Boddapati, Srinivasa Rao and Rodel, Jurgen and Jayaram, Vikram (2007) Crack growth resistance (R-curve) behaviour and thermo-physical properties of $Al_2O_3$ particle-reinforced AlN/Al matrix composites. In: Composites Part A: Applied Science and Manufacturing, 38 (3). pp. 1038-1050.
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Abstract
Crack growth resistance behaviour and thermo-physical properties of $Al_2O_3$ particle-reinforced AlN/Al matrix composites have been studied as a function of AlN volume fraction as well as $Al_2O_3$ particle size. The fracture toughness of the composites decreased with increase in vol% AlN and decrease in $Al_2O_3$ particle size. All the composites exhibited R-curve behaviour which has been attributed to crack bridging by the intact metal ligaments behind the crack tip. The Young’s modulus of the composites increased with the vol% of AlN whereas the thermal diffusivity and coefficient of thermal expansion followed a reverse trend. The composites exhibited hysteresis in thermal expansion as a function of temperature and the hysteresis decreased with decrease in metal content of the composite.
Item Type: | Journal Article |
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Publication: | Composites Part A: Applied Science and Manufacturing |
Publisher: | Elsevier |
Additional Information: | Copyright of this article belongs to Elsevier. |
Keywords: | A.Particle-reinforcement;B.Fracture;B.Thermal properties; Liquid metal infiltration |
Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
Date Deposited: | 09 Apr 2007 |
Last Modified: | 19 Sep 2010 04:36 |
URI: | http://eprints.iisc.ac.in/id/eprint/10554 |
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