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Preparation and Characterization of Fiber‐Reinforced Aluminum Phosphate/Silica Composites with Interpenetrating Phase Structures
Author(s) -
Deng Shifeng,
Wang Canfeng,
Zhou Yan,
Huang Farong,
Du Lei
Publication year - 2011
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2010.02496.x
Subject(s) - materials science , flexural strength , composite material , microstructure , curing (chemistry) , scanning electron microscope , fiber , three point flexural test , phase (matter) , chemistry , organic chemistry
Glass fiber‐reinforced aluminum phosphate (AP)/silica composites were prepared by hydrolyzing tetraethylorthosilicate (TEOS) in AP binder. The composites were hot pressed and cured at a temperature range between 140°C and 200°C with Al 2 O 3 as a curing agent. Microstructures of the prepared composites were examined using scanning electron microscopy. Flexural properties of the composites were investigated by a three‐point bending test. It was found that the flexural strength of the prepared composites was significantly increased when appropriate concentrations of TEOS were used for hydrolysis. A microstructure study demonstrated that the improvement in flexural strength was due to the formation of an interpenetrating network structure between the two inorganic phases.