C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/36, 117/48.5
C04B 35/10 (2006.01) C04B 35/06 (2006.01) C04B 35/111 (2006.01) C04B 35/44 (2006.01) C04B 35/80 (2006.01) C04B 41/87 (2006.01)
Patent
CA 2028908
A high alumina ceramic composition has controlled small amounts of MgO and CaO. When refractories made from the composition are fired, the alumina and MgO react to form spinal. the CaO promotes such reaction while minimizing undesirable expansion, and results in a refractory having significantly improved hot strength and other desirable physical properties.
Fetherstonhaugh & Co.
North American Refractories Co.
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