Word: corundum
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Dates: during 1970-1979
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French industry is beginning to agree In a recent test for an electronics manufacturer, the furnace fused several tons of bauxite and ceramics to produce high-voltage insulators of unmatched purity The oven could easily fuse other highly heat-resistant materials: quartz crystals for radio transmitters, corundum for industrial grinding stones and zircon parts for nuclear reactors. It could also be used in experiments to develop new space-age alloys, such as special tungsten or cobalt steels, and even materials to withstand the searing heat of a nuclear blast...