A Novel Approach of Using Ground CNTs as the Carbon Source to Fabricate Uniformly Distributed Nano-Sized TiCx/2009Al Composites

Lei Wang; Feng Qiu; Licheng Ouyang; Huiyuan Wang; Min Zha; Shili Shu; Qinglong Zhao; Qichuan Jiang

doi:10.3390/ma8125495

A Novel Approach of Using Ground CNTs as the Carbon Source to Fabricate Uniformly Distributed Nano-Sized TiC_x/2009Al Composites

Materials (Basel). 2015 Dec 17;8(12):8839-8849. doi: 10.3390/ma8125495.

Authors

Lei Wang¹, Feng Qiu², Licheng Ouyang³, Huiyuan Wang⁴, Min Zha⁵, Shili Shu⁶, Qinglong Zhao⁷, Qichuan Jiang⁸

Affiliations

¹ Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. leiwang798@163.com.
² Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. qiufeng@jlu.edu.cn.
³ Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. 18844562051@163.com.
⁴ Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. wanghuyaun@jlu.edu.cn.
⁵ Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. xunai85@126.com.
⁶ State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130012, China. shushili@ciomp.ac.cn.
⁷ Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. zhaoqinglong@jlu.edu.cn.
⁸ Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, China. jqc@jlu.edu.cn.

Abstract

Nano-sized TiC_x/2009Al composites (with 5, 7, and 9 vol% TiC_x) were fabricated via the combustion synthesis of the 2009Al-Ti-CNTs system combined with vacuum hot pressing followed by hot extrusion. In the present study, CNTs were used as the carbon source to synthesize nano-sized TiC_x particles. An attempt was made to correlate the effect of ground CNTs by milling and the distribution of synthesized nano-sized TiC_x particles in 2009Al as well as the tensile properties of nano-sized TiC_x/2009Al composites. Microstructure analysis showed that when ground CNTs were used, the synthesized nano-sized TiC_x particles dispersed more uniformly in the 2009Al matrix. Moreover, when 2 h-milled CNTs were used, the 5, 7, and 9 vol% nano-sized TiC_x/2009Al composites had the highest tensile properties, especially, the 9 vol% nano-sized TiC_x/2009Al composites. The results offered a new approach to improve the distribution of in situ nano-sized TiC_x particles and tensile properties of composites.

Keywords: Al composites; combustion synthesis; distribution; nano-sized TiCx; tensile properties.