Refractory materials

Details Refractory materials Refractory materials

2005-12-21

2011-11-29

Group, Karl (Department: 1731)

Compositions: ceramic

Ceramic compositions

Yttrium, lanthanide, actinide, or transactinide containing

C501S103000, C501S106000, C501S107000, C065S090000, C065S374110, C065S374130

Reexamination Certificate

active

08067326

ABSTRACT:
Refractory materials are provided which contain P2O5/R2O3constituents, where R is Y, Sc, Er, Lu, Yb, Tm, Ho, Dy, Tb, Gd, or a combination thereof, and/or V2O5/R′2O3constituents where R′ is Y, Sc, one or more rare earth elements, or a combination thereof. In certain embodiments, the refractory materials are xenotime-type materials and/or xenotime-stabilized zircon-type materials. The refractory materials can be used in the manufacture of glass and glass-ceramics. For example, the refractory materials, especially those that contain P2O5/R2O3constituents, can be used as forming structures (“isopipes”) in the fusion process for making flat sheets of glass such as the glass sheets used as substrates in the manufacture of flat panel displays.

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