公开(公告)号：US11891728B2

公开(公告)日：2024-02-06

申请号：US16939684

申请日：2020-07-27

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Xiaofei Wang ,  Mingyu Zhu ,  Yulei Li ,  Fuzeng Ren ,  Yusheng Zhao

IPC: C04B35/622 ,  D01F8/18 ,  C04B35/56 ,  C04B35/571 ,  D01D5/00 ,  D01F1/10 ,  D01F9/08

CPC classification number: D01F8/18 ,  C04B35/5622 ,  C04B35/571 ,  C04B35/62277 ,  D01D5/003 ,  D01F1/10 ,  D01F9/08 ,  C04B2235/483 ,  C04B2235/5244 ,  C04B2235/5264

Abstract: Provided are a SiC/ZrC composite fiber, a preparation method and use thereof. The SiC/ZrC composite fiber has a diameter of 10 to 70 μm. The method includes mixing liquid polycarbosilane with a zirconium-containing polymer to obtain a hybrid spinning solution, and then performing electrospinning to obtain a SiC/ZrC composite fiber precursor, crosslinking and thermally treating the SiC/ZrC composite fiber precursor in a protective atmosphere to obtain the SiC/ZrC composite fiber. The SiC/ZrC composite fiber is continuous and uniform, has an adjustable diameter, and thus has outstanding tensile strength and breaking strength and excellent high-temperature resistance. Without use of any organic solvent or spinning agent, the method achieves short process flow and high yield, indicating wide application prospects.