6. If the patent application scope type white gold material Μ "Oxide dispersion strengthening, '4, /, medium, adding metal system 鍅, calcium, strontium, strontium. Type II η! Range of any of the oxides of item 3 Dispersion strengthening, material science, among which, adding metal dysfunction, calcium, strontium, strontium. 8 · For example, the scope of patent application is 4th Ghost Platinum 袓 ^ 化物 分散 分散 化物 化物 ' ' ' ' ' ' ' ' ' ' ' ' ' '钇 钇 钐 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化 强化21 1299756 Gold-one alloy. Alloy, platinum, gold alloy, white 2169-7454-PF 22