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中文摘要：
通过对萘系中间相沥青进行预氧化处理,研究族组成变化对石墨化泡沫炭微结构的影响机制。结果表明：中间相沥青经过预氧化处理后,喹啉不溶物含量提高、族组成分布变窄,导致石墨化过程中泡沫炭泡孔的孔壁、韧带处热应力的梯度差异变小,进而使得微裂纹的数量、长度及间隙减小。
英文摘要：
The formation mechanisms of microcracks in graphite foams were investigated by varying the preoxidation temperature of the precursor mesophase pitch. Results indicated that after the mesophase pitch was preoxidized, its quinolineinsoluble component became the dominant fraction, which leads to a decrease in heat stress gradient and as a result, a decrease in the amount, length and width of microcracks.
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