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Reprinted with permission of the Coors Ceramics Company
The development of new ceramic materials is helping to meet the growing demand in industrial and laboratory applications. Coors ceramic components are harder, lighter, and more resistant to heat, corrosion, and wear than steel counterparts. Coors ceramic demonstrates excellent dimensional stability and can be manufactured to meet precise tolerances. Its strength and temperature resistance, combined with high resistivity and dielectric strength, make it an attractive alternative.
Chemical-Porcelain has excellent thermal-shock resistance. The chemical-porcelain used to make the products featured has a fusion point of 1670°C and a softening point of 1400°C.
High-Alumina Ceramicware made of 99.8%-pure aluminum oxide, is frequently selected by metallurgists and chemists. It is useful for applications requiring high-temperature analysis with contaminant-free results. This highly refractory labware is meant for use in reducing and oxidizing atmospheres. It can be used with refractory metals such as molybdenum, platinum, rhodium, tungsten, tantalum and iridium. It is inert in hydrogen and carbonaceous atmospheres and offers high resistance to alkalies and other fluxes at low temperatures.
High-alumina chemical tests conducted by Coors Ceramics Company using crucibles weighing approximately 32g yielded the following results:
Chemical test Temp Time Wt loss Hot conc. H2SO4 100°C 4 hrs ~6 x 10-4% Hot 10% NaOH 100°C 4 hrs ~9 x 10-4% Hot 50% H3PO4 90°C 4 hrs ~0.16% Typical Ceramic Characteristics Summary
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1150°C (2100°F) glazed
gradually increasing to
4.69 x 10-6 at 1000°C
intended for use in oxidizing
and reducing atmospheres.
Very corrosion resistant.