Dimension effect of Ti powder size on evolution of microstructure and mechanical properties of CNT/Al composites

doi:10.13251/j.issn.0254-6051.2020.08.013

Abstract

Abstract: CNT/Al composites were prepared by powder metallurgy with high density and strength, the effects of different sizes of titanium powder on microstructure and mechanical properties of the composites were systematically studied. The results show that mechanical properties of the CNT-Ti/Al composites are inversely proportional to the particle size of the Ti powders. The CNT-Ti/Al composite rod has best mechanical properties with added Ti powder with particle size of 80 nm. These results can be attributed to the Ti powder not only circumvents CNTs dispersion burden, but also plays as second phase particles that enhance the strength of matrix. Besides, owing to the heat reaction during the preparation process, a core-shell structure is formed, which improves the interface bonding and the load transfer efficiency of CNTs.

Key words: carbon nanotube, aluminum matrix composites, Ti, microstructure, mechanical properties

CLC Number:

TG146.2

Wu Yaosha, Zhang Yamin, Wang Lirong, Shi Peng, Zhang Ning, Liu Xiaoqing. Dimension effect of Ti powder size on evolution of microstructure and mechanical properties of CNT/Al composites[J]. Heat Treatment of Metals, 2020, 45(8): 64-69.

References

[1]Lijima Sumio. Helical microtubules of graphitic carbon[J]. Nature, 1991, 354: 56-58.
[2]Fan Genlian, Tan Zhanqiu, Guo Qiang, et al. Enhanced interfacial bonding and mechanical properties in CNT/Al composites fabricated by flake powder metallurgy[J]. Carbon, 2018, 130: 333-339.
[3]李铮, 蔡晓兰, 周蕾, 等. CNTs含量对CNTs/Al5083复合材料力学性能的影响[J]. 金属热处理, 2015, 40(1): 175-177.
Li Zheng, Cai Xiaolan, Zhou Lei, et al. Effect of CNTs content on mechanical properties of CNTs/Al 5083 composite materials[J]. Heat Treatment of Metals, 2015, 40(1): 175-177.
[4]杨康, 孙红亮, 陈志远, 等. 镀镍碳纳米管/TiAl复合材料的制备与性能[J]. 金属热处理, 2019, 44(10): 166-169.
Yang Kang, Sun Hongliang, Chen Zhiyuan, et al. Preparation and properties of Ni-CNTs/TiAl composite materials[J]. Heat Treatment of Metals, 2019, 44(10): 166-169.
[5]Xu Z Y, Li C J, Li K R, et al. Carbon nanotube-reinforced aluminum matrix composites enhanced by grain refinement and in situ precipitation [J]. Journal of Materials Science, 2019, 54: 8655-8664.
[6]Liu Z Y, Xiao B L, Xue P, et al. Effect of ball-milling time on mechanical properties of carbon nanotubes reinforced aluminum matrix composites[J]. Composites Part A: Applied Science and Manufacturing, 2012, 43: 2161-2168.
[7]Pham Van Trinh, Doan Dinh Phuong, Phan Ngoc Minh, et al. Microstructure, microhardness and thermal expansion of CNT/Al composites prepared by flake powder metallurgy[J]. Composites Part A: Applied Science and Manufacturing, 2018, 105: 126-137.
[8]Liu Liang, Yi Jianhong, Li Caiju, et al. Well-dispersion of CNTs and enhanced mechanical properties in CNTs/Cu-Ti composites fabricated by molecular level mixing[J]. Journal of Alloys and Compounds, 2017, 726: 81-87.
[9]He Chunnian, Shi Chunsheng, Du Xiwen, et al. An approach to obtaining homogeneously dispersed carbon nanotubes in Al powders for preparing reinforced al-matrix composites[J]. Advanced Materials, 2017, 19: 1128-1132.
[10]Xu Run, Xiong Dingbang, Fan Genlian, et al. Balanced strength and ductility in CNT/Al composites achieved by flake powder metallurgy via shift-speed ball milling[J]. Composites Part A: Applied Science and Manufacturing, 2017, 96: 57-66.
[11]Chen Malin, Tan Zhanqiu, Xiong Dingbang, et al. Design of an efficient flake powder metallurgy route to fabricate CNT/6061Al composites[J]. Materials and Design, 2018, 142: 288-296.
[12]Zhao Qi, Liu Yichun, Yi Jianhong. Improved electroless plating method through ultrasonic spray atomization for depositing silver nanoparticles on multi-walled carbon nanotubes[J]. Applied Surface Science, 2017, 409: 164-168.
[13]Zhou Weiwei, Kawasaki Akira. Effective control of nanodefects in multiwalled carbon nanotubes by acid treatment[J]. Carbon, 2014, 78: 121-129.
[14]Zhou Weiwei, Kurit Hiroki, Miyazaki Takamichi, et al. Interface and interfacial reactions in multi-walled carbon nanotube reinforced aluminum matrix composites[J]. Carbon, 2016, 96: 919-928.
[15]Chen B, Ye X, Mai H I, et al. Solid-state interfacial reaction and load transfer efficiency in carbon nanotubes (CNTs)-reinforced aluminum matrix composites[J]. Carbon, 2017, 114: 198-208.
[16]Saba F, Sajjadi S A, Haddad-Sabzevar M, et al. Formation mechanism of nano titanium carbide on multi-walled carbon nanotube and influence of the nanocarbides on the load-bearing contribution of the nanotubes inner-walls in aluminum-matrix composites[J]. Carbon, 2017, 115: 720-729.
[17]Farhad Saba, Seyed A, Sajjadi, et al. Pulsed current field assisted surface modification of carbon nanotubes with nanocrystalline titanium carbide[J]. Carbon, 2016, 101: 261-271.
[18]Liu Liang,Yi Jianhong, Fang Dong. Fabrication of CNT/Cu composites with enhanced strength and ductility by SP combined with optimized SPS method[J]. Journal of Alloys and Compounds, 2018, 747: 91-99.
[19]Cheng Bowen,Yi Jianhong, Li Caiju, et al. Interface optimization of CNT/Cu composite by forming TiC nanoprecipitation and low interface energy structure via spark plasma sintering[J]. Journal of Alloys and Compounds, 2017, 722: 852-858.
[20]Liu X Q, Li C J, Yi J H, et al. Enhancing the interface bonding in carbon nanotubes reinforced Al matrix composites by the in situ formation of TiAl₃ and TiC[J]. Journal of Alloys and Compounds, 2018, 765: 98-105.
[21]Guo Baisong, Song Ni, Shen Rujuan, et al. Fabrication of Ti-Al₃Ti core-shell structured particle reinforced Al based composite with promising mechanical properties[J]. Materials Science and Engineering A, 2015, 639: 269-273.
[22]Liu Xiaoqing, Li Caiju, Prashanth Konda Gokuldoss, et al. Microstructure evolution and mechanical properties of carbon nanotubes reinforced Al matrix composites[J]. Materials Characterization, 2017, 133: 122-132.