GB1373693A - Method of producing imperfect wurtzite-like boron nitride - Google Patents

Method of producing imperfect wurtzite-like boron nitride

Info

Publication number
GB1373693A
GB1373693A GB1926072A GB1926072A GB1373693A GB 1373693 A GB1373693 A GB 1373693A GB 1926072 A GB1926072 A GB 1926072A GB 1926072 A GB1926072 A GB 1926072A GB 1373693 A GB1373693 A GB 1373693A
Authority
GB
United Kingdom
Prior art keywords
boron nitride
wurtzite
less
additive
imperfect
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
Application number
GB1926072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
I KHIM FIZ AKADEMII NAUK SSR
INST NOVYKH KHIM AKADEMII NAUK
Original Assignee
I KHIM FIZ AKADEMII NAUK SSR
INST NOVYKH KHIM AKADEMII NAUK
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
Application filed by I KHIM FIZ AKADEMII NAUK SSR, INST NOVYKH KHIM AKADEMII NAUK filed Critical I KHIM FIZ AKADEMII NAUK SSR
Publication of GB1373693A publication Critical patent/GB1373693A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/08—Application of shock waves for chemical reactions or for modifying the crystal structure of substances
    • 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
    • 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
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/065—Composition of the material produced
    • B01J2203/066—Boronitrides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/32—Thermal properties
    • C01P2006/33—Phase transition temperatures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Products (AREA)
  • Luminescent Compositions (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

1373693 Wurtzite-like boron nitride FILIAL ORDENA LENINA INSTITUTA KHIMICHESKOI 26 April 1972 [19 July 1971] 19260/72 Heading C1A Imperfect wurtzite-like boron nitride having a crystal unit cell wherein a0 = 2À55Š and c0 = 4À20Š at 25‹ C., a pycometric density of from 3À10 g./cm.<3> to 3À38 g./cm.<3>, a transition temperature into graphite-like boron nitride of 700‹ C., a specific surface area of not less than 10 m.<2>/g. and a refractive index less than 2À10 for red light of specific wave length 6620Š. The product may be made by subjecting a mixture of powdered graphite-like boron nitride and an additive other than an elemental metal having a shock impedance different from, and a residual temperature lower than that of the BN to be formed to a shock wave. The pressure of the shock wave may be not less than 100 K Bar and may be produced by an explosion in a protective device. The additive may be water or an aqueous solution (1-5%), of an alkaline reagent such as NaOH, KOH or Na2CO3.
GB1926072A 1971-07-19 1972-04-26 Method of producing imperfect wurtzite-like boron nitride Expired GB1373693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1692355 1971-07-19

Publications (1)

Publication Number Publication Date
GB1373693A true GB1373693A (en) 1974-11-13

Family

ID=20486388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1926072A Expired GB1373693A (en) 1971-07-19 1972-04-26 Method of producing imperfect wurtzite-like boron nitride

Country Status (12)

Country Link
JP (1) JPS5328880B2 (en)
BG (1) BG20887A1 (en)
CA (1) CA992291A (en)
CH (1) CH580539A5 (en)
CS (1) CS160340B1 (en)
DD (1) DD97638A1 (en)
DE (1) DE2219394C3 (en)
FR (1) FR2146209B1 (en)
GB (1) GB1373693A (en)
HU (1) HU164894B (en)
IT (1) IT965682B (en)
PL (1) PL75590B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000458A1 (en) * 1980-07-31 1982-02-18 Apollonov V Method of obtaining diamond and/or diamond-like modifications of boron nitride

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE39632B1 (en) * 1973-09-06 1978-11-22 Gen Electric Production of high-density boron nitride
JPS5232900A (en) * 1975-09-10 1977-03-12 Hitachi Ltd Process for production of cubic boron nitride

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000458A1 (en) * 1980-07-31 1982-02-18 Apollonov V Method of obtaining diamond and/or diamond-like modifications of boron nitride
US4483836A (en) * 1980-07-31 1984-11-20 Institut Khimicheskoi Fiziki Akademii Nauk Sssr Method of producing diamond and/or diamond-like modifications of boron nitride
AT386592B (en) * 1980-07-31 1988-09-12 Inst Khim Fiz An Sssr METHOD FOR PRODUCING DIAMOND AND / OR CRYSTALLINE DIAMOND-LIKE MODIFICATIONS OF BORNITRIDE
DE3050564C2 (en) * 1980-07-31 1988-12-29 Institut Chimiceskoj Fiziki Akademii Nauk Sssr, Cernogolovka, Su

Also Published As

Publication number Publication date
CH580539A5 (en) 1976-10-15
AU4174272A (en) 1973-11-08
CS160340B1 (en) 1975-03-28
JPS4932899A (en) 1974-03-26
DE2219394B2 (en) 1979-02-08
DD97638A1 (en) 1973-05-14
DE2219394C3 (en) 1979-09-20
HU164894B (en) 1974-05-28
DE2219394A1 (en) 1973-02-01
JPS5328880B2 (en) 1978-08-17
BG20887A1 (en) 1976-01-20
FR2146209A1 (en) 1973-03-02
FR2146209B1 (en) 1977-11-10
CA992291A (en) 1976-07-06
IT965682B (en) 1974-02-11
PL75590B1 (en) 1974-12-31

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee