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Self-reinforced silicon nitride ceramic of high fracture toughness 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C04B-035/58
출원번호 US-0290720 (1989-02-28)
발명자 / 주소
  • Pyzik Aleksander J. (Midland MI) Schwarz Douglas B. (Midland MI) Dubensky William J. (Traverse City MI) Beaman Donald R. (Midland MI)
출원인 / 주소
  • The Dow Chemical Company (Midland MI 02)
인용정보 피인용 횟수 : 8  인용 특허 : 23

초록

A process for preparing a self-reinforced silicon nitride ceramic body of high fracture toughness comprising hot-pressing a powder mixture containing silicon nitride, magnesium oxide, yttrium oxide and calcium oxide under conditions such that densification and the in situ formation of bb

대표청구항

A silicon nitride ceramic body having a fracture toughness greater than about 6 MPa (m)½, as measured by the Chevron notch technique at about 23°C., consisting essentially of (a) a crystalline phase of b20 volume percent, as measured in a plane by scanning electron microscopy, is in the form of whis

이 특허에 인용된 특허 (23)

  1. Burden Stephen J. (Troy MI), High toughness silicon nitride cutting tools.
  2. Greskovich Charles D. (Schenectady NY), Light-transmitting silicon nitride.
  3. Kamijo Eiji (Itami JPX) Higuchi Matsuo (Itami JPX) Komura Osamu (Itami JPX), Manufacturing method for fiber reinforced silicon ceramics sintered body.
  4. Komeya ; Katsutoshi ; Inoue ; Hiroshi, Method for manufacturing heat-resistant reinforced composite materials.
  5. Masaki Hideyuki (Nagoya JA), Method for producing a sintered silicon nitride base ceramic and said ceramic.
  6. Masaki Hideyuki (Nagoya JA), Method for producing a sintered silicon nitride base ceramic and said ceramic.
  7. Ishii Takashi (Tokyo JPX) Nishida Katsutoshi (Yokohama JPX) Komatsu Michiyasu (Yokohama JPX) Tsuge Akihiko (Yokohama JPX), Method of producing highly densified ceramic articles.
  8. Samanta Shyam K. (Ypsilanti MI) Subramanian Krishnamoorthy (Inkster MI) Ezis Andre (Grosse Ile MI), Method of using Si3N4.Y2O3.SiO2ceramic system for.
  9. Sarin Vinod K. (Lexington MA) Buljan Sergej-Tomislav (Acton MA), Nitride coated silicon nitride cutting tools.
  10. Sterzel Hans-Josef (Dannstadt-Schauernheim DEX), Preparation of very strong and very heat-stable ceramic moldings of silicon nitride.
  11. Wittmer Dale E. (Carbondale IL), Process for producing beta silicon nitride fibers.
  12. Tsuge Akihiko (Yokohama JPX) Komatsu Michiyasu (Yokohama JPX) Inoue Hiroshi (Kawaguchi JPX) Komeya Katsutoshi (Oiso JPX), Process for producing sintered silicon nitride-base body.
  13. Buljan Sergej-Tomislav (Acton MA), Si3N4 containing intergranular phase nucleating agent and method.
  14. Wei, George C., Silicon carbide whisker reinforced ceramic composites and method for making same.
  15. Smith J. Thomas (Acton MA) Quackenbush Carr Lane W. (Acton MA) Moschetti Anthony P. (Acton MA) Lingertat Helmut (Dorchester MA), Silicon nitride based ceramics and method.
  16. Fukuhara Mikio (Yokohama JPX) Maekawa Yoshitaka (Sagamihara JPX), Silicon nitride sintered body and method for preparing the same.
  17. Matsui Minoru (Nagoya JPX), Silicon nitride sintered body and method of producing the same.
  18. Ishii Takashi (Tokyo JA) Nishida Katsutoshi (Yokohama JA) Komatsu Michiyasu (Yokohama JA) Tsuge Akihiko (Yokohama JA), Silicon nitride-based sintered material and method for manufacturing the same.
  19. Komatsu Michiyasu (Yokohama JPX) Tsuge Akihiko (Yokohama JPX) Ota Hiroyasu (Yokohama JPX), Sintered body of ceramics and preparation thereof.
  20. Masaki Hideyuki (Nagoya JA), Sintered silicon nitride base ceramic and said ceramic.
  21. Oda Isao (Nagoya JPX) Kaneno Masayuki (Tokoname JPX), Sintered silicon nitride body and a method of producing the same.
  22. Prochazka ; Svante ; Greskovich ; Charles D. ; Charles ; Richard J. ; G iddings ; Robert A., Sintering of silicon nitride using Be additive.
  23. Samanta Shyam K. (Ypsilanti MI) Subramanian Krishnamoorthy (Inkster MI) Ezis Andre (Grosse Ile MI), ethod of using Si3N4.Y2O3.SiO2 ceramic system for.

이 특허를 인용한 특허 (8)

  1. Pyzik Aleksander J. (Midland MI), Cermet or ceramic/glass composites including self-reinforced b 상세보기
  • Suzuki, Yoshio; Tagawa, Kouji; Nakagaki, Kunihiko, Gas sensor.
  • Suzuki, Yoshio; Tagawa, Kouji; Nakagaki, Kunihiko, Method for producing gas sensor.
  • Pyzik Aleksander J. (Midland MI) Schwarz Douglas B. (Midland MI) Rossow Harold E. (Midland MI) Beaman Donald R. (Midland MI) Pyzik Barbara M. (Midland MI) Dubensky William J. (Traverse City MI), Method of preparing a self-reinforced silicon nitride ceramic of high fracture toughness.
  • Pyzik Aleksander J. (Midland MI) Pyzik Barbara M. (Midland MI), Self-reinforced silicon nitride ceramic body and a method of preparing the same.
  • Tanaka Motoyuki,JPX ; Sogabe Kouichi,JPX, Single crystal of nitride and process for preparing the same.
  • Kashiwagi Tetsuya,JPX ; Matsubara Masaru,JPX, Sintered silicon nitride articles for tools and method of preparation.
  • Hashidate Akitake,JPX ; Sugahara Masami,JPX ; Misawa Keita,JPX, Spindle for machine tools.
  • 문의처: helpdesk@kisti.re.kr전화: 080-969-4114

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