Invention Grant
US07829479B2 Fiber-reinforced heat-resistant sound-absorbing material and process for producing the same 有权
纤维增强耐热吸音材料及其制造方法

Fiber-reinforced heat-resistant sound-absorbing material and process for producing the same
Abstract:
A production process which comprises a preform formation step of forming a fiber preform made of silicon carbide short fibers having heat resistance of 1000° C. or greater; a sol-gel preparation step of preparing a sol-gel solution containing a heat resistant compound having heat resistance of 1000° C. or greater; an impregnation-drying-calcination step of impregnating the fiber preform with the sol-gel solution, followed by drying and calcining; and a crystallization step of crystallizing the fiber preform after impregnation, drying and calcination.
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