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以 １Ｋ ＰＡＮ基碳纤维为增强体、以调制中温煤沥青为基体前躯体，分别在常压下和高压（４０ＭＰａ、８０ＭＰａ）下制备出了沥青基碳／碳复合材料。借助偏光显微镜对碳／碳复合材料试样进行的微观组织的观察发现，碳基体中既有域组织，也有镶嵌组织，而焦炭主要为细镶嵌组织．偏光试样经过酸液氧化腐蚀处理后，利用电子显微镜对其扫描观察，发现各向异性区域呈现出流线组织特征，流线纹路的疏密与沥青碳化时的压力有关．压力越高，纹路越密实，表明碳层面的取向性也就越好．
Pitch-based carbon / carbon composites were prepared under the normal pressure and high pressure (40MPa, 80MPa) respectively with 1K PAN-based carbon fiber as reinforcement and medium temperature coal tar pitch as precursor. Observation of the microstructure of the carbon / carbon composite samples by polarized light microscope revealed that the carbon matrix has both the domain structure and the mosaic structure, while the coke mainly has the fine mosaic structure. Polarized samples after acid oxidation corrosion treatment, the use of electron microscopy of the scanning observation found anisotropic areas showing streamline organizational characteristics, the flow lines of density and asphalt carbonation pressure. The higher the pressure, the denser lines indicate the better orientation of the carbon layer.