A ceramic fiber composition for preparing the metal composite added zirconia was prepared. A preform for the metal composite was prepared by precipitating mullite crystals and zirconia crystals. The Alumina silica fiber composition comprises 44-48 wt.% of alumina, 36-40 wt.% of silica, 13-16 wt.% of zirconia, 5 wt.% of metal oxide component such as ferric oxide and nonfibrous component having a particle size of more than 10 um.
