Magnesia Refractories

Magnesia Refractories A magnesia refractory is defined by the American Society for Testing and Materials (ASTM) as ‘a dead-burned refractory material consisting predominantly of crystalline magnesium oxide’. In addition, ASTM defines ‘dead-burned’ as “the state of a basic refractory material resulting from a heat treatment that yields a product resistant to atmospheric hydration or recombination …

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