Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Patent
1992-06-04
1996-11-12
Mai, Ngoclan
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
419 29, 419 32, 419 38, 419 44, 419 49, 419 53, 419 60, B22F 300
Patent
active
055749542
ABSTRACT:
A composite, a sintered product of the composite, and a process for producing products from this composite. The composite has a very high volummetric proportion of TiC, and its remainder of a matrix. The TiC constitutes at least 70% by volume and as much as 95% by volume of the ultimate product. The process includes making a green body which can be handled and is thereafter pre-sintered to form a pre-form. The pre-form is oversized relative to the ultimate product. It is sintered and machined, again oversize. Then it is again sintered and subjected to hot isostatic compression, to assume at least a close approximation to the pre-determined dimension of the product. It is characterized by its light weight, resistance to erosion, and resistance to chemical attack.
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Alloy Technology International Inc.
Mai Ngoclan
Mon Donald D.
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