GB1266506A - - Google Patents
Info
- Publication number
- GB1266506A GB1266506A GB1266506DA GB1266506A GB 1266506 A GB1266506 A GB 1266506A GB 1266506D A GB1266506D A GB 1266506DA GB 1266506 A GB1266506 A GB 1266506A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- forming
- article
- silicon powder
- binder
- 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
1,266,506. Moulding silicon bodies. NATIONAL RESEARCH DEVELOPMENT CORP. 15 Oct., 1969 [1 Oct., 1968], No. 46625/68. Heading B5A. [Also in Division C1] A compacted silicon powder article is made by forming a dough-like material from silicon powder and a binder containing a thermoplastic resin and a solvent, evaporating a portion of the solvent thereby forming a semi-dried cake, consolidating the semi-dried cake by repeated hot milling thereof, forming the consolidated mixture into the desired shape and removing the remaining solvent from the formed article by heating. Preferably the binder comprises a solution of poly(butyl methacrylate) in trichloroethylene, the initial solvent removal takes place at room temperature and the remainder is removed at 130‹ C. after hot milling at 45-50‹ C. The proportions of silicon powder and binder are preferably 65% to 35% by weight. The article may then be converted to silicon nitride by heating in nitrogen, initially at 1000‹ C. and then at higher temperatures to complete the conversion.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4662568 | 1968-10-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1266506A true GB1266506A (en) | 1972-03-08 |
Family
ID=10441977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1266506D Expired GB1266506A (en) | 1968-10-01 | 1968-10-01 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH535183A (en) |
| DE (1) | DE1949587C3 (en) |
| FR (1) | FR2019571A1 (en) |
| GB (1) | GB1266506A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE372003B (en) * | 1970-03-17 | 1974-12-09 | Lucas Industries Ltd | |
| US4087500A (en) * | 1973-12-20 | 1978-05-02 | Ford Motor Company | Method of making a duo density silicon nitride article |
| US4388255A (en) * | 1981-03-27 | 1983-06-14 | Boeing Aerospace Co. (A Division Of The Boeing Company) | Method for producing pre-shaped α-silicon nitride whisker compacts and loose whiskers for composite material reinforcement |
| EP0120004B1 (en) * | 1982-09-30 | 1987-05-06 | Ford Motor Company Limited | Method of preparing powder ingredients for subsequent consolidation |
| US4600547A (en) * | 1982-09-30 | 1986-07-15 | Ford Motor Company | Method of preparing powder ingredients by dry milling for subsequent consolidation |
-
1968
- 1968-10-01 GB GB1266506D patent/GB1266506A/en not_active Expired
-
1969
- 1969-09-30 FR FR6933231A patent/FR2019571A1/fr not_active Withdrawn
- 1969-10-01 CH CH1480669A patent/CH535183A/en not_active IP Right Cessation
- 1969-10-01 DE DE19691949587 patent/DE1949587C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH535183A (en) | 1973-03-31 |
| DE1949587C3 (en) | 1974-10-03 |
| FR2019571A1 (en) | 1970-07-03 |
| DE1949587A1 (en) | 1970-08-27 |
| DE1949587B2 (en) | 1974-02-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |