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A new method of high-gravity combustion synthesis and in situ melt infiltration is reported for preparing cemented carbides, where hot nickel melt is in situ synthesized from a highly exothermic combustion reaction and then infiltrated into tungsten carbide powder compacts. The as-prepared sample showed a homogeneous microstructure, and its relative density, hardness and flexural strength were 94...
Combustion synthesis is widely used for preparing various refractory and hard materials, including alloys, intermetallics, ceramics, and cermets. The unique reaction condition in combustion synthesis with extremely-high temperature and fast heating/cooling rate offers the products interesting microstructures and superior mechanical properties. In comparison with conventional powder metallurgy approaches,...
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