Affiliation:
1. Chinese Academy of Sciences
Abstract
Active researches have been conducted to seek the application of ceramics as structural
components. However, the lack of damage tolerance ability has been a critical problem. Laminated
composites as one of the main way for improving the brittleness of ceramics are getting more and
more attention from the biomimetic point of view.
In the present paper, three laminated composites, SiC/TiC, Al2O3/Ni and ZrB2-SiC/ZrB2 with
intentionally introduced surface compressive stress were presented. The finite element method
(FEM) was used to simulation the stress distribution and to optimize the layered structure for the
development of more reliable materials. Based on FEM analysis, the laminated structure was
realized by aqueous tape casting and hot pressing. The dependence of mechanical properties
(fracture strength and toughness) on the structural parameter (the composition of layers, the
thickness ratio between layers, number of layers) was investigated. The calculated mechanical
properties were in agreement with the tested ones to some extent.
Publisher
Trans Tech Publications Ltd
Cited by
1 articles.
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