Functionally gradient material and method for producing the same

Details Functionally gradient material and method for producing the same Functionally gradient material and method for producing the same

Filed on

1998-03-20

Date issued

2000-03-14

Examiner

Speer, Timothy

Patent Class

Stock material or miscellaneous articles

SubClass

All metal or with adjacent metals

SubSubClass

Having composition, density, or hardness gradient

Other Related Categories

428212, 428469, 428472, 257675, 257677, 257703, 361708, 361709, B22D 2500, B22F 300, B32B 1504

Type

Patent

Status

active

Patent number

060370661

Description

ABSTRACT:
A functionally gradient material having desired characteristics without having any joining section is efficiently obtained by means of integration effected by a sintering treatment, the functionally gradient material comprising a metal part composition containing predetermined components based on a basic composition of tungsten and copper and a ceramic part composition containing predetermined components based on a basic composition of aluminum nitride and aluminum. Therefore, the metal and the ceramic are integrated into one unit without providing any joining section to give a high joining reliability and high thermal conductivity.

REFERENCES:
patent: 4783368 (1988-11-01), Yamamoto et al.
patent: 5045400 (1991-09-01), Esashi
patent: 5277942 (1994-01-01), Ikegaya et al.
patent: 5303763 (1994-04-01), Aghajanian et al.
patent: 5574314 (1996-11-01), Okada et al.
patent: 5637406 (1997-06-01), Asai et al.
patent: 5744411 (1998-04-01), Zhao et al.
patent: 5763093 (1998-06-01), Casey et al.
patent: 5834840 (1998-11-01), Robbins et al.
patent: 5874175 (1999-02-01), Li

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