SiC fiber reinforced geopolymer composites, part 1: Short SiC fiber
SiC fiber reinforced geopolymer composites, part 1: Short SiC fiber
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SiC 纤维增强地质聚合物复合材料，第 1 部分：短 SiC 纤维
DOI：
10.1016/j.ceramint.2015.12.067
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发表时间：
2016-03
影响因子：
5.2
通讯作者：
Yu Zhou
中科院分区：
文献类型：
--
作者：
Jingkun Yuan;Peigang He;Dechang Jia;Shu Yan;Delong Cai;Lanlan Xu;Zhihua Yang;Xiaoming Duan;Shengjin Wang;Yu Zhou
本文制备了SiC短纤维（SiCsf）增强地质聚合物复合材料（SiCsf/Geopolymer），研究了纤维含量和长度对复合材料微观结构和力学性能的影响。通过原位裂纹扩展实验研究了复合材料的断裂行为和增韧机理。结果表明，SiCsf/地质聚合物复合材料通过机械互锁而非化学界面反应形成弱界面结合状态。SiCsf的存在不仅增强了弯曲强度和断裂功，而且还防止了纯地质聚合物中所见的灾难性失效。当纤维含量为2.0体积%，长度为5 mm时，复合材料的弯曲强度和断裂功最高，分别是纯地质聚合物的5.6倍和63倍。原位裂纹扩展和断口分析表明，复合材料的增韧机制包括微裂纹的形成和扩展、裂纹偏转、纤维脱粘和明显的拔出。
In this paper, short SiC fiber (SiCsf) reinforced geopolymer composites (SiCsf/geopolymer) were prepared and effects of fiber contents and lengths on the microstructure and mechanical properties of the composites were investigated. In-situ crack growth was carried out to study the fracture behavior and toughening mechanism of the composites. The results showed that SiCsf/geopolymer composite developed weak interfacial bonding state through mechanical interlocking rather than chemical interfacial reaction. The presence of SiCsfnot only enhanced both flexural strength and work of fracture, but also prevented the catastrophic failure as seen in neat geopolymer. When fiber content was 2.0 vol% with length of 5 mm, the composite obtained the highest flexural strength and work of fracture, which were 5.6 and 63 times as high as those of neat geopolymer, respectively. In-situ crack growth together with fractographs showed that toughening mechanisms of the composite included formation and propagation of microcracks, crack deflection, fiber debonding and significant pulling-out.
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影响因子：
4.5
作者：
Pernica, D.;Reis, P. N. B.;Louda, P.
通讯作者：
Louda, P.
影响因子：
4.5
作者：
Y. Zhang;Sheng Li;Delong Xu;Baoxiang Wang;G. Xu;D. Yang;Nan Wang;H. Liu;Ya Chao Wang
通讯作者：
Y. Zhang;Sheng Li;Delong Xu;Baoxiang Wang;G. Xu;D. Yang;Nan Wang;H. Liu;Ya Chao Wang
影响因子：
7.4
作者：
M. Saafi;K. Andrew;P. L. Tang;David McGhon;Steven Taylor;Mahubur Rahman;Shangtong Yang;Xiangming Zhou
通讯作者：
M. Saafi;K. Andrew;P. L. Tang;David McGhon;Steven Taylor;Mahubur Rahman;Shangtong Yang;Xiangming Zhou
DOI：
10.1016/j.msea.2008.06.040
发表时间：
2008-12-15
影响因子：
6.4
作者：
Lin, Tiesong;Jia, Dechang;Liang, Defu
通讯作者：
Liang, Defu
影响因子：
13.1
作者：
Bernal, Susan A.;Bejarano, Julian;Rodriguez, Erich D.
通讯作者：
Rodriguez, Erich D.