DEVELOPMENT OF SIC-WHISKER-REINFORCED LITHIUM ALUMINOSILICATE MATRIX COMPOSITES BY A MIXED COLLOIDAL PROCESSING ROUTE
SCIE
SCOPUS
- Title
- DEVELOPMENT OF SIC-WHISKER-REINFORCED LITHIUM ALUMINOSILICATE MATRIX COMPOSITES BY A MIXED COLLOIDAL PROCESSING ROUTE
- Authors
- JANG, HM; JUNG, CJ; KIM, KS
- Date Issued
- 1992-10
- Publisher
- AMER CERAMIC SOC
- Abstract
- Based on the surface properties of aqueous silica, boehmite, and SiC-whisker dispersions, SiC-whisker-reinforced lithium aluminosilicate (LAS) matrix composites were fabricated by a mixed colloidal processing route. The composites were characterized by a uniform spatial distribution of SiC whiskers throughout the matrix. The fracture toughness increased from 1.3 MPa.m1/2 for the LAS specimen to 5.0 MPa.m1/2 for the hot-pressed composite (950-degrees-C and 20 MPa for 20 min) containing 20 wt% SiC whisker. The increase in fracture toughness appears to result mainly from crack deflection and crack bridging by whiskers with some additional toughenings from load transfer and whisker pullout.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/22157
- DOI
- 10.1111/j.1151-2916.1992.tb05524.x
- ISSN
- 0002-7820
- Article Type
- Article
- Citation
- JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 75, no. 10, page. 2883 - 2886, 1992-10
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