GB1277281A - Improvements relating to the production of large surface area hard solids - Google Patents

Improvements relating to the production of large surface area hard solids

Info

Publication number
GB1277281A
GB1277281A GB40457/69A GB4045769A GB1277281A GB 1277281 A GB1277281 A GB 1277281A GB 40457/69 A GB40457/69 A GB 40457/69A GB 4045769 A GB4045769 A GB 4045769A GB 1277281 A GB1277281 A GB 1277281A
Authority
GB
United Kingdom
Prior art keywords
surface area
production
large surface
improvements relating
nbsi
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.)
Expired
Application number
GB40457/69A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1277281A publication Critical patent/GB1277281A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • C04B35/58085—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicides
    • C04B35/58092—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicides based on refractory metal silicides
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/111—Fine ceramics
    • C04B35/117—Composites
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/05—Mixtures of metal powder with non-metallic powder
    • C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Inert Electrodes (AREA)
  • Silicon Compounds (AREA)

Abstract

1277281 Metal silicides ROBERT BOSCH GmbH 13 Aug 1969 [14 Aug 1968] 40457/69 Heading C1A [Also in Divisions C7 and H1] In Example 1, W(Si x Al y ) 2 in the form of a powder with a specific surface area of 50 m.<SP>2</SP>/g. is formed by heating a mixture of WSi 2 and Al at 1600‹ C. in an inert atmosphere and boiling the product with HCl to remove excess Al. In Example 2, NbSi x Cu y of surface area 8 m.<SP>2</SP>/g. is similarly prepared from NbSi 2 and Cu at 1800‹ C. using H 2 SO 4 to remove excess Cu. NbSi x Ag y is also referred to. The values of x and y are not specified.
GB40457/69A 1968-08-14 1969-08-13 Improvements relating to the production of large surface area hard solids Expired GB1277281A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681771996 DE1771996B2 (en) 1968-08-14 1968-08-14 PROCESS FOR PRODUCING HARD SURFACE MATERIALS AND THEIR USE

Publications (1)

Publication Number Publication Date
GB1277281A true GB1277281A (en) 1972-06-07

Family

ID=5701067

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40457/69A Expired GB1277281A (en) 1968-08-14 1969-08-13 Improvements relating to the production of large surface area hard solids

Country Status (6)

Country Link
BE (1) BE737458A (en)
CH (1) CH529079A (en)
DE (1) DE1771996B2 (en)
FR (1) FR2015619A1 (en)
GB (1) GB1277281A (en)
SE (1) SE351417B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176807A (en) * 1985-06-19 1987-01-07 Asahi Glass Co Ltd Zrb2-containing sintered cermet
GB2278010A (en) * 1993-05-11 1994-11-16 Agency Ind Science Techn A solid oxide fuel cell and a carbon direct-oxidizing-type electrode for the fuel cell
US6183896B1 (en) 1993-05-11 2001-02-06 Agency Of Industrial Science And Technology Solid oxide fuel cell and a carbon direct-oxidizing-type electrode for the fuel cell

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2456238C2 (en) * 1974-11-28 1982-08-12 Goetze Ag, 5093 Burscheid Use of a powder mixture as a spray powder for the production of layers with high wear and scorch resistance
FR2447977A1 (en) * 1979-02-01 1980-08-29 Kennametal Inc Titanium di:boride and niobium nitride mixed with binder metal - then pressed into compacts subjected to two sintering operations to mfr. very hard tools etc.
FR2503926B1 (en) * 1981-04-10 1988-05-06 Sumitomo Electric Industries ELECTRIC CONTACT MATERIALS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176807A (en) * 1985-06-19 1987-01-07 Asahi Glass Co Ltd Zrb2-containing sintered cermet
US4671822A (en) * 1985-06-19 1987-06-09 Asahi Glass Company, Ltd. ZrB2 -containing sintered cermet
GB2176807B (en) * 1985-06-19 1989-12-28 Asahi Glass Co Ltd Zrb2-containing sintered cermet
GB2278010A (en) * 1993-05-11 1994-11-16 Agency Ind Science Techn A solid oxide fuel cell and a carbon direct-oxidizing-type electrode for the fuel cell
GB2278010B (en) * 1993-05-11 1996-10-30 Agency Ind Science Techn A solid oxide fuel cell and a carbon direct-oxidizing-type electrode for the fuel cell
US6183896B1 (en) 1993-05-11 2001-02-06 Agency Of Industrial Science And Technology Solid oxide fuel cell and a carbon direct-oxidizing-type electrode for the fuel cell

Also Published As

Publication number Publication date
SE351417B (en) 1972-11-27
DE1771996B2 (en) 1976-04-01
DE1771996A1 (en) 1972-02-10
FR2015619A1 (en) 1970-04-30
BE737458A (en) 1970-01-16
CH529079A (en) 1972-10-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees