Paper Title:
Bridging Toughening Mechanism of Fiber Eutectics and Transformation Particles Composite Ceramic
  Abstract

Based on the microstructure of fiber eutectics and transformation particles composite ceramic, the bridging stress of the fiber eutectic is determined. The bridging load that makes crack closure to reduce the stress concentration of crack tip is calculated. The energy dissipative value of the bridging load is obtained by considering the random orientation of the fiber eutectic. Finally, according to the relationship of the fracture toughness and energy dissipation, the bridging toughening mechanism is established. Analysis shows that the bridging toughening value is enhanced with the increasing of volume fraction and fracture strength of fiber eutectic, and enhanced with the decreasing of interface bonding strength and length-diameter ratio.

  Info
Periodical
Edited by
Yiwang Bao, Li Tian and Jianghong Gong
Pages
178-181
DOI
10.4028/www.scientific.net/AMR.177.178
Citation
X. H. Ni, X. Q. Liu, B. H. Han, G. H. Zhong, T. Sun, "Bridging Toughening Mechanism of Fiber Eutectics and Transformation Particles Composite Ceramic", Advanced Materials Research, Vol. 177, pp. 178-181, 2011
Online since
December 2010
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