GB1391665A - Catalyst systems for the production of cubic boron nitride - Google Patents
Catalyst systems for the production of cubic boron nitrideInfo
- Publication number
- GB1391665A GB1391665A GB2936372A GB2936372A GB1391665A GB 1391665 A GB1391665 A GB 1391665A GB 2936372 A GB2936372 A GB 2936372A GB 2936372 A GB2936372 A GB 2936372A GB 1391665 A GB1391665 A GB 1391665A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boron nitride
- cubic boron
- production
- catalyst systems
- alloy
- 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
- C04B35/5831—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 based on cubic boron nitrides or Wurtzitic boron nitrides, including crystal structure transformation of powder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Powder Metallurgy (AREA)
- Catalysts (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
1391665 Cubic boron nitride GENERAL ELECTRIC CO 22 June 1972 [1 July 1971] 29363/72 Heading C1A Hexagonal boron nitride is converted into cubic boron nitride in the presence of at least one alloy of aluminium with cobalt, nickel or manganese. The temperature and pressure conditions and the apparatus are conventional for the conversion. The alloy may be pre-formed or prepared in situ, and it may be used in sheet form or particulate form, in this ease mixed with the hexagonal boron nitride. A finely divided hard crystalline material such as tungsten carbide, cubic boron nitride, aluminium oxide or silicon nitride may be mixed with the boron nitride charge. Tool inserts may be prepared by the process of the invention.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15871071A | 1971-07-01 | 1971-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1391665A true GB1391665A (en) | 1975-04-23 |
Family
ID=22569359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2936372A Expired GB1391665A (en) | 1971-07-01 | 1972-06-22 | Catalyst systems for the production of cubic boron nitride |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5517000B2 (en) |
| AT (1) | AT352078B (en) |
| BE (1) | BE785770A (en) |
| CA (1) | CA982541A (en) |
| CH (1) | CH573867A5 (en) |
| DE (1) | DE2232225C3 (en) |
| DK (1) | DK144415C (en) |
| FR (1) | FR2143954B1 (en) |
| GB (1) | GB1391665A (en) |
| IT (1) | IT956917B (en) |
| NL (1) | NL174714C (en) |
| SE (2) | SE393588B (en) |
| ZA (1) | ZA724056B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE805525A (en) * | 1972-10-02 | 1974-04-01 | Vnii Abrazivov | EXTRA-HARD COMPOSITE MATERIAL BASED ON CUBIC BORON NITRIDE AND PROCESS FOR OBTAINING THIS MATERIAL |
| IN150013B (en) * | 1977-07-01 | 1982-06-26 | Gen Electric | |
| JPS5860604A (en) * | 1981-10-01 | 1983-04-11 | Komatsu Ltd | Synthesis of cubic boron nitride |
| US5043120A (en) * | 1988-11-10 | 1991-08-27 | The General Electric Company | Process for preparing polycrystalline CBN ceramic masses |
| US9808544B2 (en) | 2005-08-31 | 2017-11-07 | Ultraviolet Sciences, Inc. | Ultraviolet light treatment chamber |
| JP5613970B2 (en) * | 2011-03-30 | 2014-10-29 | 三菱マテリアル株式会社 | Method for synthesizing cubic boron nitride and method for producing sintered cubic boron nitride |
| WO2020096038A1 (en) * | 2018-11-08 | 2020-05-14 | 国立大学法人群馬大学 | Particle group measurement device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3192015A (en) | 1963-04-01 | 1965-06-29 | Gen Electric | Growth of large cubic form of boron nitride crystals |
-
1972
- 1972-06-13 ZA ZA724056A patent/ZA724056B/en unknown
- 1972-06-22 GB GB2936372A patent/GB1391665A/en not_active Expired
- 1972-06-27 NL NLAANVRAGE7208866,A patent/NL174714C/en not_active IP Right Cessation
- 1972-06-27 CA CA145,768A patent/CA982541A/en not_active Expired
- 1972-06-28 IT IT26341/72A patent/IT956917B/en active
- 1972-06-29 JP JP6539272A patent/JPS5517000B2/ja not_active Expired
- 1972-06-30 SE SE7208676A patent/SE393588B/en unknown
- 1972-06-30 FR FR7223865A patent/FR2143954B1/fr not_active Expired
- 1972-06-30 DK DK327472A patent/DK144415C/en not_active IP Right Cessation
- 1972-06-30 DE DE2232225A patent/DE2232225C3/en not_active Expired
- 1972-06-30 CH CH981872A patent/CH573867A5/xx not_active IP Right Cessation
- 1972-07-03 AT AT571272A patent/AT352078B/en active
- 1972-07-03 BE BE785770A patent/BE785770A/en not_active IP Right Cessation
-
1976
- 1976-01-08 SE SE7600140A patent/SE418962B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BE785770A (en) | 1972-11-03 |
| DE2232225A1 (en) | 1973-01-18 |
| DE2232225C3 (en) | 1982-02-04 |
| FR2143954A1 (en) | 1973-02-09 |
| JPS4818200A (en) | 1973-03-07 |
| NL7208866A (en) | 1973-01-03 |
| SE393588B (en) | 1977-05-16 |
| ATA571272A (en) | 1979-02-15 |
| IT956917B (en) | 1973-10-10 |
| SE418962B (en) | 1981-07-06 |
| CA982541A (en) | 1976-01-27 |
| NL174714C (en) | 1984-08-01 |
| DE2232225B2 (en) | 1981-04-16 |
| FR2143954B1 (en) | 1977-08-26 |
| SE7600140L (en) | 1976-01-08 |
| JPS5517000B2 (en) | 1980-05-08 |
| AT352078B (en) | 1979-08-27 |
| ZA724056B (en) | 1973-03-28 |
| DK144415B (en) | 1982-03-08 |
| DK144415C (en) | 1982-08-16 |
| CH573867A5 (en) | 1976-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |