A manufacturing method by which alumina-silica based fibers excellent in mechanical strength can be readily and securely obtained. The method obtains precursor fibers as a material by using an alumina-silica based fiber spinning stock solution for use in an inorganic salt method. Next, the precursor...http://www.google.es/patents/US20090075812?utm_source=gb-gplus-sharePatente US20090075812 - ALUMINA-SILICA-BASED FIBER, CERAMIC FIBER, CERAMIC FIBER COMPLEX, RETAINING SEAL MATERIAL, PRODUCTION METHOD THEREOF, AND ALUMINA FIBER COMPLEX PRODUCTION METHOD
