Combustion-synthesis process for making friction materials

Details Combustion-synthesis process for making friction materials Combustion-synthesis process for making friction materials

1990-03-26

1992-09-08

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 80, C04B 3332

Patent

active

051456192

ABSTRACT:
A process in which a mixture containing aluminum, iron, and one or more metallic oxides is used. This mixture is formed into a shaped body, the shaped body is preheated to a temperature of from about 50 to about 400 degrees centigrade, and the preheated material is then ignited, causing a highly-exothermic reaction to occur. During this reaction, aluminum reacts with metal oxide(s) and the green body is densified.

REFERENCES:
patent: 4217948 (1980-08-01), Merzhanov et al.
patent: 4642218 (1987-02-01), Rice
patent: 4889745 (1989-12-01), Sata
patent: 4902457 (1990-02-01), Wada et al.

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