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首页> 外文期刊>Composites >Effects of high-temperature heat treatment on the microstructure and mechanical performance of hybrid C-f-SiCf-(Al2O3p) reinforced geopolymer composites
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Effects of high-temperature heat treatment on the microstructure and mechanical performance of hybrid C-f-SiCf-(Al2O3p) reinforced geopolymer composites

机译：高温热处理对杂化C-f-SiCf-（Al2O3p）增强地质聚合物复合材料显微组织和力学性能的影响

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摘要

Hybrid C-f and SiCf reinforced geopolymer composites with Al2O3 particles were successfully fabricated, and the effects of high-temperature treatment on the microstructure evolution and mechanical properties of C-f-SiCf-(Al2O3p)/KGP composites were investigated. Results showed that the amorphous matrix of C-f-SiCf-(Al2O3p)/KGP composites transformed into kalsilite and leucite phase after treated at 1000 and 1200 degrees C, respectively, due to the addition of fibers hindering crystallization of the geopolymer matrix. The addition of Al2O3p was helpful to increase the thermal stability of composites after high-temperature treatment. Flexural strength and Young's modulus of the composites decreased after high temperature treatment and showed the maximum values at 1000 degrees C. All the composites showed a non-catastrophic fracture behavior after heat treated, which was attributed to fiber pulling-out and debonding. (C) 2017 Elsevier Ltd. All rights reserved.
机译：成功地制备了具有Al2O3颗粒的杂化C-f和SiCf增强地质聚合物复合材料，并研究了高温处理对C-f-SiCf-（Al2O3p）/ KGP复合材料的组织演变和力学性能的影响。结果表明，C-f-SiCf-（Al2O3p）/ KGP复合材料的无定形基体分别在1000和1200℃下处理，分别转变成钾铝石和白榴石相，这是由于添加了阻碍地聚合物基体结晶的纤维。 Al2O3p的添加有助于提高高温处理后复合材料的热稳定性。高温处理后，复合材料的抗弯强度和杨氏模量下降，并在1000℃时出现最大值。所有复合材料在热处理后均表现出非灾难性的断裂行为，这归因于纤维的拉拔和剥离。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composites》 |2017年第4期|289-298|共10页
  • 作者

    Yan Shu; He Peigang; Jia Dechang; Wang Jinyan; Duan Xiaoming; Yang Zhihua; Wang Shengjin; Zhou Yu;

  • 作者单位

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

    Harbin Inst Technol, Inst Adv Ceram, Harbin 150080, Peoples R China|Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150080, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Carbon fiber; SiC fiber; Geopolymer; Mechanical properties; High temperature;

    机译：碳纤维;SiC纤维;地聚合物;机械性能;高温;

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