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- W2364741465 abstract "Geopolymer matrix composites reinforced by 3.5vol%,4.5vol% and 6.0vol% short carbon fiber were prepared by mixing the pre-prepared performs have a short carbon fiber length in 7 mm with geopolymer resin.The mechanical properties,toughening mechanism and fracture behavior of the obtained composites were studied by three-point flexural test and in-situ scanning electron microscopy.The results show flexural strength and toughness of the composites have an apparent improvement than that of the geopolymer matrix,and the composites show a typical pseudoplasticity behavior.In-situ observations show a lot of microcracks generate and extend homogeneously on the tensile side of the composites.The main crack gradually extends and results in the stress on the minor cracks are released with the maximum load is reached,so the propagation of the minor cracks ceases,and these cracks tend to close to some extent.The propagation and extension of the minor cracks on the tensile side of the composites are the main reasons for the higher work of fracture.With the increase of the modulus of the composites,the extension of the minor cracks is decreased gradually,and deformation ability of the composites is weakened." @default.
- W2364741465 created "2016-06-24" @default.
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- W2364741465 date "2010-01-01" @default.
- W2364741465 modified "2023-09-24" @default.
- W2364741465 title "Strengthening/toughening Mechanisms and Flexural Behavior of Short Carbon Fiber Reinforced Geopolymer Matrix Composites" @default.
- W2364741465 hasPublicationYear "2010" @default.
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