High strength particulate ceramics

Details High strength particulate ceramics High strength particulate ceramics

1989-06-12

1991-08-27

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264125, 501 98, C04B 3510

Patent

active

050431196

ABSTRACT:
This invention relates to new and useful hard, dense, composite materials made from metallic nitrides such as titanium nitride when combined with aluminum oxide and aluminum nitride and a process comprising the steps of: (1) mixing constituent materials using kerosene as a mixing medium; (2) screening, settling, filtering, and washing the mixture in acetone; (3) filling and sealing said materials in a latex mold; (4) isostatically pressing the material into a compacted powder; and (5) sintering the compacted powder in a gas atmosphere at 1,850.degree. C. for two hours.

REFERENCES:
patent: 2872726 (1959-02-01), Goliber
patent: 2973570 (1961-03-01), Nachtman
patent: 2982014 (1961-05-01), Meyer-Hertwig
patent: 3108887 (1963-10-01), Lenie et al.
patent: 3113879 (1963-12-01), Foster et al.
patent: 4789650 (1988-12-01), Friederich et al.

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