KR860000215A - 고순도 육방정 질화 붕소 분말 및 그 제조방법 - Google Patents

고순도 육방정 질화 붕소 분말 및 그 제조방법 Download PDF

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Publication number
KR860000215A
KR860000215A KR1019850004000A KR850004000A KR860000215A KR 860000215 A KR860000215 A KR 860000215A KR 1019850004000 A KR1019850004000 A KR 1019850004000A KR 850004000 A KR850004000 A KR 850004000A KR 860000215 A KR860000215 A KR 860000215A
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powder
mixed
boron nitride
hexagonal boron
nitride powder
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KR1019850004000A
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KR890002543B1 (ko
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다께시 오가사와라 (외 3)
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야기 야스히로 (외 1)
가와사기 세이데쯔 가부시기 가이샤
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Priority claimed from JP59117375A external-priority patent/JPS60260405A/ja
Priority claimed from JP59182379A external-priority patent/JPS6158806A/ja
Application filed by 야기 야스히로 (외 1), 가와사기 세이데쯔 가부시기 가이샤 filed Critical 야기 야스히로 (외 1)
Publication of KR860000215A publication Critical patent/KR860000215A/ko
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Publication of KR890002543B1 publication Critical patent/KR890002543B1/ko

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    • 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
    • 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
    • C01B21/0648—After-treatment, e.g. grinding, purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/60—Compounds characterised by their crystallite size
    • 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
    • C01P2006/80—Compositional purity

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Products (AREA)

Abstract

내용 없음

Description

고순도 육방정 질화 붕소 분말 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 제조방법에 의한 탄소질 분말의 첨가량과 얻어진 h-BN 분말의 결정자의 평균 크기와의 관계를 나타내는 상관도. 제4도는 조제(粗製) h-BN 분말을 본 발명에 의하여 고순도화 하기 위하여 가열처리함에 있어 열처리 온도와 처리후의 h-BN 분말의 순도와의 관계를 나타내는 상관도. 제5도는 조제 h-BN 분말을 본 발명에 의하여 고순도화 하기 위하여 가열처리함에 있어 열처리시간과 처리후의 h-BN 분말의 순도와의 관계를 나타내는 상관도.

Claims (8)

  1. 순도 97중량%이상이면서, 평균 결정자의 크기가 8-50㎜의 범위내인 것을 특징으로 하는 육방정질화 붕소분말.
  2. 조제육방정질화 붕소분말에 탄소질 분말을 첨가 혼합하여 혼합분말을 제조하고, 그 혼합분말을 불활성 가스 기류중에서 가열처리함으로서, 순도가 97중량% 이상이면서 평균 결정자의 크기가 8-50㎜의 범위내의 육방정질화 붕소분말을 제조하는 것을 특징으로 하는 고순도 육방정 질화붕소분말의 제조방법.
  3. 제2항에 있어서, 조제 육방정 질화붕소 분말은 순도가 70-90중량%의 것을 사용하는 고순도 육방정질화붕소 분말의 제조방법.
  4. 제2항에 있어서, 탄소질 분말의 양이 조제 육방정 질화붕소분말에 대하여 0.5-2.0중량%인 고순도 육방정 질화 붕소 분말의 제조방법.
  5. 붕산 또는 산화 붕소와 질소 화합물의 혼합분말에 붕산 또는 산화붕소에 대하여 5-50중량% 범위내의 양의 붕사 또는 무수붕사를 혼합하고, 그 혼합분말을 암모니아 가스 기류내에서 가열하여 조제 육방정질화 붕소 분말을 제조하고, 조제육방정 질화 붕소 분말에 0.5-2.0중량%의 양의 탄소질 분말을 혼합하고, 탄소질 분말과 혼합된 조제 육방정 질화 붕소 분말을 불활성 가스 기류내에서 1300°C 이상의 온도에서 가열하는 단계로 구성되는 것을 특징으로 하는 고순도 육방정 질화 붕소 분말의 제조방법.
  6. 조제 육방정 질화 붕소분말에, 그에 포함된 전체 불순물양에 대하여 5-15중량%의 탄소질 분말을 첨가 혼합하고, 암모니아 가스 또는 암모니아 가스와 비산화성가스와의 혼합가스 기류중에서, 1500°C 이상의 온도에서 탄소질 분말과 혼합된 조제육방정 질화 붕소분말을 가열 함으로서, 미세하게 분활된 고순도 육방정 질화 붕소분말의 제조방법.
  7. 산소함유 붕소화합물과 질소화합물의 혼합 분말에, 알카리 토류금속으로서 혼합분말내의 붕소의 몰당 0.002-0.1몰량의 알카리 토금속화합물을 첨가하고, 또한 그 혼합분말에, 혼합분말내의 붕소의 몰당 탄소로서 0.01-0.1몰량의 탄소질 분말 또는 혼합분말내의 산소함유 붕소화합물에 대하여 2.5-30중량%의 양의 무수붕사를 첨가하고, 상압하 또는 감압하의 비산화성분위기중에서 그 혼합분말을 가열하는 단계로되는 저결정성 고순도 육방정 질화 붕소의 제조방법.
  8. ※ 참고사항 : 최초출원내용에 의하여 공개하는 것임.
KR1019850004000A 1984-06-07 1985-06-07 고순도육방정질화붕소분말및제조방법 KR890002543B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP59117375A JPS60260405A (ja) 1984-06-07 1984-06-07 六方晶窒化硼素粉末およびその製造方法
JP59-117375 1984-06-07
JP59182379A JPS6158806A (ja) 1984-08-30 1984-08-30 高純度六方晶窒化硼素粉末の製造方法
JP117375 1987-05-14
JP182379 1988-07-21

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KR860000215A true KR860000215A (ko) 1986-01-27
KR890002543B1 KR890002543B1 (ko) 1989-07-18

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US (1) US4784978A (ko)
EP (1) EP0170817B1 (ko)
KR (1) KR890002543B1 (ko)
AU (1) AU576867B2 (ko)
CA (1) CA1260671A (ko)
DE (1) DE3577688D1 (ko)

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AU4330785A (en) 1985-12-12
KR890002543B1 (ko) 1989-07-18
EP0170817B1 (en) 1990-05-16
US4784978A (en) 1988-11-15
AU576867B2 (en) 1988-09-08
EP0170817A3 (en) 1987-01-21
DE3577688D1 (de) 1990-06-21
CA1260671A (en) 1989-09-26
EP0170817A2 (en) 1986-02-12

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