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Materials 2016, 9(11), 904; doi:10.3390/ma9110904

The Microwave-Assisted Green Synthesis of TiC Powders

1
College of Materials Science & Engineering, South China University of Technology, Guangzhou 510640, China
2
Department of Chemical & Biomolecular Engineering and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06269, USA
3
Guangzhou Redsun Gas Appliances Co., Ltd., Guangzhou 510460, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Jie Zheng
Received: 6 September 2016 / Revised: 2 November 2016 / Accepted: 3 November 2016 / Published: 8 November 2016
(This article belongs to the Special Issue Smart Biomaterials and Biointerfaces)
View Full-Text   |   Download PDF [2683 KB, uploaded 9 November 2016]   |  

Abstract

Titanium carbide (TiC) is an important engineering material and has found widespread applications. Currently, TiC is typically synthesized through carbothermal reduction, requiring a high temperature (ca. 1700–2300 °C) and long reaction time (ca. 10–20 h), which is not eco-friendly. During a conventional reaction path, anatase TiO2 (A-TiO2) was first converted to rutile TiO2 (R-TiO2), which was subsequently reduced to TiC. Herein, we explored the synthesis of TiC powders with the assistance of microwave heating. In particular, we achieved the conversion of A-TiO2, which was more reactive than R-TiO2 for the carbothermal reduction, to TiC, which was directly due to quick microwave heating. As such, the carbothermal reduction started at a much lower temperature of ca. 1200 °C and finished within 30 min when reacting at 1400 °C, leading to significant energy saving. This study shows that microwave-assisted synthesis can be an effective and green process for preparing TiC powders, which is promising for future large-scale production. The influence of the reaction temperature, the reaction duration, and the carbon content on the synthesis of TiC powders was investigated. View Full-Text
Keywords: TiC powders; microwave-assisted synsthesis TiC powders; microwave-assisted synsthesis
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Wang, H.; Zhu, W.; Liu, Y.; Zeng, L.; Sun, L. The Microwave-Assisted Green Synthesis of TiC Powders. Materials 2016, 9, 904.

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