Composite ceramic cutting tool and process for making same

Details Composite ceramic cutting tool and process for making same Composite ceramic cutting tool and process for making same

C - Chemistry, Metallurgy

04

B

261/1, 25/140

C04B 35/56 (2006.01) B23B 27/14 (2006.01) C04B 35/58 (2006.01) C04B 35/593 (2006.01) C04B 35/597 (2006.01)

Patent

CA 1193286

Abstract: Abrasion resistant composite cutting tools comprise a particulate material selected from the group consisting of the refractory metal carbides, nitrides, carbonitrides and combinations thereof uniformly distributed in a matrix. The particulate material is of an average particle size ranging between about 0.5 microns to about 20 microns and comprises from about 5 to about 60 volume percent of the composite cutting tool The matrix consists essentially of a modified silicon aluminum oxynitride having about 2 to about 25 volume percent of a modifier selected from the oxides of silicon, yttrium, magnesium, hafnium, zirconium, beryllium, the lanthanides and combinations thereof and a process for making the same.

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