Compositions of matter and their manufacture

Details Compositions of matter and their manufacture Compositions of matter and their manufacture

1985-08-12

1986-11-25

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

75235, 1481261, 148127, 419 24, 420552, 501103, 501105, B22F 300

Patent

active

046248315

ABSTRACT:
A composition of matter comprises aluminium or aluminium alloy, such as LM 13, into which has been incorporated between 5 and 50% by volume of zirconia. The zirconia may be in the form of fibres or of powder. As compared with the aluminium alloy, this reduces the thermal conductivity and coefficient of expansion, and provides a material which has, particularly at elevated temperatures above 300.degree. C., improved tensile strength, compressive strength, and hardness and reduced elongation.

REFERENCES:
patent: 3625676 (1971-12-01), Perfect
patent: 3728108 (1973-04-01), Sifferlen et al.

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