The Super-Heat™ 676 Series Magnesium Oxide (MgO) Ceramic Crucibles are for use in ultra-high temperature processing of metals, slags, and superconductor compounds to 4,000°F. The ceramic is a high density, fine grain microstructure with an open porosity of less than 1 percent and an average density of 3.45 g/cc or 96 percent of theoretical. The ceramic is an ideal alternative to alumina because it exhibits better chemical resistance. Typical applications for the ceramic include metal alloy processing such as nickel base super-alloys and plutonium and uranium systems, superconductor processing, piezoelectric materials processing, and beta-alumina processing. The crucibles are available in both stock and custom shapes up to 7-in diam by 12-in length with a wall thickness of 0.2 in maximum. Aremco Products, Inc.
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