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生沥青焦颗粒尺寸对自烧结石墨块体微观结构和性能的影响

赵红超 何钊 郭晓慧 连鹏飞 刘占军

赵红超, 何钊, 郭晓慧, 连鹏飞, 刘占军. 生沥青焦颗粒尺寸对自烧结石墨块体微观结构和性能的影响[J]. 新型炭材料, 2020, 35(2): 184-192. doi: 10.1016/S1872-5805(20)60483-8
引用本文: 赵红超, 何钊, 郭晓慧, 连鹏飞, 刘占军. 生沥青焦颗粒尺寸对自烧结石墨块体微观结构和性能的影响[J]. 新型炭材料, 2020, 35(2): 184-192. doi: 10.1016/S1872-5805(20)60483-8
ZHAO Hong-chao, HE Zhao, GUO Xiao-hui, LIAN Peng-fei, LIU Zhan-jun. Effect of the average grain size of green pitch coke on the microstructure and properties of self-sintered graphite blocks[J]. NEW CARBON MATERIALS, 2020, 35(2): 184-192. doi: 10.1016/S1872-5805(20)60483-8
Citation: ZHAO Hong-chao, HE Zhao, GUO Xiao-hui, LIAN Peng-fei, LIU Zhan-jun. Effect of the average grain size of green pitch coke on the microstructure and properties of self-sintered graphite blocks[J]. NEW CARBON MATERIALS, 2020, 35(2): 184-192. doi: 10.1016/S1872-5805(20)60483-8

生沥青焦颗粒尺寸对自烧结石墨块体微观结构和性能的影响

doi: 10.1016/S1872-5805(20)60483-8
基金项目: 国家自然科学基金(51572274,91860116).
详细信息
    作者简介:

    赵红超,助理研究员.E-mail:zhaohongchao107@126.com

    通讯作者:

    何钊,博士.E-mail:hezhaomse@163.com;刘占军,研究员.E-mail:zjliu03@sxicc.ac.cn

  • 中图分类号: TQ127.1+1

Effect of the average grain size of green pitch coke on the microstructure and properties of self-sintered graphite blocks

Funds: National Natural Science Foundation of China (51572274, 91860116).
  • 摘要: 由不同颗粒尺寸(5.1、3.1和1.9 μm)的生沥青焦制得3种自烧结石墨块体,并对其进行系统的分析表征。石墨块体的结构和性能随着生焦颗粒尺寸的减小呈现出规律性变化。石墨块体的密度、机械强度、肖氏硬度和热膨胀系数随着生焦颗粒尺寸的减小而提高,石墨化度、晶粒尺寸、热导率、平均孔径和孔隙率随着生焦平颗粒尺寸的减小而降低。石墨块体的平均孔径均在纳米尺度,能有效地阻隔熔盐浸渗而应用于熔盐反应堆中。此外,石墨块体因其密实结构和相对优异的机械性能,在密封领域也有较大的应用潜力。自烧结石墨块体的微观结构和性能与生焦颗粒尺寸关系密切,并讨论了生焦颗粒尺寸对石墨块体微观结构/性能的影响及石墨块体微观结构与性能间的关系。
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出版历程
  • 收稿日期:  2020-01-03
  • 录用日期:  2020-04-28
  • 修回日期:  2020-04-01
  • 刊出日期:  2020-04-28

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