JPH0515669B2 - - Google Patents

Info

Publication number
JPH0515669B2
JPH0515669B2 JP62277150A JP27715087A JPH0515669B2 JP H0515669 B2 JPH0515669 B2 JP H0515669B2 JP 62277150 A JP62277150 A JP 62277150A JP 27715087 A JP27715087 A JP 27715087A JP H0515669 B2 JPH0515669 B2 JP H0515669B2
Authority
JP
Japan
Prior art keywords
self
combustion
metal elements
reaction
mixture
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 - Lifetime
Application number
JP62277150A
Other languages
English (en)
Other versions
JPH01119568A (ja
Inventor
Yoshio Myamoto
Hirohiko Nakada
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.)
Sumitomo Electric Industries Ltd
University of Osaka NUC
Original Assignee
Osaka University NUC
Sumitomo Electric Industries Ltd
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 Osaka University NUC, Sumitomo Electric Industries Ltd filed Critical Osaka University NUC
Priority to JP62277150A priority Critical patent/JPH01119568A/ja
Priority to US07/263,245 priority patent/US4999144A/en
Priority to DE8888310147T priority patent/DE3879619T2/de
Priority to EP88310147A priority patent/EP0314492B1/en
Publication of JPH01119568A publication Critical patent/JPH01119568A/ja
Publication of JPH0515669B2 publication Critical patent/JPH0515669B2/ja
Granted legal-status Critical Current

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
    • C04B35/5805—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 borides
    • C04B35/58064—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 borides based on refractory borides
    • C04B35/58078—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 borides based on refractory borides based on zirconium or hafnium borides
    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/5607—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 carbides or oxycarbides based on refractory metal carbides
    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/5607—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 carbides or oxycarbides based on refractory metal carbides
    • C04B35/5611—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 carbides or oxycarbides based on refractory metal carbides based on titanium carbides
    • 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
    • C04B35/56—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 carbides or oxycarbides
    • C04B35/565—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 carbides or oxycarbides based on silicon carbide
    • C04B35/575—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 carbides or oxycarbides based on silicon carbide obtained by pressure sintering
    • C04B35/5755—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 carbides or oxycarbides based on silicon carbide obtained by pressure sintering obtained by gas pressure sintering
    • 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
    • C04B35/58007—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 refractory metal nitrides
    • 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
    • C04B35/58007—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 refractory metal nitrides
    • C04B35/58014—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 refractory metal nitrides based on titanium nitrides, e.g. TiAlON
    • 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
    • C04B35/5805—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 borides
    • C04B35/58064—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 borides based on refractory borides
    • 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
    • C04B35/5805—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 borides
    • C04B35/58064—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 borides based on refractory borides
    • C04B35/58071—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 borides based on refractory borides based on titanium borides
    • 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
    • C04B35/581—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 aluminium nitride
    • 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
    • C04B35/584—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 silicon nitride
    • C04B35/593—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 silicon nitride obtained by pressure sintering
    • C04B35/5935—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 silicon nitride obtained by pressure sintering obtained by gas pressure sintering
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • C04B35/6455—Hot isostatic pressing
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
    • C04B35/651—Thermite type sintering, e.g. combustion sintering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Products (AREA)
  • Powder Metallurgy (AREA)

Description

【発明の詳細な説明】 イ 産業上の利用分野 本発明はセラミツクス焼結体を容易に得る方法
に関する。
ロ 従来の技術 セラミツクス焼結体を容易に得る方法として特
開昭60−246270号公報に開示されているように、
金属元素と非金属元素との混合物からセラミツク
スを合成する際、発生する反応熱を利用しセラミ
ツクスを合成すると同時に焼結する自己燃焼焼結
法がある。特に特開昭60−246270号では、熱間静
水圧プレス（以下HIPと称する）を用いて加圧下
にて行なういわゆる加圧自己燃焼焼結法が好まし
いとされている。
ハ 発明が解決しようとする問題点 加圧自己燃焼焼結法によつてセラミツクスを焼
結するには、金属元素と非金属元素の混合物を気
密容器内に封入した後、該気密容器内に設置した
反応開始用の熱源に気密容器外部からエネルギー
を与えることによつて熱源を加熱し金属元素と非
金属元素の混合物の一端からセラミツクスの合成
反応を開始させその反応熱によつて連鎖的に純度
の維持されたセラミツクスの合成焼結を行なう。
熱源として一般にはＷ、Moなどのフイラメン
トを用いる。しかし加圧自己燃焼焼結法における
加圧手段としても最も一般的なHIPを用いるため
に、金属元素と非金属元素の混合物に静水圧をか
けるため、気密容器内に該金属元素と非金属元素
の混合物を封入することが不可欠である。従つて
この気密容器内にＷ、Moなどのフイラメントを
設置しかつ気密容器の外部にＷ、Moなどのフイ
ラメントの給電用のリード線を気密を保つたまま
引き出す必要がある。気密容器に用いる材料とし
ては、ガラス・石英・白金管などが一般に推奨さ
れている。これらの気密容器Ｗ、Moなどのフイ
ラメントを気密を保つたまま外部にリード線を引
き出しながら設置するのは工業的にはきわめて困
難なことであり、加圧自己燃焼焼結法が工業的に
未だ実用化していない大きな原因の一つといわれ
ている。
ニ 発明の構成 (a) 問題点を解決するための手段 本説明は、加圧自己燃焼焼結法によつて、金属
元素と非金属元素の混合物からセラミツクスを合
成する際に発生する反応熱を利用してセラミツク
スを合成焼結を行なうにあたり、その合成反応の
開始用の熱源として、金属元素と非金属元素の混
合物を封入した気密容器の外部に配置した、金属
元素と非金属元素の混合物の一端を加熱し、連鎖
的に反応を進行させるいわゆる自己燃焼反応をお
こさせ、その際に発生する反応熱によつて気密容
器内部の金属元素と非金属元素の混合物を瞬間的
に加熱し、該金属元素と非金属元素の混合物から
セラミツクスを合成する反応を開始させ、その反
応熱によつて、連鎖的に純度の維持されたセラミ
ツクスの合成と焼結を行なうものである。
(b) 作用 上記のように本発明では、加圧自己燃焼焼結法
の反応開始に用いる熱源として、金属元素と非金
属元素の混合物を封入した気密容器の外部に配置
した、金属元素と非金属元素の混合物の、自己燃
焼反応を用いるものである。従つて、従来技術の
ように、ガラスや石英製の気密容器の内部に、気
密を保つたままで、外部にリード線を出しなが
ら、ＷやMoのフイラメントを設置する必要がな
いことはいうまでもない。また気密容器の外部に
配置した金属元素と非金属元素の混合物の自己燃
焼反応を開始させるための、加熱方法は、この外
部配置金属元素と非金属元素の混合物は、焼結す
る必要がない、即ち加圧する必要がないため、気
密容器内に、気密をたもつたままでフイラメント
を設置するような工業的にきわめて困難な加熱源
を必要とせず、簡単なフイラメント等で、直接加
熱するだけでよい。
なお本発明は、目的とする化合物の生成反応熱
を利用して、該化合物を合成焼結する方法である
ため、出発原料としては、十分な反応熱が生じる
ものであればよいことはいうまでもない。特に好
ましいのは金属元素と非金属元素の混合物から、
セラミツクスを合成焼結することであり、その中
でも金属元素として周期律表ａ、ａ、ａ、
ａ族金属の１種以上、非金属元素としてＢ、
Ｃ、Ｎ、Siの１種以上であると十分な生成反応熱
がえられるため好ましい。また加圧方法として
は、ホツトプレスのような一軸加圧でもよいが、
工業的には、熱間静水圧プレス（HIP）が好まし
い。
実施例 １ 市販の、Ti粉末を55.62ｇ、Ｂ粉末を10.81ｇを
ボールミルにて十分に混合した後、プレスにて加
圧成型したのち、バイレツクスガラス製の容器に
真空封入した。この試料をＣ製の容器内に設置し
該パイレツクスガラス製の容器の周囲にTiとＣ
の粉末を等モル混ぜた混合粉末でおおつた。この
Ｃ製の容器をHIP内に設置したのち、まずHIP内
を真空に排気した後、HIP内を850℃まで加熱し
た後、HIP内にArガスを300気圧まで導入した。
ここでＣ製の容器内のTiとＣの粉末内にあらか
じめ用意してあつたＷフイラメントにHIP外部か
ら通電加熱することによつて、TiとＢとの加圧
自己燃焼焼結をおこなつた。
得られた焼結体はTiB2−10wt％Tiの組成を有
する理論密度の約99.8％の焼結体であつた。従来
の技術にしたがうと、TiとＢとの混合粉末の圧
粉体をパレツクスガラス製の容器に真空封入する
際にＷフイラメントを該真空容器にいわゆるハー
メチツクシール（ガラスと金属とを真空を保つた
まま接合することをいう）によつて装着する必要
があり、工業的にはきわめて歩留まりが悪く、例
えば100回テストを行なつたところ、92回しか成
功しなつかつた。一方本発明によれば、ハーメチ
ツクシールのような工業的に歩留まりの悪い工程
をまつたく必要としないため100回テストを行な
つたところ100回とも成功した。
実施例 ２ 市販のSi粉末28ｇとＣ粉末12ｇとを十分に混合
した後加圧成型を行ない圧粉体を作成した。この
圧粉体を白金製の真空容器に真空封入したのち、
周囲をTiとＣの粉末を等モル混ぜた混合粉末に
てかこつたのちＣ製の容器内に設置した。このＣ
製容器をHIPにいれ、HIP内を1000℃に加熱した
後Arガスを導入しHIP内を450気圧まで加圧し
た。
しかるのちＣ製の容器内のTiとＣの粉末内に
あらかじめ用意してあつたＷフイラメントにHIP
外部から通電加熱することによつて、加圧自己燃
焼焼結を行なつた。その結果理論密度99.9％の
SiCの焼結体がえられた。
実施例 ３ 市販のアナターゼ型結晶構造を有するTiO2240
ｇ、Al粉末108ｇ、Ｃ粉末36ｇとを十分に混合し
たのち加圧成型を行なつた。
この圧粉体を、パイレツクスガラス製の容器に
真空封入したのち、Ｃ製の反応容器内に設置し、
該パイレツクスガラス容器の周囲にTiとＢの粉
末を１：２モルの比率で混ぜた混合粉末でおおつ
た。このＣ製容器をHIP内に設置したのち、880
℃まで加熱し、Arガスを450気圧まで導入した。
ここでＣ製容器内のTiとＢの混合粉末内にあ
らかじめ用意してあつたＷフイラメントにHIP外
部より通電加熱することによつて、加圧自己燃焼
焼結を行なつた。
その結果理論密度の97.2％のAl2O3−TiC複合
セラミツクスを得た。
効 果 以上説明してきたように、本発明を用いること
によつて、加圧自己燃焼焼結法を工業的に利用す
ることが可能となつた。

Claims (1)

  1. 【特許請求の範囲】 １ 加圧下金属元素と非金属元素の混合物からセ
    ラミツクスを合成する際に発生する反応熱を利用
    して、セラミツクスを合成焼結する加圧自己燃焼
    焼結法において、該金属元素と非金属元素の混合
    物を気密容器内に封入し、反応開始用の熱源とし
    て金属元素と非金属元素との混合粉末にて気密容
    器を外部からおおつたのち、該混合粉末の一端を
    簡単な加熱方法により加熱することによつて、該
    混合粉末に自己燃焼反応を起こさせ、その反応熱
    を気密容器を通して容器内の該封入混合物に瞬間
    的に伝達して、封入混合物を連鎖的自己燃焼反応
    によつて焼結させることを特徴とする加圧自己燃
    焼焼結法。 ２ 特許請求の範囲第１項記載の加圧自己燃焼焼
    結法において、金属元素が周期律表ａ、ａ、
    ａ、ａ族元素の１種以上からなり、非金属元
    素がＢ、Ｃ、Ｎ、Siの１種以上からなることを特
    徴とする加圧自己燃焼焼結法。 ３ 特許請求の範囲第１、２項記載の加圧自己燃
    焼焼結法において、加圧法として熱間静水圧プレ
    ス（HIP）を用いることを特徴とする加圧自己燃
    焼焼結法。
JP62277150A 1987-10-30 1987-10-30 加圧自己燃焼焼結法 Granted JPH01119568A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62277150A JPH01119568A (ja) 1987-10-30 1987-10-30 加圧自己燃焼焼結法
US07/263,245 US4999144A (en) 1987-10-30 1988-10-27 Pressure self-combustion sintering method
DE8888310147T DE3879619T2 (de) 1987-10-30 1988-10-28 Autothermisches drucksinterverfahren.
EP88310147A EP0314492B1 (en) 1987-10-30 1988-10-28 Pressure self-combustion sintering method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62277150A JPH01119568A (ja) 1987-10-30 1987-10-30 加圧自己燃焼焼結法

Publications (2)

Publication Number Publication Date
JPH01119568A JPH01119568A (ja) 1989-05-11
JPH0515669B2 true JPH0515669B2 (ja) 1993-03-02

Family

ID=17579497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62277150A Granted JPH01119568A (ja) 1987-10-30 1987-10-30 加圧自己燃焼焼結法

Country Status (4)

Country Link
US (1) US4999144A (ja)
EP (1) EP0314492B1 (ja)
JP (1) JPH01119568A (ja)
DE (1) DE3879619T2 (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015785A1 (fr) * 1989-06-12 1990-12-27 Kabushiki Kaisha Komatsu Seisakusho Methode de frittage d'une ceramique
CA2128213A1 (en) * 1992-01-16 1993-07-22 Jainagesh A. Sekhar Electrical heating element, related composites, and composition and method for producing such products using dieless micropyretic synthesis
US5651874A (en) 1993-05-28 1997-07-29 Moltech Invent S.A. Method for production of aluminum utilizing protected carbon-containing components
US6001236A (en) 1992-04-01 1999-12-14 Moltech Invent S.A. Application of refractory borides to protect carbon-containing components of aluminium production cells
US5310476A (en) 1992-04-01 1994-05-10 Moltech Invent S.A. Application of refractory protective coatings, particularly on the surface of electrolytic cell components
JPH06247775A (ja) * 1993-02-19 1994-09-06 Yoshio Miyamoto ガス圧燃焼焼結法
US5837632A (en) * 1993-03-08 1998-11-17 Micropyretics Heaters International, Inc. Method for eliminating porosity in micropyretically synthesized products and densified
US5449886A (en) * 1993-03-09 1995-09-12 University Of Cincinnati Electric heating element assembly
AU2464595A (en) * 1994-05-13 1995-12-05 Micropyretics Heaters International Sinter-homogenized heating products
EP0782636B1 (en) 1994-09-08 1999-05-06 MOLTECH Invent S.A. Aluminium electrowinning cell with improved carbon cathode blocks
US5794113A (en) * 1995-05-01 1998-08-11 The Regents Of The University Of California Simultaneous synthesis and densification by field-activated combustion
US5753163A (en) 1995-08-28 1998-05-19 Moltech. Invent S.A. Production of bodies of refractory borides
US6099978A (en) * 1996-02-28 2000-08-08 Micropyrctics Heaters International, Inc. Molybdenum silicide-containing products with high emissivity
WO2023162721A1 (ja) * 2022-02-24 2023-08-31 株式会社トクヤマ 炭化ケイ素粉末及びその製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627441A (en) * 1979-08-14 1981-03-17 Matsushita Electric Ind Co Ltd Printer unit
EP0435854B1 (en) * 1984-05-18 1995-03-29 Sumitomo Electric Industries Limited Method of sintering metal-dispersed reinforced ceramics
JPH0791567B2 (ja) * 1985-02-15 1995-10-04 株式会社小松製作所 焼結方法
JPS62256767A (ja) * 1986-04-30 1987-11-09 松下電器産業株式会社 炭窒化物と酸化物からなる複合焼結体の製造方法
JPS63239160A (ja) * 1986-11-28 1988-10-05 工業技術院長 無機化合物成形体の製造方法

Also Published As

Publication number Publication date
EP0314492B1 (en) 1993-03-24
EP0314492A1 (en) 1989-05-03
DE3879619D1 (de) 1993-04-29
JPH01119568A (ja) 1989-05-11
US4999144A (en) 1991-03-12
DE3879619T2 (de) 1993-09-23

Similar Documents

Publication Publication Date Title
JPH01119568A (ja) 加圧自己燃焼焼結法
Takagi et al. Filter cake forming and hot isostatic pressing for TZP-dispersed hydroxyapatite composite
JPH02188466A (ja) マイクロ波エネルギーによる材料加熱方法
AU2424995A (en) Method and apparatus for producing nanostructured ceramic powders and whiskers
DK0447388T3 (da) Fremgangsmåde til fremstilling af finkornede, sintringsaktive nitrid- og carbonitridpulvere af titan
CN111943211B (zh) 一种金属硅化物制备方法和制备辅助装置
JPH0246540B2 (ja)
KR102574046B1 (ko) 보론 카바이드의 저온 제조 방법
US4944930A (en) Synthesis of fine-grained α-silicon nitride by a combustion process
IE46046B1 (en) Method of manufacturing modified silicon nitrides
Norton et al. Brazing of aluminum nitride substrates
JPH05506066A (ja) 耐熱性金属物品の窒化方法
JP2596638B2 (ja) 硫化物セラミックスの製造方法
US5720917A (en) Manufacturing method for silicon nitride-based sintered body
JPS62162608A (ja) 窒化珪素微粉末の製造方法
JPH0649640B2 (ja) 窒化アルミニウムイスカの製造方法
JPH01230779A (ja) 窒化アルミニウムの製造方法
KR20160051034A (ko) 등방 가압 고상반응법을 이용한 화합물 형성 방법
JPS6028782B2 (ja) 透光性立方晶窒化ほう素緻密体の製造法
US5258337A (en) Reaction processing of AlN/B4 C composites
JPH02233562A (ja) 燃焼焼結法
JPS6345175A (ja) 立方晶窒化硼素焼結体の製造方法
JPH0218284B2 (ja)
JPS63100099A (ja) β−サイアロンウイスカ−の製造方法
JPH0468241B2 (ja)

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term