《Table 1 The characteristic parameters of the MPCFs treated at different HTTs.》

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《高温处理对中间相沥青基炭纤维结构与热导率的影响（英文）》

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To investigate further the effects of HTT on the structure of M PCFs，XRD and Raman spectrum examination w ere carried out and the corresponding results are show n in Fig.5 and Table 1.For XRD analysis，the interlamellar spacing（d002）of graphite crystals and crystal packing thickness（Lc）are calculated by the values of（002）peak in the equatorial scan-ning graphs，w hereas the w idth of basal plane of graphite crystals（La）is calculated according to the values of（101）peak in the meridian scanning graphs.The azimuth angle（Z）means the coherence extent of grow th direction of graphite crystals in inner carbon materials.The graphitization degree（g）can be calculated by the follow ing equation:g=（3.440-d）/0.086.Fig.4（a）shows the（002）peak scanning graphs of MPCFs with different HTTs.With increasing the HTT from 1 000 to 3 000℃，the（002）peak shifts to right side，and the（002）peak profiles become sharper and more symmetrical.The（002）peak characterizes the graphitization degree，and a right shift of a symmetrical（002）peak means a small interlayer spacing value（d002），and therefore a high graphitization degree.