CAJ | 학술논문

采用XRD法测量和表征石墨化度，以数种结构组成各异的二维或准二维现役航空刹车用炭/炭复合材料为对象，研究了石墨化度随石墨化处理温度的变化规律，推算出了材料的最终石墨化处理温度，并从材料的结构组成方面对其可石墨化性能特征进行了分析、比较。结果表明：在石墨化度-石墨化处理温度关系曲线上，按温度划分，存在着两个明显不同的区段：近似于直线的快速升高段（AB段）和高温时近似于水平线的缓慢升高段（CD段）。当基体中含有沥青或树脂浸渍炭时，材料的最终石墨化处理温度大多处于AB段，温度为2*!000～2*!200 ℃之间；当基体全部为CVD炭时，材料的最终石墨化处理温度大多处于CD段，温度可能超过2*!800 ℃。本文所研究的复合材料中的CVD炭的结构皆为RL结构。
채용XRD법측량화표정석묵화도，이수충결구조성각이적이유혹준이유현역항공찰차용탄/탄복합재료위대상，연구료석묵화도수석묵화처리온도적변화규률，추산출료재료적최종석묵화처리온도，병종재료적결구조성방면대기가석묵화성능특정진행료분석、비교。결과표명：재석묵화도-석묵화처리온도관계곡선상，안온도화분，존재착량개명현불동적구단：근사우직선적쾌속승고단（AB단）화고온시근사우수평선적완만승고단（CD단）。당기체중함유력청혹수지침지탄시，재료적최종석묵화처리온도대다처우AB단，온도위2*!000～2*!200 ℃지간；당기체전부위CVD탄시，재료적최종석묵화처리온도대다처우CD단，온도가능초과2*!800 ℃。본문소연구적복합재료중적CVD탄적결구개위RL결구。
The dependence of graphitization degree (g) on HTT (heat treatment temperature) of 8 types of 2D or quasi 2D C/C composites used as braking materials on aircrafts and different in microstructure have been studied using XRD, to characterize their graphitization degrees. It is found that there are two different temperature ranges in the g-HTT dependence curve, AB range increasing near linearly with increasing of HTT and CD range increasing near horizontally with HTT. When the matrix contains pitch carbons or resin corbons, HTT is usually in the AB range, i.e 2*!000～2*!200 ℃； when the matrix isonly CVD carbons, HTT is in the CD range, i.e. probably exceeding 2*!800 ℃, All CVD carbons in the composites have RL structure.