Recently, high-strength silicon carbide ceramic fiber was successfully rolled off the line at NBZX Ceramic Material Technology Company. After spot-checking and sample sending, the tensile strength of the fiber at room temperature is as high as 3.3GPa, which can reach the tensile strength of ordinary carbon fiber.
Silicon carbide ceramic fiber is a new type of material with high temperature resistance and oxidation resistance, which is widely used in cutting-edge fields such as aerospace, nuclear industry and military equipment. Due to the strict blockade of technology, equipment and products abroad, my country can only take the road of independent innovation and carry out the industrial development of domestic silicon carbide fibers.
In November last year, NBZX and the Institute of Process Engineering of the Chinese Academy of Sciences signed a strategic cooperation agreement to introduce two core patents of "polymetallic carbosilane and its preparation method and application" and "multiphase ceramic fiber and its preparation method" with exclusive patent authorization. After intensive equipment installation, commissioning and trial production, the company and the experts of the Chinese Academy of Sciences worked together. Less than half a year later, Zhongxing New Materials completed a series of technological processes such as polymer polymerization, precursor modulation, melt spinning and ceramicization in the factory. .
This high-strength silicon carbide ceramic fiber technology breaks the monopoly of related Japanese technology and paves the way for the development of strategic new materials such as third-generation ceramic fibers, wave-absorbing fibers, neutron absorption and radiation protection fibers with completely independent intellectual property rights in China Off the road. In the future, the material will "show its abilities" in the fields of thermal structure enhancement, electromagnetic waves and nuclear radiation protection. . .