Ceramics comprising AI2O3, Y2O3, ZrO2 and/or HfO2, and Nb2O5 and/or Ta2O5 and methods of making the same
Assignee3M Innovative Properties Company
InventorsAnatoly Z. Rosenflanz, Craig R. Schardt
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Abstract
Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the present invention can be made, formed as, or converted into optical waveguides, glass beads, articles (e.g., plates), fibers, particles (e.g., abrasive particles), and thin coatings.
Claims24
Glass-ceramic collectively comprising at least 70 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, and the glass containing not more than 30 percent by weight collectively As2O3, B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5, based on the total weight of the glass-ceramic.
Dependencies are inferred from the claim text.