期刊
MATERIALS & DESIGN
卷 85, 期 -, 页码 127-134出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2015.06.136
关键词
Ceramic matrix composites; Carbon fibre; Sintering; Strength; Zirconium diboride
ZrB2-continuous C fibre composites were prepared by vacuum-bag infiltration and hot pressing, using 1D fabric carbon preforms from different commercial products. Sintering behaviour and microstructural features such as secondary phases and matrix/fibre interface were analysed. The infiltration process allowed the overall fibre content to be increased up to 70 vol.%, whilst the matrix densification was enabled by sintering aids. Due to presence of residual porosity, the degree of chemical interaction at the fibre/matrix interface was limited and this resulted in an easier pull out in the fractured surfaces, even in absence of fibre protective coating. The composites exhibited a damage tolerant behaviour. (C) 2015 Elsevier B.V. All rights reserved.
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