Hafnium is used in tungsten wire manufacturing, adding elements to tungsten, platinum, silver alloys to make hard alloys and heat resistant alloys.Carbonization (HfC) of compounds added to carbon can be used as carbide additives due to hardness and melting point;4TaCHfC(low oxidation) has a melting point of about 4215°C, which is a very high melting point compound among known materials.
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