SE7906864L - PROCEDURE FOR THE PREPARATION OF POLYCRYSTALLIN BORNITRIDE - Google Patents

PROCEDURE FOR THE PREPARATION OF POLYCRYSTALLIN BORNITRIDE

Info

Publication number
SE7906864L
SE7906864L SE7906864A SE7906864A SE7906864L SE 7906864 L SE7906864 L SE 7906864L SE 7906864 A SE7906864 A SE 7906864A SE 7906864 A SE7906864 A SE 7906864A SE 7906864 L SE7906864 L SE 7906864L
Authority
SE
Sweden
Prior art keywords
preparation
polycrystallin
bornitride
procedure
reaction mixture
Prior art date
Application number
SE7906864A
Other languages
Swedish (sv)
Other versions
SE422933B (en
Inventor
V N Troitsky
O N Breusov
E S Bogorodsky
B M Sokolovsky
Y A Shifrin
B N Surnin
N S Goryachev
A N Dremin
S V Pershin
V Y Averin
T V Bavina
I A Kiyansky
B M Grebtsov
Original Assignee
Inst Novykh Khim Akademii Nauk
Inst Khim Fiz An Sssr
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 Inst Novykh Khim Akademii Nauk, Inst Khim Fiz An Sssr filed Critical Inst Novykh Khim Akademii Nauk
Priority to SE7906864A priority Critical patent/SE422933B/en
Publication of SE7906864L publication Critical patent/SE7906864L/en
Publication of SE422933B publication Critical patent/SE422933B/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
    • 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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Products (AREA)

Abstract

The invention relates to a process for the preparation of extremely hard composite materials, and especially to a process for the preparation of polycrystalline boron nitride. In this process, a reaction mixture is first prepared from boron nitride and high-melting materials such as for example titanium nitride or titanium carbonitride, and this reaction mixture is subjected to high pressure and high temperature. The high-melting material must have a particle size of 50-1000 Angstroms. The invention can be used for making tools for the processing of alloys that are difficult to machine and work.
SE7906864A 1979-08-16 1979-08-16 Process for the preparation of polycrystalline boron nitride SE422933B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7906864A SE422933B (en) 1979-08-16 1979-08-16 Process for the preparation of polycrystalline boron nitride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7906864A SE422933B (en) 1979-08-16 1979-08-16 Process for the preparation of polycrystalline boron nitride

Publications (2)

Publication Number Publication Date
SE7906864L true SE7906864L (en) 1981-02-17
SE422933B SE422933B (en) 1982-04-05

Family

ID=20338637

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7906864A SE422933B (en) 1979-08-16 1979-08-16 Process for the preparation of polycrystalline boron nitride

Country Status (1)

Country Link
SE (1) SE422933B (en)

Also Published As

Publication number Publication date
SE422933B (en) 1982-04-05

Similar Documents

Publication Publication Date Title
JP3554379B2 (en) Pressureless sintering method of whisker reinforced alumina composite
NO801727L (en) PROCEDURE FOR MANUFACTURING CUBIC BORN NITRID
ES389963A1 (en) Diamond tools for machining
JPS5856018B2 (en) High-density phase boron nitride composite sintered body for cutting tools and its manufacturing method
JPH04243973A (en) Sintered ceramic product
GB1069108A (en) A process for preparing silicon nitride articles
SE7906864L (en) PROCEDURE FOR THE PREPARATION OF POLYCRYSTALLIN BORNITRIDE
US4900700A (en) Silicon nitride-titanium nitride based ceramic composites and methods of preparing the same
GB1026903A (en) Improvements in or relating to refractory materials
US2471016A (en) Hard compositions for use in tools and method of making
GB1465152A (en) Method of producing a refractory material and material produced by such a method
ES8106413A1 (en) Diamond compacts and tools containing them.
SU729122A1 (en) Method of producing extra-hard material
Anfilogov et al. Carbothermal synthesis of nanosized silicon carbide under an autonomous protective atmosphere.
Shkoda et al. Effect of preliminary separate mechanical activation on self-propagating high-temperature synthesis of niobium silicides
SU812549A1 (en) Composition for preparing abrasive tool
Reed et al. Ceramic tools chip away at productivity problems
RU1542071C (en) Superhard composite material
SU800176A1 (en) "medik-4" composition for bulk treatment of articles
SU429122A1 (en) SINTERED TOOL L ^ ATERIAL
Bach Fine-Turning of Steel With Ceramic Tools. An Investigation on the Generation of Technical Surfaces
SE7901004L (en) PULP FOR MANUFACTURE OF GRINDING TOOLS
GB839326A (en) Improvements relating to hard ceramic materials
GB359303A (en) Improvements in or relating to lathes or other like machine tools
Bach Feindrehen von Stahl mit Schneidkeramik. Eine Untersuchung zur Erzeugung technischer Oberflaechen.(Fine-turning of steel with ceramic tools. An investigation on the generation of technical surfaces)

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7906864-9

Effective date: 19920306

Format of ref document f/p: F