泽睿碳化硅纤维项目通过验收，航空发动机热端部件材料重大突破

Core Viewpoint - The successful acceptance of the project on in-situ modified XX continuous silicon carbide fiber high-temperature performance by Hunan Boxiang New Materials Co., Ltd. marks a significant milestone in the aerospace new materials sector, enabling the application of advanced composite materials in extreme service environments [1] Company Overview - Hunan Boxiang New Materials Co., Ltd. was established in November 2010 and is based in the Changsha National High-tech Zone, focusing on the research, production, and sales of silicon carbide fibers, PMI foams, absorbing materials, and various composite materials [5] - The subsidiary, Hunan Zerui New Materials Co., Ltd., is the only high-tech enterprise in China that has achieved the industrialization of silicon carbide fibers through doping methods, with a fully controllable production line [5][6] - The company aims to establish itself as the center of the silicon carbide fiber industry in China, offering a wide range of products with the largest production capacity [5] Product Development - The newly developed Zelramic-iBN silicon carbide fiber meets the extreme performance requirements for aerospace engine composite materials, significantly improving high-temperature and creep resistance compared to the previous generation Zelramic fiber [1][3] - The fiber's surface features an in-situ generated BN coating of 50-80 nm, enhancing environmental erosion resistance and high-temperature creep resistance [3][4] - Key performance indicators for Zelramic-iBN fiber include a single filament tensile strength of ≥2.5 GPa and a linear density of 90±10 Tex [2][3] Industry Impact - The breakthrough in silicon carbide fiber technology signifies China's achievement in self-sufficiency in a field historically dominated by Western countries, particularly in critical technologies related to aerospace engine turbine blades [1][5]