SE7508551L - PREPARATION OF CUBIC BORNITRID. - Google Patents

PREPARATION OF CUBIC BORNITRID.

Info

Publication number
SE7508551L
SE7508551L SE7508551A SE7508551A SE7508551L SE 7508551 L SE7508551 L SE 7508551L SE 7508551 A SE7508551 A SE 7508551A SE 7508551 A SE7508551 A SE 7508551A SE 7508551 L SE7508551 L SE 7508551L
Authority
SE
Sweden
Prior art keywords
boron nitride
cubic
catalyst
cubic boron
shaped
Prior art date
Application number
SE7508551A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE411443B (en
Inventor
R J Vacaney
Original Assignee
De Beers Ind Diamond
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ZA00744812A external-priority patent/ZA744812B/en
Application filed by De Beers Ind Diamond filed Critical De Beers Ind Diamond
Publication of SE7508551L publication Critical patent/SE7508551L/en
Publication of SE411443B publication Critical patent/SE411443B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/06—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • C01B21/064—Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron with boron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/24—Nitrogen compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Products (AREA)
  • Catalysts (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

In order to prepare needle-shaped, cubic boron nitride which is suitable, in particular, for manufacturing grinding discs, a sleeve (12) which is made of hexagonal boron nitride and encircles a catalyst core (10), is arranged in a reaction zone in which the temperature and pressure conditions suitable for forming cubic boron nitride are generated. The mass ratio between the hexagonal boron nitride and the catalyst is in the range of from 10:1 to 3:1. The catalyst used can be a nitride of an alkali or an alkaline earth metal. The needle-shaped, cubic boron nitride particles are used to produce grinding discs. <IMAGE>
SE7508551A 1974-07-29 1975-07-28 ELLANGA CUBINIAN BORNITRID PARTICLES AND PROCEDURE FOR ITS MANUFACTURE SE411443B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA00744812A ZA744812B (en) 1974-07-29 1974-07-29 Production of cubic boron nitride
ZA751595 1975-03-14

Publications (2)

Publication Number Publication Date
SE7508551L true SE7508551L (en) 1976-01-30
SE411443B SE411443B (en) 1979-12-27

Family

ID=27131106

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7508551A SE411443B (en) 1974-07-29 1975-07-28 ELLANGA CUBINIAN BORNITRID PARTICLES AND PROCEDURE FOR ITS MANUFACTURE

Country Status (18)

Country Link
JP (1) JPS5137897A (en)
AR (1) AR209313A1 (en)
AT (1) AT359974B (en)
AU (1) AU498756B2 (en)
BR (1) BR7504828A (en)
CA (1) CA1072296A (en)
CH (1) CH618145A5 (en)
DE (1) DE2531339A1 (en)
ES (1) ES439828A1 (en)
FI (1) FI63203C (en)
FR (1) FR2280583A1 (en)
GB (1) GB1505923A (en)
IE (1) IE42151B1 (en)
IL (1) IL47808A (en)
IN (1) IN143200B (en)
IT (1) IT1044741B (en)
NL (1) NL7508934A (en)
SE (1) SE411443B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5181939A (en) * 1989-12-20 1993-01-26 Charles Neff Article and a method for producing an article having a high friction surface
US5213590A (en) * 1989-12-20 1993-05-25 Neff Charles E Article and a method for producing an article having a high friction surface
JP4183317B2 (en) * 1997-11-25 2008-11-19 昭和電工株式会社 Method for producing cubic boron nitride
US6997790B2 (en) 2002-08-07 2006-02-14 Neff Charles E Method of fabricating pliant workpieces, tools for performing the method and methods for making those tools

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941248A (en) * 1958-01-06 1960-06-21 Gen Electric High temperature high pressure apparatus
US2947617A (en) * 1958-01-06 1960-08-02 Gen Electric Abrasive material and preparation thereof
GB860499A (en) * 1958-01-27 1961-02-08 Gen Electric Methods of making cubic boron nitride

Also Published As

Publication number Publication date
FI752094A (en) 1976-01-30
IE42151B1 (en) 1980-06-18
FI63203B (en) 1983-01-31
FR2280583A1 (en) 1976-02-27
AT359974B (en) 1980-12-10
ES439828A1 (en) 1977-06-01
ATA580675A (en) 1980-05-15
AU8336775A (en) 1977-01-27
CH618145A5 (en) 1980-07-15
IN143200B (en) 1977-10-15
AU498756B2 (en) 1979-03-22
GB1505923A (en) 1978-04-05
FR2280583B1 (en) 1981-06-12
IL47808A0 (en) 1975-10-15
IT1044741B (en) 1980-04-21
DE2531339A1 (en) 1976-02-12
IL47808A (en) 1977-08-31
BR7504828A (en) 1976-07-06
SE411443B (en) 1979-12-27
NL7508934A (en) 1976-02-02
CA1072296A (en) 1980-02-26
AR209313A1 (en) 1977-04-15
IE42151L (en) 1976-01-29
JPS5137897A (en) 1976-03-30
FI63203C (en) 1983-05-10

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