ES215069A1 - Improvements introduced in the preparation of heat resistant materials (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improvements introduced in the preparation of heat-resistant materials, permanent to oxidation attacks, preferably of electrically resistive materials, said materials being, in addition to the impurities, composed of two components, that is, first of all a silicide component (consisting of silicide or a mixture of silicides or a solid solution of silicides or chemical compounds of silicides) with a melting point higher than 1400º c, silicon being 10 to 70% of its weight and containing the rest at least one metal of a group comprising w, mo, cr, ta, nb, v, hf, zr, and ti, and secondly an oxide component (i.e., an oxide or a mixture of oxides or a solid solution of oxides) or chemical compounds of oxides) with a melting point above 1400ºC and constituting 0.1 to 80% by weight of the refractory material, characterized in that a fraction of 0.5 to 47% by weight of the oxide component consists of silicon when passing another fraction from 1 to 88% of said oxide component contains at least one metal from a group comprising al, be, ce, ca, cr, hf, mg, ti, zr, th, and other metals of the rare earths (Machine-translation by Google Translate, not legally binding)