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特許 権利維持 The invention aims at overcoming simultaneously the disadvantages that hi gh temperature is required for the progress of solid-phase carbonization and that the use of an expensive raw material is indispensable. A process for t he production of carbides of Group 4A, 5A and 6A transition metals of the pe riodic table and/or double carbides of such transition metals and iron which comprises conducting solid-phase reaction of a ferroalloy containing a grou p 4A, 5A or 6A transition metal and unavoidable impurities with a carbonaceo us material comprising carbon as the main component by co-milling under vacu um or an inert gas atmosphere.