Based on SAXS theory and fractal theory, we obtain the calculating method and calculating formulas of the pore size, pore volume percentage and the fractal of pore surface in PAN - based carbon fiber.

基于小角X射线散射理论，利用逐级切线法和材料分形理论中的散射强度法，分别计算PAN基炭纤维内微孔大小、体积分数及微孔表面分形维数。

youdao

The relationship between the fracture energy and the cracking space and the cracking wide and the volume percentage of fiber is investigated and discussed.

研究、讨论了聚丙烯纤维体积率与这种材料的断裂能、平均裂纹间距和平均裂纹宽度间的关系。

youdao