GB1521788A - Manufacture of articles from hexagonal boron nitride - Google Patents
Manufacture of articles from hexagonal boron nitrideInfo
- Publication number
- GB1521788A GB1521788A GB2798976A GB2798976A GB1521788A GB 1521788 A GB1521788 A GB 1521788A GB 2798976 A GB2798976 A GB 2798976A GB 2798976 A GB2798976 A GB 2798976A GB 1521788 A GB1521788 A GB 1521788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- articles
- boron nitride
- manufacture
- hexagonal boron
- dopant
- 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
- C04B35/583—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 boron nitride
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
1521788 Sintered boron nitride MOSKOV HIMIKO-TEKHNOLOGICHE INST IM DI MENDELEEVA 6 July 1976 27989/76 Heading C7D Sintered hexagonal BN articles are formed from a compacted powder mixture of BN and 1-5 wt. per cent of a dopant which forms a liquid phase during sintering, e.g. oxides or borates of Mg, Ca, Y, La, packing the compact in a first layer of a material inert to BN and an outer layer of carbonaceous material and sintering at 1600-1800‹C in an oxidizing atmosphere. The dopant is volatilized during sintering.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2798976A GB1521788A (en) | 1976-07-06 | 1976-07-06 | Manufacture of articles from hexagonal boron nitride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2798976A GB1521788A (en) | 1976-07-06 | 1976-07-06 | Manufacture of articles from hexagonal boron nitride |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1521788A true GB1521788A (en) | 1978-08-16 |
Family
ID=10268503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2798976A Expired GB1521788A (en) | 1976-07-06 | 1976-07-06 | Manufacture of articles from hexagonal boron nitride |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1521788A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013108059A1 (en) * | 2012-01-20 | 2013-07-25 | Potemkin Alexander | Process for producing products from resistant ceramic |
US20150147520A1 (en) * | 2013-11-27 | 2015-05-28 | Kennametal Inc. | Sintered boron nitride body and method for producing a sintered boron nitride body |
-
1976
- 1976-07-06 GB GB2798976A patent/GB1521788A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013108059A1 (en) * | 2012-01-20 | 2013-07-25 | Potemkin Alexander | Process for producing products from resistant ceramic |
US20150147520A1 (en) * | 2013-11-27 | 2015-05-28 | Kennametal Inc. | Sintered boron nitride body and method for producing a sintered boron nitride body |
US9862163B2 (en) * | 2013-11-27 | 2018-01-09 | Kennametal Inc. | Sintered boron nitride body and method for producing a sintered boron nitride body |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IE45842L (en) | Sintered silicon carbide | |
GB1438709A (en) | Silicon carbide ceramice | |
GB1454181A (en) | Semiconductive ceramic compositions | |
GB1392161A (en) | Method of producing ceramics of silicon nitride | |
GB1325204A (en) | Production of hard articles of a boron-carbon compound | |
GB1268982A (en) | Alumina refractories | |
GB1434136A (en) | Sintered refractory material | |
GB1430019A (en) | Dense products comprising hexagonal silicon aluminium oxynitride | |
GB1230823A (en) | ||
GB1312315A (en) | Method for manufacturing heat-resistant reinforced composite materials | |
GB1138719A (en) | Ceramic resistance bodies | |
GB1521788A (en) | Manufacture of articles from hexagonal boron nitride | |
JPS53117386A (en) | Sindered body for heat and sink production of the same | |
GB1298808A (en) | Oxidation-resistant material | |
GB1513834A (en) | High temperature resistant heat insulating ceramic material | |
JPS56112438A (en) | Cubic system boron nitride sintered body | |
GB1273145A (en) | An improved process for nitriding silicon | |
GB1333147A (en) | Dense alloys | |
FR2221421A1 (en) | Silicon oxynitride refractories mfr. - by mixing with metal oxides, compacting and sintering at high temp. | |
JPS5426205A (en) | Preparation of superhard alloy containing molybdenum | |
EP0172764A3 (en) | Ceramic sintered body | |
PARK | EFFECT OF MAGNESIUM OXIDE ON THE NITRIDATION OF SILICON COMPACT | |
IT1118486B (en) | PROCEDURE FOR THE MANUFACTURE OF SILICON NITRIDE OBJECTS BY SINTERING DUST | |
SE313521B (en) | ||
JPS57131334A (en) | Manufacture of sintered body of cubic system boron nitride |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |