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A white powder; hexagonal; BeO. Used in the preparation of beryllium
compounds and in ceramics and refractories. Melting point, 2,570 degrees
C; and sp gr, 3.02. Bodies high in BeO have extremely high thermal
conductivity (in the range of metals) and also possess high mechanical
strength. Used in nuclear reactors because of its refractoriness, high
thermal conductivity, and ability to act as a moderator for fast neutrons,
reducing them to thermal speeds. Beryllia ceramics are used for electronic
components and for crucibles for melting uranium and thorium.
Syn: bromellite
Source:
Dictionary of Mining, Mineral, and Related Terms
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