Hard material

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Hard materials are materials that are particularly hard .

It is mostly about the formation of intermetallic phases , often metal carbides , more rarely also ceramics , in which there is a high proportion of metallic bond character . Hard materials are practically impossible to process in their pure form and are therefore mostly used in metal matrix composite materials as aggregates in a metallic matrix, often cobalt . These composite materials are then classified as hard metals or cermets .

Important hard materials