| 摘要 |
PURPOSE:To obtain a reinforcement for fiber-reinforced metal superior in strength and accuracy of working to conventional ones, by subjecting an aqueous dispersed solution of inorganic binder containing amorphous alumina-silica fiber and organic binder to suction filtration method, to drying and forming, and further to heat treatment so that prescribed coefficient of mullite crystallization is attained. CONSTITUTION:The inorganic binder consisting of amorphous alumina-silica fiber and colloidal alumina or/and colloidal silica and the organic binder are dispersed into water. Then this dispersed solution is subjected to a suction filtration forming process and dried so that amorphous alumina-silica forming body having superior fiber entanglement can be obtained, which then is heat- treated under the conditions of 950-1,400 deg.C and 0.5hr so that coefficient of mullite crystallization in the fiber comes to >=15wt%. As a result, a fiber- reinforced metal which is inexpensive and well comparable in strength as compared with those prepared by using a reinforcement for fiber-reinforced metal in which reinforcement crystallized alumina fiber is used can be obtained. |
