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叙述了用Ｘ－射线衍射（ＸＲＤ）表征炭－石墨化度的来源，以及炭－石墨材料与炭／炭复合材料的不同点。在一定的实验基础和理论分析上，提出目前ＸＲＤ测试的Ｇ参数表征Ｃ／Ｃ复合材料的石墨化度时不完善，它只反映了Ｃ／Ｃ组分中石墨化度高的组分的石墨化性能。同时提出了两种Ｃ／Ｃ复合材料石墨化度表征的新方法，一是考虑衍射强度的Ｇ参数的修正公式；另一是利用激光拉曼光谱来表征。
The sources of carbon-graphitization are characterized by X-ray diffraction (XRD) and the differences between carbon-graphite materials and carbon / carbon composites are described. In a certain experimental foundation and theoretical analysis, it is proposed that the G parameters of the current XRD test characterize the graphitization degree of C / C composites imperfectly, which only reflects the graphite with high graphitization degree among the C / C components Performance. At the same time, two new methods to characterize graphitization degree of C / C composites are put forward. The first one is the correction formula of G parameter considering the diffraction intensity, the other one is characterized by laser Raman spectroscopy.