碳／碳复合材料中的立方石墨初探

在研究碳／碳复合材料的晶体结构中发现了非六方石墨结构，通过对比Ｘ射线衍射的特征峰、衍射角、衍射强度及碳／碳复合材料的理论密度，初步证实了非六方石墨即为立方石墨，并说明了立方石墨的存在，可使碳／碳复合材料的石墨化程度提高，致密性增加。

Initial Inquiry of Cubic Graphite in Carbon-carbon Composites

In study of crystal structure of carbon-carbon composites,a new graphite crystal medel-nonhexa-gonalhas been discovered.Through the synthetic contrast of X-ray diffraction peak,diffraction angle,diffraction intensity and theoretical density,nonhexagonal graphite namely cubic graphite has beenpreliminarily confirmed,and the existence of it can improve the graphitization degree and increase thedensi-fication degree of carbon-carbon composites.