Fused zirconia refractory materials having high-temperature...

Details Fused zirconia refractory materials having high-temperature... Fused zirconia refractory materials having high-temperature...

C - Chemistry, Metallurgy

04

B

C04B 35/48 (2006.01) C04B 35/484 (2006.01)

Patent

CA 2044041

ABSTRACT OF THE DISCLOSURE Fused zirconia refractory materials having high-temperature resistance and corrosion resistance which includes 1 - 30 wt% of calcia and 0.05 - 2 wt% of yttria or rare earth minerals including yttria as a stabilizer of zirconia, which are produced by the process comprising adding and mixing calcia and yttria or rare earth minerals including yttria to zirconia materials as a stabilizer, fusing the mixed materials in an electric arc furnace, cooling slowly the fused materials to obtain an ingot, crushing the ingot to particles and oxidizing and annealing the particles.

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