FR2389584A1 - - Google Patents
Info
- Publication number
- FR2389584A1 FR2389584A1 FR7812849A FR7812849A FR2389584A1 FR 2389584 A1 FR2389584 A1 FR 2389584A1 FR 7812849 A FR7812849 A FR 7812849A FR 7812849 A FR7812849 A FR 7812849A FR 2389584 A1 FR2389584 A1 FR 2389584A1
- Authority
- FR
- France
- Prior art keywords
- powder
- sintering
- enclosed
- blank
- group ivb
- 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.)
- Withdrawn
Links
Classifications
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- 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
- C04B35/5805—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 borides
- C04B35/58064—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 borides based on refractory borides
-
- 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
- C04B35/5805—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 borides
- C04B35/58064—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 borides based on refractory borides
- C04B35/58071—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 borides based on refractory borides based on titanium borides
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- 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
- C04B35/5805—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 borides
- C04B35/58064—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 borides based on refractory borides
- C04B35/58078—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 borides based on refractory borides based on zirconium or hafnium borides
-
- 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
- C04B35/626—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
- C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Ceramic Products (AREA)
Abstract
Procédé de fabrication d'articles en diborures de métaux du Groupe IVb, par pressage à froid et frittage de la poudre. La poudre de diborures de métaux du Groupe IVb est pressée dans un moule substantiellement en-dessous des températures de frittage, afin de former une ébauche pressée à froid, ayant un tassement pratiquement uniforme sur ses surfaces principales. La pièce est enfermée, mais pas resserrée, dans un réceptacle thermiquement conducteur qui a été préchauffé pour chasser les impuretés volatiles, et la pièce enfermée est frittée sans application simultanée de pression. La poudre et l'ébauche sont maintenues sous atmosphère inerte avant et pendant le frittage. Application notamment à la production de pièces plates, où le gauchissement pendant le frittage peut causer un problème.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79264077A | 1977-05-02 | 1977-05-02 | |
US05/894,972 US4275025A (en) | 1977-05-02 | 1978-04-10 | Refractory metal diboride articles by cold pressing and sintering |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2389584A1 true FR2389584A1 (fr) | 1978-12-01 |
Family
ID=27121313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7812849A Withdrawn FR2389584A1 (fr) | 1977-05-02 | 1978-04-28 |
Country Status (7)
Country | Link |
---|---|
US (1) | US4275025A (fr) |
JP (1) | JPS53146710A (fr) |
CA (1) | CA1116379A (fr) |
DE (1) | DE2818418A1 (fr) |
FR (1) | FR2389584A1 (fr) |
GB (1) | GB1604901A (fr) |
NO (1) | NO781522L (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468564A1 (fr) * | 1979-11-02 | 1981-05-08 | Ppg Industries Inc | Procede de fabrication de produits faconnes en diborure de titane |
WO1986006366A1 (fr) * | 1985-04-26 | 1986-11-06 | Martin Marietta Corporation | Composities d'aluminium-ceramique |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353885A (en) * | 1979-02-12 | 1982-10-12 | Ppg Industries, Inc. | Titanium diboride article and method for preparing same |
EP0085093A4 (fr) * | 1981-07-27 | 1984-04-27 | Great Lakes Carbon Corp | Metaux refractaires durs frittes. |
US4526669A (en) * | 1982-06-03 | 1985-07-02 | Great Lakes Carbon Corporation | Cathodic component for aluminum reduction cell |
US4983340A (en) * | 1989-12-28 | 1991-01-08 | Union Carbide Coatings Service Technology Corporation | Method for forming a high density metal boride composite |
DE4436274A1 (de) * | 1994-10-11 | 1996-04-18 | Schlafhorst & Co W | Serviceeinrichtung für eine Kreuzspulen herstellende Textilmaschine |
US6417126B1 (en) * | 2000-02-24 | 2002-07-09 | C-Max Technology, Inc. | Ceramics and process for producing |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1445043A (fr) * | 1965-07-28 | 1966-07-08 | Atomic Energy Authority Uk | Procédé de frittage |
FR2324590A1 (fr) * | 1975-02-03 | 1977-04-15 | Ppg Industries Inc | Poudre sous-micronique de borure de metal refractaire et procede pour sa preparation |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3202600A (en) * | 1951-05-04 | 1965-08-24 | British Aluminium Co Ltd | Current conducting element for aluminum reduction cells |
US2982533A (en) * | 1957-01-08 | 1961-05-02 | Metallgesellschaft Ag | Sintering process and apparatus |
US3011927A (en) * | 1958-12-11 | 1961-12-05 | Phillips Petroleum Co | Nitrided metals |
US3003885A (en) * | 1960-02-01 | 1961-10-10 | Union Carbide Corp | Titanium diboride article |
US3215545A (en) * | 1962-12-26 | 1965-11-02 | Union Carbide Corp | Titanium diboride articles and method for making same |
GB1010492A (en) * | 1963-02-15 | 1965-11-17 | United States Borax Chem | Improvements in or relating to the production of titanium diboride bodies |
US3411959A (en) * | 1966-03-21 | 1968-11-19 | Westinghouse Electric Corp | Method for producing tantalum carbide and tantalum-alloy carbide filaments |
US3472709A (en) * | 1966-03-25 | 1969-10-14 | Nasa | Method of producing refractory composites containing tantalum carbide,hafnium carbide,and hafnium boride |
US3467745A (en) * | 1966-03-29 | 1969-09-16 | Carborundum Co | Method of forming hot pressed refractory carbide bodies having shaped cavities |
US3586303A (en) * | 1969-05-19 | 1971-06-22 | Westinghouse Electric Corp | Carbon mold for manufacture of tantalum carbide filaments |
US3589694A (en) * | 1969-08-19 | 1971-06-29 | Philips Corp | Supporting plate for objects to be subjected to a thermal treatment |
US3979500A (en) * | 1973-05-02 | 1976-09-07 | Ppg Industries, Inc. | Preparation of finely-divided refractory powders of groups III-V metal borides, carbides, nitrides, silicides and sulfides |
US3831297A (en) * | 1973-06-27 | 1974-08-27 | Caterpillar Tractor Co | Replaceable cutting edge assembly with wedge means |
US4097567A (en) * | 1976-08-25 | 1978-06-27 | Aluminum Company Of America | Titanium diboride shapes |
-
1978
- 1978-04-10 US US05/894,972 patent/US4275025A/en not_active Expired - Lifetime
- 1978-04-20 CA CA000301560A patent/CA1116379A/fr not_active Expired
- 1978-04-27 DE DE19782818418 patent/DE2818418A1/de not_active Withdrawn
- 1978-04-28 JP JP5214578A patent/JPS53146710A/ja active Pending
- 1978-04-28 FR FR7812849A patent/FR2389584A1/fr not_active Withdrawn
- 1978-04-28 NO NO781522A patent/NO781522L/no unknown
- 1978-05-02 GB GB1718578A patent/GB1604901A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1445043A (fr) * | 1965-07-28 | 1966-07-08 | Atomic Energy Authority Uk | Procédé de frittage |
FR2324590A1 (fr) * | 1975-02-03 | 1977-04-15 | Ppg Industries Inc | Poudre sous-micronique de borure de metal refractaire et procede pour sa preparation |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468564A1 (fr) * | 1979-11-02 | 1981-05-08 | Ppg Industries Inc | Procede de fabrication de produits faconnes en diborure de titane |
WO1986006366A1 (fr) * | 1985-04-26 | 1986-11-06 | Martin Marietta Corporation | Composities d'aluminium-ceramique |
Also Published As
Publication number | Publication date |
---|---|
GB1604901A (en) | 1981-12-16 |
CA1116379A (fr) | 1982-01-19 |
JPS53146710A (en) | 1978-12-20 |
NO781522L (no) | 1978-11-03 |
DE2818418A1 (de) | 1978-11-09 |
US4275025A (en) | 1981-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
AR | Application made for restoration | ||
DI | Inadmissibility of an action of restoration | ||
AR | Application made for restoration | ||
DI | Inadmissibility of an action of restoration |