Stock material or miscellaneous articles – All metal or with adjacent metals – Having composition – density – or hardness gradient
Patent
1998-02-27
2000-10-24
Lin, Kuang Y.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having composition, density, or hardness gradient
164 97, 164114, B22D 1914, B22D 2500
Patent
active
061364525
ABSTRACT:
A method through which we can synthesize Functionally Graded Materials (FGM). Such materials are made so that their composition changes gradually from one point to another, such as in the example of gradient index (GRIN) optical components. A novel aspect of our method is the imposition of a centrifugal force during the combustion synthesis of composite materials for structural, optical, or electronic applications, with the result that the composition and the particle size of the metallic (or ceramic) component changes continuously and across the thickness of the product. We have prepared such FGM as ZrO.sub.2 +Ni, ZrO.sub.2 +Cu and Al.sub.2 O.sub.3 +Cu.
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Lai Wei Nong
McCoy Benjamin J.
Munir Zuhair A.
Risbud Subhash H.
Lin Kuang Y.
The Regents of the University of California
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