Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1982-05-20
1984-01-03
Czaja, Donald E.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51308, 51309, 428404, 501 98, B24D 1100
Patent
active
044240660
ABSTRACT:
Coated abrasion resistant composite ceramic cutting tools comprise a composite substrate body consisting essentially of a particulate material selected from the group consisting of the refractory metal carbides, nitrides, carbonitrides and combinations thereof uniformly distributed in a matrix, coated with at least one adherent coating layer of alumina. 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.
REFERENCES:
patent: 3914473 (1975-10-01), Hale
patent: 3967035 (1976-06-01), Hale
patent: 4019873 (1977-04-01), Reiter
patent: 4203733 (1980-05-01), Janaka et al.
patent: 4249913 (1981-02-01), Johnson et al.
patent: 4252768 (1981-02-01), Perkins et al.
Buljan Sergej-Tomislav
Sarin Vinod K.
Czaja Donald E.
Ericson Ivan L.
GTE Laboratories Incorporated
Janssen Jerry F.
Thompson W.
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