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Crystals 2017, 7(7), 205; doi:10.3390/cryst7070205

Shape-Controlled TiCx Particles Fabricated by Combustion Synthesis in the Cu-Ti-C System

1
Key Laboratory of Automobile Materials of Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun 130025, China
2
COSCO Logistics (Beijing) Materials Co., Ltd, No. 3 Maizidian West Road, Beijing 100016, China
*
Author to whom correspondence should be addressed.
Academic Editor: Roberto Comparelli
Received: 17 May 2017 / Revised: 23 June 2017 / Accepted: 4 July 2017 / Published: 6 July 2017
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Abstract

TiCx particle-reinforced Cu-matrix composites were prepared in the Cu-Ti-C system by thermal explosion and hot press. Extracted TiCx particles with various shapes of in situ TiCx particles in the Cu-Ti-C system were observed through the Field Emission Scanning Electron Microscope (FESEM). It was found that octahedral and close-to-spherical, spherical or cubic TiCx could be fabricated by changing the C/Ti molar ratio and Cu content. Then, the effect of the C/Ti molar ratio and constituent element concentrations on the shape of in situ TiCx particles was determined: the shape of TiCx particles is octahedral at a C/Ti ratio of 0.4–0.6 with the presence of 70 vol% Cu; or spherical and close-to-spherical at 0.8–1.0 with the presence of 70 vol% Cu; or cubic at C/Ti ratios ≥1.0 with the presence of Cu from 80 vol%–90 vol% and even at C/Ti ratios >1.0 with the presence of 70 vol% Cu. The shape-controlled synthesis of TiCx particles in the Cu-Ti-C system is realized. View Full-Text
Keywords: in situ TiCx; molar ratio; shape-controlled; thermal explosion in situ TiCx; molar ratio; shape-controlled; thermal explosion
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MDPI and ACS Style

Zhang, D.; Liu, H.; Sun, L.; Bai, F.; Wang, Y.; Wang, J. Shape-Controlled TiCx Particles Fabricated by Combustion Synthesis in the Cu-Ti-C System. Crystals 2017, 7, 205.

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