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Patent Searching and Data


Title:
ALUMINA-BASE CERAMIC SINTER AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/1999/021806
Kind Code:
A1
Abstract:
An alumina-base ceramic sinter having high hardness, excellent wear resistance, high strength and high toughness, being suitable particularly for cutting tools and wear-resistant members, and containing 5-70 % by volume of WC having a crystal grain size of 5 $g(m)m or less and 5-70 % by volume of a Ti(C, N) solid solution having a molar C/N ratio ranging from 1/9 to 9/1.

Inventors:
SASAKI TOYOSHIGE (JP)
NAGANO MITSUYOSHI (JP)
OKUMA EIJI (JP)
MITOMI SHINZOU (JP)
UCHIYAMA TETSUO (JP)
INOUE SHIGEO (JP)
TAMURA HARUKA (JP)
Application Number:
PCT/JP1998/004727
Publication Date:
May 06, 1999
Filing Date:
October 19, 1998
Export Citation:
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Assignee:
NIPPON TUNGSTEN (JP)
RIKEN KK (JP)
SASAKI TOYOSHIGE (JP)
NAGANO MITSUYOSHI (JP)
OKUMA EIJI (JP)
MITOMI SHINZOU (JP)
UCHIYAMA TETSUO (JP)
INOUE SHIGEO (JP)
TAMURA HARUKA (JP)
International Classes:
C04B35/117; C04B35/56; (IPC1-7): C04B35/10
Foreign References:
JPH04300241A1992-10-23
JPS5252910A1977-04-28
JPS54161612A1979-12-21
Other References:
See also references of EP 0963962A4
Attorney, Agent or Firm:
Kohori, Susumu (Hakata-Shin-Mitsui Building 1-1, Hakataekimae 1-chome Hakata-ku Fukuoka-shi Fukuoka, JP)
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