Patent ID: 7919039
Filing Date: 2011-04-05
Classification: C04B,Y10T

Abstract:
1. A process for the preparation of an oxide-ceramic fiber composite material comprising the steps of: a) infiltrating oxide-ceramic continuous fibers with a binder-free slip to a defined fiber content value, said binder-free slip containing a sinter-active oxide-ceramic powder having at least 10% of both a first and second grain size fraction with different peaks in the grain size distribution, wherein said first grain size fraction has a mean grain size weighted according to volume proportions of up to 1 μm, and said second grain size fraction has a mean grain size weighted according to volume proportions of at least 2 μm; b) drying a green body obtained according to step a); and c) sintering the green body to form the oxide-ceramic fiber composite material with a volume fiber content within a range of from about 5 to 15% by volume.