Vacuum refining of glassy materials with controlled foaming

Details Vacuum refining of glassy materials with controlled foaming Vacuum refining of glassy materials with controlled foaming

C - Chemistry, Metallurgy

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B

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C03B 5/225 (2006.01) C03B 5/04 (2006.01) C03B 5/12 (2006.01) C03B 5/14 (2006.01) C03B 5/235 (2006.01) C03C 1/00 (2006.01)

Patent

CA 1281190

ABSTRACT Method for refining glassy material where a volume of the molten material is placed in an enclosed vessel with a layer of foam present above the surface of the melt. A subatmospheric pressure is created in the vessel to assist in refining of the material and a region within the vessel but above the melt is heated to accelerate collapsing of the foam in the headspace above the melt.

541879

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