FUSED CERAMIC PRODUCT

摘要

Process for manufacturing a product, comprising the following successive steps: a) mixing raw materials to form a starting feedstock, b) melting the starting feedstock so as to form a molten liquid, c) solidifying the molten liquid so as to obtain a fused product comprising crystals linked by a glassy phase, and d) crystallization heat treatment of the glassy phase of said fused product, in which the composition of the starting feedstock is adapted in order to manufacture a product having the following chemical composition, as weight percentages based on the oxides, and for a total of 100%: 40% = (ZrO2 + HfO2) = 94%, 6% 2 2O3, 0% = Al2O3, 2% = SiO2, 0% = MgO, 0% = TiO2, and other oxides = 1%. Use of the product obtained as a grinding agent, an agent for dispersing in a wet medium, a surface treatment agent, a supporting agent or a heat-exchange agent.