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

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State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
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Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Renmin Street NO. 5988, Changchun 130025, China
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Qingdao Automotive Research Institute of Jilin University, Qingdao 266000, China
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Department of Mechanical Engineering, Oakland University, Rochester, MI 48309, USA
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State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130012, China
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Author to whom correspondence should be addressed.
Materials 2018, 11(8), 1284; https://doi.org/10.3390/ma11081284
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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