Particulate-fibre-reinforced glass matrix hybrid composites
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This study extends the concept of hybridization of glass matrix composites to fibre and particulate reinforcements. Hybridization of Nicalon®-glass matrix composites with silicon carbide particulates of mean diameters of 0.77, 1.5 and 6 μm was studied. The microcrack stress, transverse strength and interlaminar strengths improved significantly on hybridization. At the optimum loading of 7.5 wt % for 6 μm particle size the microcrack stress increased by 62%, transverse strength by 650% and interlaminar shear strength by 200%. The ultimate strength declined for this composite by 6%. The decline in ultimate properties was attributed to the damaged graphitic skin at the particle-fibre contact points.
KeywordsSilicon Carbide Shear Strength Contact Point Silicon Carbide
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