Abrasion resistant articles based on silicon nitride

Details Abrasion resistant articles based on silicon nitride Abrasion resistant articles based on silicon nitride

1981-11-03

1983-06-14

McCarthy, Helen M.

Abrasive tool making process, material, or composition

With inorganic material

51308, 51309, 264 65, 501 87, 501 93, 501 97, 501 98, C04B 3556, C04B 3558

Patent

active

043880851

ABSTRACT:
A composite article and cutting tool are prepared by densification to form a body consisting essentially of particles of hard refractory material uniformly distributed in a matrix consisting essentially of a first phase and a second phase, said first phase consisting essentially of crystalline silicon nitride and said second phase being an intergranular refractory phase comprising silicon nitride and a suitable densification aid comprising magnesium oxide and silicon dioxide.

REFERENCES:
patent: 4099979 (1978-07-01), Lange et al.
patent: 4179301 (1979-12-01), Buljan
patent: 4227842 (1980-10-01), Samanta et al.
patent: 4252768 (1981-02-01), Perkins et al.
patent: 4280850 (1981-07-01), Smith et al.
patent: 4280973 (1981-07-01), Moskowitz

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