以"二次焦"为填料,煤沥青为黏结剂制备高强炭/石墨材料.考察了压粉平均粒度对材料机械强度、收缩行为以及开孔率的影响.结果表明,用"二次焦"制备的炭/石墨材料具有较高的机械强度,经1300℃热处理后,材料的抗压强度和抗弯强度分别达到310.0MPa和113.7MPa.材料的体积收缩随压粉平均粒度的微细化下降,其开孔率在热处理温度为850℃时达到最大,随着热处理温度的进一步升高,开孔率逐渐下降.
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