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In this article, a new WC‐ Al2O3 composite tool material is successfully fabricated by vacuum hot‐pressed sintering process with high hardness and flexural strength as well as fracture toughness, which solved the problem of mutual restriction between hardness and toughness of existing WC‐Co composite tool materials. By adding Al2O3, the hardness of WC‐based cemented carbide tool is significantly...
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