Fracture Behavior of SiC-Whisker-Reinforced Barium Aluminosilicate Glass-Ceramic Matrix Composites

Feng Ye, Jue Ming Yang, Li Tong Zhang, Wan Cheng Zhou, Yu Zhou, Ting Chuan Lei

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27 Scopus citations

Abstract

Barium aluminosilicate (BAS) glass-ceramic composites reinforced with various volume percents (0, 10, 20, 30, 40 vol%) of SiC whiskers were fabricated by hot pressing. The microstructure, the whisker/matrix interface structure, the phase constitution, and the mechanical properties of the composites were systematically studied by means of SEM, TEM, and XRD techniques as well as by indentation crack microfracture and single-edge-notched-beam bend testing. It was demonstrated that the incorporation of SiC whiskers could significantly increase the flexural strength and fracture toughness of BAS glass-ceramic matrices. The addition of active Al2O, to the BAS matrix reduced the amount of SiO2 in the matrix, forming needlelike mullite, which further improved the mechanical properties.

Original languageEnglish
Pages (from-to)881-883
Number of pages3
JournalJournal of the American Ceramic Society
Volume84
Issue number4
DOIs
StatePublished - Apr 2001

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