Page 49 - 摩擦学学报2025年第4期
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第 45 卷 第 4 期 摩擦学学报(中英文) Vol 45 No 4
2025 年 4 月 Tribology Apr, 2025
DOI: 10.16078/j.tribology.2024033 CSTR: 32261.14.j.tribology.2024033
易美荣, 刘子钲, 雷锦, 覃靖国, 冯柏晨, 郭烈恩. 镀铜Ti 3 SiC 2 和石墨双相增强铜基复合材料的制备及摩擦学性能研究[J]. 摩擦
学 学 报 ( 中 英 文 ) , 2025, 45(4): 537−547. YI Meirong, LIU Zizheng, LEI Jin, QIN Jingguo, FENG Baichen, GUO Lieen.
Preparation and Tribological Properties of Copper-Based Composites Reinforced with Dual Phases of Cu-Coated Ti 3 SiC 2 and
Graphite[J]. Tribology, 2025, 45(4): 537−547.
镀铜Ti SiC 和石墨双相增强铜基复合
3
2
材料的制备及摩擦学性能研究
易美荣, 刘子钲, 雷 锦, 覃靖国, 冯柏晨, 郭烈恩 *
(南昌大学 先进制造学院,江西 南昌 330031)
摘 要: 采用电化学镀方法在石墨和钛碳化硅(Ti 3 SiC 2 )颗粒表面镀覆铜层以提高其与铜基体的界面结合强度,进一
步,通过热压烧结制备了镀铜石墨和镀铜Ti 3 SiC 2 单相或双相增强的铜基复合材料,并对复合材料的组织结构、物理
力学性能和摩擦学性能进行研究. 研究发现:镀铜石墨单相增强的铜基复合材料具有最低的摩擦系数(0.26),但物理
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3
力学性能和耐磨性[1.86×10 cm /(N·m)]较差. 添加镀铜Ti 3 SiC 2 能显著提高铜基复合材料的物理力学性能和耐磨
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性[0.88×10 cm /(N·m)],但摩擦系数降低程度较小(0.49). 镀铜Ti 3 SiC 2 和镀铜石墨双相增强铜基复合材料具有优异
3
的物理力学性能和减摩耐磨性. 此外,研究发现:小尺寸石墨(40 μm)使材料的均匀性得到提高,有利于基体中的石墨
在摩擦过程中均匀的向摩擦接触面提供润滑介质,从而提高材料的摩擦学性能和物理力学性能. 而大尺寸石墨在
摩擦过程中,石墨易发生剥落形成三体磨损,从而增加摩擦系数和磨损率. 摩擦过程中,Ti 3 SiC 2 氧化分解与石墨一
起在摩擦表面形成润滑膜从而起到较好的减摩耐磨效果,但当载荷过高时,摩擦表面的润滑膜遭到破坏,磨损加剧.
关键词: 摩擦; 复合材料; Ti 3 SiC 2 ; 石墨; 润滑膜
中图分类号: TH117.1 文献标志码: A 文章编号: 1004-0595(2025)04–0537–11
Preparation and Tribological Properties of Copper-Based
Composites Reinforced with Dual Phases of
Cu-Coated Ti SiC and Graphite
2
3
YI Meirong, LIU Zizheng, LEI Jin, QIN Jingguo, FENG Baichen, GUO Lieen *
(School of Advanced Manufacture, Nanchang University, Jiangxi Nanchang 330031, China)
Abstract: In this study, electroless plating was used to deposit a Cu layer on the surfaces of graphite and titanium silicon
carbide (Ti 3 SiC 2 ) particles to improve their interfacial bonding strength with the Cu matrix. Furthermore, copper-based
composite materials reinforced with either copper-coated graphite or copper-coated Ti 3 SiC 2 , either singly or in
combination, were prepared by ball milling, cold pressing and hot pressed sintering. The organization structure, physical
mechanical properties, and tribological properties of the composite materials were studied. It was found that the copper-
Received 2 February 2024, revised 16 April 2024, accepted 17 April 2024, available online 8 August 2024.
*Corresponding author. E-mail: glen@ncu.edu.cn, Tel: +86-13970016675.
This project was supported by the National Natural Science Foundation of China (52065042), the Natural Science Foundation of
Jiangxi Province, China (20212BAB214059, 20232BAB204040) and Tribology Science Fund of State Key Laboratory of Tribology
(SKLTKF19B06).
国家自然科学基金项目(52065042)、江西省自然科学基金项目(20212BAB214059, 20232BAB204040)和清华大学摩擦学国家
重点实验室开放基金项目(SKLTKF19B06)资助.