Investigation on microstructure and properties of TiCx-graphite/Cu composites fabricated by a novel in-situ reactive synthesis

被引:8
作者
Wei, Hongming [1 ]
Li, Zhiqiang [3 ]
Zou, Jianpeng [1 ]
Gong, Yurong [2 ]
Li, Xiaoya [1 ]
Zhan, Wenyi [1 ]
Li, Feiyang [1 ]
Dai, Yanzhang [1 ]
机构
[1] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
[2] Kunming Univ Sci & Technol, Fac Land Resources Engn, Kunming 650093, Peoples R China
[3] Technol Ctr China Tobacco Yunnan Ind Co Ltd, Kunming 650231, Yunnan, Peoples R China
关键词
TiCx-graphite; Cu composites; Hardness; Conductivity; Ti2SnC; MECHANICAL-PROPERTIES; WEAR; GRAPHENE;
D O I
10.1016/j.coco.2023.101494
中图分类号
TB33 [复合材料];
学科分类号
摘要
TiCx-graphite/Cu composites were prepared by spark plasma sintering using copper-coated graphite powder, copper powder, and Ti2SnC powder as raw materials. The phase composition, microstructure, relative density, hardness, and conductivity of the composites prepared with 25, 30, 35, and 40 wt% Ti2SnC were studied in this paper. The results show that TiCx would be synthesized from Ti2SnC in situ during the sintering process, and Sn atoms diffused out from Ti2SnC and into the Cu matrix. The relative density and of hardness the composites prepared with different Ti2SnC content was above 93% and 65 HSD, respectively. The conductivity of the composites decreased from 1.696 x 10(7) S m(-1) to 9.380 x 10(6) S m(-1) with the Ti2SnC content increasing from 25 to 40 wt%.
引用
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页数:6
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