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Materials 2017, 10(4), 366;

Toughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review

School of Mechanical Electronic and Automobile Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Department of Materials Science and Engineering, 3ME, Delft University of Technology, Mekelweg 2, 2628CD Delft, The Netherlands
Author to whom correspondence should be addressed.
Academic Editor: Jérôme Chevalier
Received: 23 February 2017 / Revised: 21 March 2017 / Accepted: 23 March 2017 / Published: 30 March 2017
(This article belongs to the Special Issue The Failure Micromechanics and Toughening Mechanisms of Materials)
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Advanced engineering and functional ceramics are sensitive to damage cracks, which delay the wide applications of these materials in various fields. Ceramic composites with enhanced fracture toughness may trigger a paradigm for design and application of the brittle components. This paper reviews the toughening mechanisms for the nanolayered MAX phase ceramics. The main toughening mechanisms for these ternary compounds were controlled by particle toughening, phase-transformation toughening and fiber-reinforced toughening, as well as texture toughening. Based on the various toughening mechanisms in MAX phase, models of SiC particles and fibers toughening Ti3SiC2 are established to predict and explain the toughening mechanisms. The modeling work provides insights and guidance to fabricate MAX phase-related composites with optimized microstructures in order to achieve the desired mechanical properties required for harsh application environments. View Full-Text
Keywords: cracks; toughening mechanism; MAX phase; finite element model cracks; toughening mechanism; MAX phase; finite element model

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Chen, X.; Bei, G. Toughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review. Materials 2017, 10, 366.

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