Preparation of SiBCN Microtubes from Melt-Spinnable Polymers
SiBCN microtubes were prepared for the first time by spinning a low molecular weight preceramic polymers of boron-modified polyvinylsilazanes into green fibers ~30 m in diameter which were subsequently thermolyzed under a nitrogen atmosphere. Hollow SiBCN ceramic fibers black colored, of flexible form, ~20 m in diameter and 0.8GPa in tensile strength were produced.
Wei Pan and Jianghong Gong
L. Gottardo et al., "Preparation of SiBCN Microtubes from Melt-Spinnable Polymers", Key Engineering Materials, Vols. 368-372, pp. 926-928, 2008