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US2047351A - Cathode disintegration - Google Patents

Cathode disintegration Download PDF

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Publication number
US2047351A
US2047351A US751092A US75109234A US2047351A US 2047351 A US2047351 A US 2047351A US 751092 A US751092 A US 751092A US 75109234 A US75109234 A US 75109234A US 2047351 A US2047351 A US 2047351A
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US
United States
Prior art keywords
layer
metal
cathode disintegration
disintegration
cathode
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US751092A
Inventor
Alexander Paul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DISPERSION CATHODIQUE EN ABREG
La Dispersion Cathodique (en Abrege Disca) S A
Original Assignee
DISPERSION CATHODIQUE EN ABREG
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Publication of US2047351A publication Critical patent/US2047351A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02Pretreatment of the material to be coated
    • C23C14/024Deposition of sublayers, e.g. to promote adhesion of the coating
    • C23C14/025Metallic sublayers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12597Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12611Oxide-containing component
    • Y10T428/12618Plural oxides

Definitions

  • the present invention relates to an improved process of cathode disintegration.
  • Metallic layers'obtained by cathode disintegration upon smooth supports such as glass, porcelain, enam'el, e'tc., have in general this drawback that they are not veryv adherent and that they do not withstand electric charges when the layer is inserted in an electric circuit as an electric resistance such as a heating element, etc.
  • the object of the invention is to obtain by cathode disintegration strongly adhering and resisting metal layers.
  • the invention is characterized in that a hard metal of the iron or tungsten groups (periodic system) is first deposited by cathode disintegration upon a suitable support, and afterwards another metal, which would not give by itself a sufficiently adherent and resistant layer, is deposited by cathode disintegration upon the first metal.
  • Hard metals according to the present invention are metals such as Fe, Co, Ni, Mo, W and Cr.
  • the chemical resistance is increased if the'metal deposited in the second place is a metal of the precious metals group; Pd, Pt, Ir, Rh, Au, Ag.
  • the dispersion is eilected upon a support heated at a high temperature (the support being heated either in a direct or in an indirect manner) and preferably with a high voltage current. It has been ascertained that in this manner the combined layer obtained is analogous to an alloy of the two metals which have been deposited.
  • a combined layer nickel-platinum for instance, has all the advantages of a nickel layer and at the same time is much more passive to oxidation.
  • the same remark applies to layers of cobalt and platinum, of molybdenum and platinum. Excellent results are obtained with chromium and platinum or with chromium and iridium.
  • the present invention it is also possible to apply the present invention to the production of heating plates capable of withstanding a surface temperature of from 350 C. to 450 0., without the necessity of protecting themetal layers. Thanks to the present invention, it will be possible in many cases to use plates, instead of wires, as electric resistances. Whilst a layer of platinum would crack if subjected to an electric current of one watt per square centimeter of surface, a combined layer of a hard metal and platinum according to the present invention can withstand charges of ten watts per square centimetre, or more.
  • a suitable support according to the present invention use may be made of a substance having a smooth surface, without pores, capable of withstanding high temperatures without breaking or cracking.
  • substances particularly suitable the following may be cited: enamel metal plates, quartz which has been molten, certain kinds of enamelled porcelain. In certain cases, where the temperature should not be too high, glass may also be used.
  • a layer of nickel of ten millimicrons is first deposited upon a suitable support by cathode disintegration.
  • a layer of platinum of twenty millimicrons is afterwards deposited upon the first, the support being heated between 200 and 300. C., and the voltage used being 2400 volts.
  • the layer thus obtained does not dissolve in sulfuric acid, or in hydrochloric acid, nor in concentrated nitric acid and it does not become oxidized, even at high temperatures. Moreover, the said layer is a better conductor of electricity than a layer consisting of the precious metal alone and having the same thickness.
  • the combined layer can be removed from its support with diflficulty only, and does not crack easily.
  • The'layers obtained according to the present invention will be utilized with advantage in all the cases where it is desired to obtain a layer of high mechanical, electrical and/or chemical resistance;
  • a process of coating objects having hard, smooth, non-metallic surfaces which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the iron and tungsten groups of the periodic system, and then depositing by cathode disintegration upon said first layer a layer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences.
  • a process of coating objects having hard, smooth, non-metallic surfaces which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the iron group of the periodic system, and then depositing by cathode disintegration upon said first layer a layer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences.
  • a process of coating objects having hard, smooth, non-metallic surfaces which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the tungsten group of the periodic system, and then depositing by cathode disintegration upon said first layer alayer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanicalor electrical influences.
  • a process of coating objects having hard, smooth, non-metallic surfaces which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the iron and tungsten groups of the periodic, system, and then depositing by cathode disintegration upon said first layer a layer of a precious metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences.
  • a process of coating objects having hard, smooth, non-metallic surfaces which comprises first heating said surfaces and depositing on such heated surfaces by cathode disintegration a layer of a metal selected from the metals of the iron and tungsten groups of the periodic system, and then depositing by cathode disintegration upon said first layer a layer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermistors And Varistors (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

Patented July 14, 1936 PATENT OFFICE CATHODE DISINTEGRATION Paul Alexander, Brussels, Belgium, minor to La Dispersion Cathodique (en abrg Disca) S. A.,
Brussels, Be l No Drawing. Application November 1, 1934, Serial No. 751,092. In France October 16, 1934 6 Claims.
The present invention relates to an improved process of cathode disintegration.
Metallic layers'obtained by cathode disintegration upon smooth supports such as glass, porcelain, enam'el, e'tc., have in general this drawback that they are not veryv adherent and that they do not withstand electric charges when the layer is inserted in an electric circuit as an electric resistance such as a heating element, etc.
The object of the invention is to obtain by cathode disintegration strongly adhering and resisting metal layers.
The invention is characterized in that a hard metal of the iron or tungsten groups (periodic system) is first deposited by cathode disintegration upon a suitable support, and afterwards another metal, which would not give by itself a sufficiently adherent and resistant layer, is deposited by cathode disintegration upon the first metal. Hard metals according to the present invention are metals such as Fe, Co, Ni, Mo, W and Cr.
It has been found that such a layer is strongly adherent and has a high mechanical and electrical resistance.
It has been found moreover that the chemical resistance is increased if the'metal deposited in the second place is a metal of the precious metals group; Pd, Pt, Ir, Rh, Au, Ag.
Moreover, it is possible to increase the resistance of the layer produced if the dispersion is eilected upon a support heated at a high temperature (the support being heated either in a direct or in an indirect manner) and preferably with a high voltage current. It has been ascertained that in this manner the combined layer obtained is analogous to an alloy of the two metals which have been deposited. A combined layer nickel-platinum for instance, has all the advantages of a nickel layer and at the same time is much more passive to oxidation. The same remark applies to layers of cobalt and platinum, of molybdenum and platinum. Excellent results are obtained with chromium and platinum or with chromium and iridium.
It is also possible to apply the present invention to the production of heating plates capable of withstanding a surface temperature of from 350 C. to 450 0., without the necessity of protecting themetal layers. Thanks to the present invention, it will be possible in many cases to use plates, instead of wires, as electric resistances. Whilst a layer of platinum would crack if subjected to an electric current of one watt per square centimeter of surface, a combined layer of a hard metal and platinum according to the present invention can withstand charges of ten watts per square centimetre, or more.
As a suitable support according to the present invention, use may be made of a substance having a smooth surface, without pores, capable of withstanding high temperatures without breaking or cracking. As substances particularly suitable, the following may be cited: enamel metal plates, quartz which has been molten, certain kinds of enamelled porcelain. In certain cases, where the temperature should not be too high, glass may also be used.
Example of carrying the invention into effect:
A layer of nickel of ten millimicrons is first deposited upon a suitable support by cathode disintegration. A layer of platinum of twenty millimicrons is afterwards deposited upon the first, the support being heated between 200 and 300. C., and the voltage used being 2400 volts.
The layer thus obtained does not dissolve in sulfuric acid, or in hydrochloric acid, nor in concentrated nitric acid and it does not become oxidized, even at high temperatures. Moreover, the said layer is a better conductor of electricity than a layer consisting of the precious metal alone and having the same thickness. The combined layer can be removed from its support with diflficulty only, and does not crack easily.
It was not possible so far to obtain well adhering mirrors, silvered mirrors for instance, by cathode disintegration. Thanks to the present invention it is possible to deposit first a layer of nickel or of molybdenum upon a suitable support, and to deposit afterwards a. layer of silver; a mirror is thus obtained having a strongly adhering layer of silver. i
. The'layers obtained according to the present invention will be utilized with advantage in all the cases where it is desired to obtain a layer of high mechanical, electrical and/or chemical resistance;
I claim:
1. A process of coating objects having hard, smooth, non-metallic surfaces, which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the iron and tungsten groups of the periodic system, and then depositing by cathode disintegration upon said first layer a layer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences. 55
2. A process of coating objects having hard, smooth, non-metallic surfaces, which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the iron group of the periodic system, and then depositing by cathode disintegration upon said first layer a layer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences. 3. A process of coating objects having hard, smooth, non-metallic surfaces, which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the tungsten group of the periodic system, and then depositing by cathode disintegration upon said first layer alayer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanicalor electrical influences.
4. A process of coating objects having hard, smooth, non-metallic surfaces, which comprises first depositing upon such surfaces by cathode disintegration a layer of a metal selected from the metals of the iron and tungsten groups of the periodic, system, and then depositing by cathode disintegration upon said first layer a layer of a precious metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences.
5. A process of coating objects having hard, smooth, non-metallic surfaces, which comprises first heating said surfaces and depositing on such heated surfaces by cathode disintegration a layer of a metal selected from the metals of the iron and tungsten groups of the periodic system, and then depositing by cathode disintegration upon said first layer a layer of a different metal which is strongly adherent to the first metal to form a coating having high resistance to injury by chemical, mechanical or electrical influences.
6. A process of coating objects having hard,
- smooth, non-metallic surfaces, which comprises coating having high resistance to injury by chem- 25 ical, mechanical or electrical influences.
PAUL ALEXANDER.
US751092A 1934-10-16 1934-11-01 Cathode disintegration Expired - Lifetime US2047351A (en)

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Application Number Priority Date Filing Date Title
FR656875X 1934-10-16

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423729A (en) * 1939-02-22 1947-07-08 Ruhle Rudolf Vaporization of substances in a vacuum
US2447836A (en) * 1942-04-02 1948-08-24 Keuffel & Esser Co Precision images and methods of producing them
US2464256A (en) * 1944-02-05 1949-03-15 Donald M Packer Front-surface reflector and method of making same
US2482054A (en) * 1944-06-24 1949-09-13 Libbey Owens Ford Glass Co Mirror structure having a metal to glass adherence increasing interlayer
US2588421A (en) * 1947-12-19 1952-03-11 Metallizing Engineering Co Inc Application of sprayed metal coatings to solid objects
US2588531A (en) * 1948-04-26 1952-03-11 Arthur L Johnson Electric soldering iron
US2702760A (en) * 1951-04-25 1955-02-22 Western Electric Co Method of applying metallic stripes to a web of paper
US2760036A (en) * 1952-09-16 1956-08-21 Robert C Raymer Metallic film potentiometer
US2815302A (en) * 1954-03-12 1957-12-03 Ohio Commw Eng Co Film resistors
US2842463A (en) * 1953-09-04 1958-07-08 Bell Telephone Labor Inc Vapor deposited metal films
US2882377A (en) * 1951-10-24 1959-04-14 Pittsburgh Plate Glass Co Electrical resistor metal coatings on refractory materials
US2885310A (en) * 1954-09-13 1959-05-05 Ohmite Mfg Company Method and apparatus for making film resistors
US2904765A (en) * 1955-10-17 1959-09-15 Jerrold M Seehof Fast response recording hygrometer
US2928061A (en) * 1956-10-18 1960-03-08 Tung Sol Electric Inc Ballast tube
US2962393A (en) * 1953-04-21 1960-11-29 John G Ruckelshaus Method of preparing electrical resistors
US3467584A (en) * 1966-10-24 1969-09-16 Ernest H Lyons Jr Plating platinum metals on chromium
US3690043A (en) * 1968-11-25 1972-09-12 Bodo Futterer Electrofilter for gases

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE883927C (en) * 1938-10-30 1953-07-23 Siemens Ag Quartz crystal for high frequency purposes
DE767381C (en) * 1939-02-23 1952-07-28 Bosch Gmbh Robert Production of metal layers by metal vapor deposition
DE748506C (en) * 1939-07-27 1944-11-04 Work surfaces for valve cones of internal combustion engines and similar metallic machine parts
DE941300C (en) * 1943-05-01 1956-04-05 Siemens Ag Process to achieve greater surface conductivity at contact points of metallic layer resistors
DE975973C (en) * 1943-11-27 1962-12-27 Siemens Ag Vaporized or dusted metal layer largely resistant to corrosion
DE1156289B (en) * 1952-10-31 1963-10-24 Libbey Owens Ford Glass Co Process for the production of transparent and electrically conductive coatings on translucent bodies of an inorganic or organic nature
GB968464A (en) * 1962-01-05 1964-09-02 Bristol Aircraft Ltd Improvements in or relating to deposited electrical circuits
BE639640A (en) * 1962-05-25 1900-01-01
DE1269695B (en) * 1963-06-13 1968-06-06 Western Electric Co Process for the non-electrolytic deposition of a cobalt layer on an insulating substrate
US3504325A (en) * 1967-10-17 1970-03-31 Gen Electric Beta-tungsten resistor films and method of forming
GB2181456B (en) * 1985-10-07 1989-10-25 Gen Electric Depositing metal films on dielectric substrates
JP2602329B2 (en) * 1988-07-06 1997-04-23 インターナショナル・ビジネス・マシーンズ・コーポレーション Method of coating a substrate with a metal layer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423729A (en) * 1939-02-22 1947-07-08 Ruhle Rudolf Vaporization of substances in a vacuum
US2447836A (en) * 1942-04-02 1948-08-24 Keuffel & Esser Co Precision images and methods of producing them
US2464256A (en) * 1944-02-05 1949-03-15 Donald M Packer Front-surface reflector and method of making same
US2482054A (en) * 1944-06-24 1949-09-13 Libbey Owens Ford Glass Co Mirror structure having a metal to glass adherence increasing interlayer
US2588421A (en) * 1947-12-19 1952-03-11 Metallizing Engineering Co Inc Application of sprayed metal coatings to solid objects
US2588531A (en) * 1948-04-26 1952-03-11 Arthur L Johnson Electric soldering iron
US2702760A (en) * 1951-04-25 1955-02-22 Western Electric Co Method of applying metallic stripes to a web of paper
US2882377A (en) * 1951-10-24 1959-04-14 Pittsburgh Plate Glass Co Electrical resistor metal coatings on refractory materials
US2760036A (en) * 1952-09-16 1956-08-21 Robert C Raymer Metallic film potentiometer
US2962393A (en) * 1953-04-21 1960-11-29 John G Ruckelshaus Method of preparing electrical resistors
US2842463A (en) * 1953-09-04 1958-07-08 Bell Telephone Labor Inc Vapor deposited metal films
US2815302A (en) * 1954-03-12 1957-12-03 Ohio Commw Eng Co Film resistors
US2885310A (en) * 1954-09-13 1959-05-05 Ohmite Mfg Company Method and apparatus for making film resistors
US2904765A (en) * 1955-10-17 1959-09-15 Jerrold M Seehof Fast response recording hygrometer
US2928061A (en) * 1956-10-18 1960-03-08 Tung Sol Electric Inc Ballast tube
US3467584A (en) * 1966-10-24 1969-09-16 Ernest H Lyons Jr Plating platinum metals on chromium
US3690043A (en) * 1968-11-25 1972-09-12 Bodo Futterer Electrofilter for gases

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Publication number Publication date
DE656875C (en) 1938-02-16
FR793015A (en) 1936-01-15

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