Patent ID: 7662735
Filing Date: 2010-02-16
Classification: C03B,C03C,C04B,C09K

Abstract:
1. A ceramic fiber comprising glass, the ceramic fiber comprising at least 35 percent by weight Al 2 O 3 , based on the total metal oxide content of the ceramic fiber, a first metal oxide other than Al 2 O 3 , and a second, different metal oxide other than Al 2 O 3 , wherein the ceramic fiber contains not more than 10 percent by weight collectively As 2 O 3 , B 2 O 3 , GeO 2 , P 2 O 5 , SiO 2 , TeO 2 , and V 2 O 5 , based on the total metal oxide content of the ceramic fiber, wherein the glass comprises at least 35 percent by weight Al 2 O 3 , based on the total metal oxide content of the glass, the first metal oxide other than Al 2 O 3 , and the second, different metal oxide other than Al 2 O 3 , wherein the glass contains not more than 10 percent by weight collectively As 2 O 3 , B 2 O 3 , GeO 2 , P 2 O 5 , SiO 2 , TeO 2 , and V 2 O 5 , based on the total weight of the glass, and wherein the first and the second metal oxides are each selected from the group consisting of Y 2 O 3 , REO, TiO 2 , Cr 2 O 3 , CuO, NiO, ZrO 2 , HfO 2 and complex metal oxides thereof.