Ceramic fibers comprising glass, and composites comprising such fibers. The glass comprises at least 35 percent by weight Al2O3, based on the total metal oxide content of the glass, a first metal oxide other than Al2O3, and a second, different metal oxide other than Al2O3. The glass contains not more...http://www.google.com.au/patents/US7662735?utm_source=gb-gplus-sharePatent US7662735 - Ceramic fibers and composites comprising same