Current Situation of the Industrialized Production of Polymer-derived Continuous SiC Fibers

The continuous SiC fibers made in China must be industrialized for meeting the huge demands of high performance composites.The current situation and the properties of polymer-derived continuous SiC fibers are reviewed.Specially,the key technology of the domestic ultra high temperature resistant continuous SiC fibers had been mastered.They can be used at 1 600-1 800 ℃ steadily.That the low oxygen content continuous SiC fibers with 5%-6% oxygen content,can be prepared through two-step sintering program.Their tensile modulus with stable 2.2-2.7 GPa had been improved.The development trends of polymer-derived continuous SiC fibers are clarified.