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WO2008146562A1 - Process for producing light-transmitting ceramic - Google Patents

Process for producing light-transmitting ceramic Download PDF

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Publication number
WO2008146562A1
WO2008146562A1 PCT/JP2008/058082 JP2008058082W WO2008146562A1 WO 2008146562 A1 WO2008146562 A1 WO 2008146562A1 JP 2008058082 W JP2008058082 W JP 2008058082W WO 2008146562 A1 WO2008146562 A1 WO 2008146562A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic
transmitting
light
template particles
ceramic powder
Prior art date
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.)
Ceased
Application number
PCT/JP2008/058082
Other languages
French (fr)
Japanese (ja)
Inventor
Teppei Kubota
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP2009516225A priority Critical patent/JPWO2008146562A1/en
Publication of WO2008146562A1 publication Critical patent/WO2008146562A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
    • C—CHEMISTRY; METALLURGY
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62685—Treating the starting powders individually or as mixtures characterised by the order of addition of constituents or additives
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
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    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3293—Tin oxides, stannates or oxide forming salts thereof, e.g. indium tin oxide [ITO]
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/602—Making the green bodies or pre-forms by moulding
    • C04B2235/6025—Tape casting, e.g. with a doctor blade
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/76—Crystal structural characteristics, e.g. symmetry
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/78—Grain sizes and shapes, product microstructures, e.g. acicular grains, equiaxed grains, platelet-structures
    • C04B2235/787—Oriented grains
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9646—Optical properties
    • C04B2235/9653—Translucent or transparent ceramics other than alumina

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

Anisotropic template particles of a tungsten bronze structure containing niobium, strontium, barium, etc. are produced by the flux method in a first step. In a second step, a ceramic powder of a tungsten bronze structure containing niobium, strontium, barium, etc. is produced by the solid-phase method. In a third step, the template particles are mixed with the ceramic powder in a given proportion, and the mixture is formed into a molding by the doctor blade method. In a fourth step, the molding is burned to sinter the ceramic powder using the template particles as starting points to thereby produce an oriented ceramic sinter. Thus, a light-transmitting ceramic of an (Sr,Ba)NbvOww structure is obtained in which part of the niobium has been replaced with zinc and/or magnesium in a molar ratio of 0.004 or higher. The process can inexpensively yield a light-transmitting (Sr,Ba)Nb2O6 ceramic having high light-transmitting properties and stable and satisfactory optical properties.
PCT/JP2008/058082 2007-05-28 2008-04-25 Process for producing light-transmitting ceramic Ceased WO2008146562A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009516225A JPWO2008146562A1 (en) 2007-05-28 2008-04-25 Method for producing translucent ceramic

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-140971 2007-05-28
JP2007140971 2007-05-28

Publications (1)

Publication Number Publication Date
WO2008146562A1 true WO2008146562A1 (en) 2008-12-04

Family

ID=40074832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/058082 Ceased WO2008146562A1 (en) 2007-05-28 2008-04-25 Process for producing light-transmitting ceramic

Country Status (2)

Country Link
JP (1) JPWO2008146562A1 (en)
WO (1) WO2008146562A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013211540A (en) * 2012-02-28 2013-10-10 Univ Of Yamanashi Thermo-electric material and process of manufacturing the same
CN111699419A (en) * 2018-02-19 2020-09-22 日本碍子株式会社 Optical member and lighting device
CN118993730A (en) * 2024-08-08 2024-11-22 延安大学 Photochromic ceramic and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CIHANGIR DURAN ET AL.: "Fabrication and Electrical Properties of Textured Sr0.53Ba0.47Nb2O6 Cearamics by templated Grain Growth", JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 83, no. 9, September 2000 (2000-09-01), pages 2203 - 2213 *
VANDAMME N.S. ET AL.: "Fabrication fo Optically Transparent and Electrooptic Strontium Barium Niobate Ceramics", JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 74, no. 8, August 1991 (1991-08-01), pages 1785 - 1792 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013211540A (en) * 2012-02-28 2013-10-10 Univ Of Yamanashi Thermo-electric material and process of manufacturing the same
JP2017126759A (en) * 2012-02-28 2017-07-20 国立大学法人山梨大学 Thermoelectric material manufacturing method and thermoelectric element
CN111699419A (en) * 2018-02-19 2020-09-22 日本碍子株式会社 Optical member and lighting device
CN111699419B (en) * 2018-02-19 2022-09-09 日本碍子株式会社 Optical components and lighting devices
CN118993730A (en) * 2024-08-08 2024-11-22 延安大学 Photochromic ceramic and preparation method thereof

Also Published As

Publication number Publication date
JPWO2008146562A1 (en) 2010-08-19

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