GB1427968A - Production of silicon nitride bodies - Google Patents
Production of silicon nitride bodiesInfo
- Publication number
- GB1427968A GB1427968A GB2853873A GB2853873A GB1427968A GB 1427968 A GB1427968 A GB 1427968A GB 2853873 A GB2853873 A GB 2853873A GB 2853873 A GB2853873 A GB 2853873A GB 1427968 A GB1427968 A GB 1427968A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silicon nitride
- production
- nitride bodies
- june
- 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.)
- Expired
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
- C04B35/584—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 silicon nitride
- C04B35/591—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 silicon nitride obtained by reaction sintering
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
1427968 Silicon nitride bodies NORTON CO 15 June 1973 [16 June 1972] 28538/73 Heading C1A [Also in Division C7] The invention comprises a shaped isotropic body of Si 3 N 4 having a density greater than 2À4 g./o.c., e.g. up to 2À45 g./c.c., a transverse rupture strength greater than 40,000 p.s.i., e.g. up to 50,000 p.s.i., a pore size of less than 2Á and an α/# Si 3 N 4 ratio of greater than 2, e.g. up to 7À15. The shaped body is prepared by compressing Si powder of particle size less than or equal to 10 Á into a green body having a density of at least 1À4 g./c.c., e.g. up to 1À56 g./c.c., sintering, e.g. at 1100‹ C. in Ar and then nitriding the sintered body, e.g. at 1350- 1450‹ C. in N 2 /NH 3 . The Si powder may have an average diameter of 2 Á and contain Fe, Al or Ca in an amount totalling 1%. The transverse ruptive strength of the sintered body may be greater than 1000 p.s.i.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26357872A | 1972-06-16 | 1972-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1427968A true GB1427968A (en) | 1976-03-10 |
Family
ID=23002361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2853873A Expired GB1427968A (en) | 1972-06-16 | 1973-06-15 | Production of silicon nitride bodies |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5837272B2 (en) |
| CA (1) | CA1010232A (en) |
| DE (1) | DE2330595C2 (en) |
| ES (1) | ES415959A1 (en) |
| FR (1) | FR2189313B1 (en) |
| GB (1) | GB1427968A (en) |
| IT (1) | IT986738B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2931868C2 (en) * | 1979-08-06 | 1982-12-09 | Annawerk Keramische Betriebe GmbH, 8633 Rödental | Grinding vessel and process for its production and process for grinding especially very hard granular material, such as ceramic powders |
| JPS59109304A (en) * | 1982-12-15 | 1984-06-25 | 日本碍子株式会社 | Manufacture of radial type ceramic turbine rotor |
| JP2549636B2 (en) * | 1986-10-17 | 1996-10-30 | 株式会社東芝 | Ceramics rolling elements |
| DE4336311C2 (en) * | 1993-10-25 | 1996-03-14 | Bayer Ag | Process for the production of dense silicon nitride materials |
| US5928601A (en) * | 1994-02-28 | 1999-07-27 | Honda Giken Kogyo Kabushiki Kaisha | Method for producing silicon nitride reaction sintered body |
| EP0669295B1 (en) * | 1994-02-28 | 1998-09-16 | Honda Giken Kogyo Kabushiki Kaisha | Method for producing a silicon nitride reaction - sintered body |
| KR20220007203A (en) | 2020-07-10 | 2022-01-18 | 삼성전자주식회사 | Method of forming semiconductor package |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB970639A (en) * | 1960-03-24 | 1964-09-23 | Plessey Co Ltd | Method of producing high density silicon nitride |
| GB1168499A (en) * | 1967-09-08 | 1969-10-29 | Birmingham Small Arms Co Ltd | Improvements in or relating to the Production of Silicon Nitride Articles |
| GB1092637A (en) * | 1967-11-27 | 1967-11-29 | Lucas Industries Ltd | Silicon nitride products |
| GB1274212A (en) * | 1968-04-03 | 1972-05-17 | Atomic Energy Authority Uk | Production of silicon nitride refractory artefacts |
| GB1312315A (en) * | 1969-04-30 | 1973-04-04 | Tokyo Shibaura Electric Co | Method for manufacturing heat-resistant reinforced composite materials |
| GB1340696A (en) * | 1970-07-10 | 1973-12-12 | Lucas Industries Ltd | Method of manufacturing silicon nitride products |
| GB2134072B (en) * | 1983-01-24 | 1985-10-09 | Coles Cranes Ltd | Booms |
-
1973
- 1973-06-15 ES ES415959A patent/ES415959A1/en not_active Expired
- 1973-06-15 CA CA174,180A patent/CA1010232A/en not_active Expired
- 1973-06-15 FR FR7321837A patent/FR2189313B1/fr not_active Expired
- 1973-06-15 IT IT6878673A patent/IT986738B/en active
- 1973-06-15 DE DE19732330595 patent/DE2330595C2/en not_active Expired
- 1973-06-15 GB GB2853873A patent/GB1427968A/en not_active Expired
- 1973-06-16 JP JP7368211A patent/JPS5837272B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2189313B1 (en) | 1979-04-20 |
| FR2189313A1 (en) | 1974-01-25 |
| IT986738B (en) | 1975-01-30 |
| JPS4952205A (en) | 1974-05-21 |
| DE2330595A1 (en) | 1974-01-03 |
| CA1010232A (en) | 1977-05-17 |
| ES415959A1 (en) | 1976-02-16 |
| DE2330595C2 (en) | 1985-04-25 |
| JPS5837272B2 (en) | 1983-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |