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Microstructures and Compressive Properties of Al Matrix Composites Reinforced with Bimodal Hybrid In-Situ Nano-/Micro-Sized TiC Particles

State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun 130025, China
Qingdao Automotive Research Institute of Jilin University, Qingdao 266000, China
Department of Mechanical Engineering, Oakland University, Rochester, MI 48309, USA
State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130012, China
Author to whom correspondence should be addressed.
Materials 2018, 11(8), 1284;
Received: 13 June 2018 / Revised: 18 July 2018 / Accepted: 20 July 2018 / Published: 25 July 2018
(This article belongs to the Section Advanced Composites)
Bimodal hybrid in-situ nano-/micro-size TiC/Al composites were prepared with combustion synthesis of Al-Ti-C system and hot press consolidation. Attempt was made to obtain in-situ bimodal-size TiC particle reinforced dense Al matrix composites by using different carbon sources in the reaction process of hot pressing forming. Microstructure showed that the obtained composites exhibited reasonable bimodal-sized TiC distribution in the matrix and low porosity. With the increasing of the carbon nano tube (CNT) content from 0 to 100 wt. %, the average size of the TiC particles decreases and the compressive strength of the composite increase; while the fracture strain increases first and then decreases. The compressive properties of the bimodal-sized TiC/Al composites, especially the bimodal-sized composite synthesized by Al-Ti-C with 50 wt. % CNTs as carbon source, were improved compared with the composites reinforced with single sized TiC. The strengthening mechanism of the in-situ bimodal-sized particle reinforced aluminum matrix composites was revealed. View Full-Text
Keywords: in-situ; bimodal -sized; combustion synthesis; TiC/Al in-situ; bimodal -sized; combustion synthesis; TiC/Al
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MDPI and ACS Style

Qiu, F.; Tong, H.-T.; Gao, Y.-Y.; Zou, Q.; Dong, B.-X.; Li, Q.; Chu, J.-G.; Chang, F.; Shu, S.-L.; Jiang, Q.-C. Microstructures and Compressive Properties of Al Matrix Composites Reinforced with Bimodal Hybrid In-Situ Nano-/Micro-Sized TiC Particles. Materials 2018, 11, 1284.

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