| 摘要 |
Methods for making glass-ceramics comprising Al<SUB>2</SUB>O<SUB>3</SUB>, REO, at least one of ZrO<SUB>2 </SUB>or HfO<SUB>2 </SUB>and at least one of Nb<SUB>2</SUB>O<SUB>5 </SUB>or Ta<SUB>2</SUB>O<SUB>5</SUB>. Glass-ceramics according to the present invention can be made, formed as, or converted into glass beads, articles (e.g., plates), fibers, particles, and thin coatings. Some embodiments of glass-ceramic particles according to the present invention can be are particularly useful as abrasive particles.
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