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粉末冶金材料科学与工程  2023, Vol. 28 Issue (1): 44-54    DOI: 10.19976/j.cnki.43-1448/TF.2022087
  工艺技术 本期目录 | 过刊浏览 | 高级检索 |
SiO2与ZrO2组元对铜基摩擦材料与C/C-SiC复合材料配副摩擦磨损性能的影响
李陈鑫, 刘如铁, 林雪杨, 陈洁, 熊翔, 廖宁
中南大学 粉末冶金国家重点实验室,长沙 410083
Effects of SiO2 and ZrO2 on friction and wear properties of copper-based friction materials mated with C/C-SiC composites
LI Chenxin, LIU Rutie, LIN Xueyang, CHEN Jie, XIONG Xiang, LIAO Ning
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
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摘要 在粉末冶金铜基摩擦材料中分别添加SiO2和ZrO2,研究SiO2和ZrO2对粉末冶金铜基摩擦材料与C/C-SiC复合材料配副时摩擦磨损性能的影响,并分析两者影响机制的内在关联。结果表明,含SiO2或ZrO2的铜基摩擦材料与C/C-SiC复合材料配副时,能在高制动速度下保持较高的平均摩擦因数,分别为0.375 8和0.342 4,摩擦材料的磨损量较低,为1.44 μm/次和0.95 μm/次,配副材料几乎无磨损。SiO2在制动过程中易脱落,形成磨粒,对摩擦材料与配副材料表面造成磨粒磨损,而ZrO2在基体中保持完整,以硬质微凸体的形式对C/C-SiC复合材料摩擦表面产生犁削作用。SiO2在高制动速度下破碎脱落后易嵌入C/C-SiC复合材料表面摩擦膜,有利于以Cu及Cu的化合物为主的磨屑在其周围积累,促进摩擦转移膜在C/C-SiC复合材料摩擦表面的形成,从而改善材料的摩擦磨损性能。
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李陈鑫
刘如铁
林雪杨
陈洁
熊翔
廖宁
关键词 铜基摩擦材料C/C-SiC复合材料摩擦磨损SiO2ZrO2    
Abstract:SiO2 and ZrO2 were added to powder metallurgy Cu-based friction materials respectively. The effects of SiO2 and ZrO2 on the friction and wear properties of powder metallurgy Cu-based friction materials mated with C/C-SiC composites were studied, and the internal relationship between their influence mechanisms was analyzed. The results show that the Cu-based friction materials containing SiO2 or ZrO2 can achieve high average friction coefficient (0.375 8 and 0.342 4 respectively) at high braking speeds when they is mated with C/C-SiC composites. The wear of the friction materials are very low, which is 1.44 μm/time and 0.95 μm/time respectively, and the C/C-SiC composites has almost no wear. During the braking process, SiO2 is easy to fall off and form abrasive particles, causing abrasive wear on the two friction surfaces. However, ZrO2 remains intact in the matrix, which mainly ploughs the friction surface of C/C-SiC composites in the form of hard micro bumps. SiO2 is easily embedded in the friction film of C/C-SiC composites after breaking and falling off at high braking speed, which is conducive to the accumulation of wear debris mainly composed of Cu and Cu compounds around it, and promotes the formation of friction transfer film on the friction surface of C/C-SiC composites to improve the friction and wear properties of the materials.
Key wordscopper-based friction materials    C/C-SiC composites    friction and wear    SiO2    ZrO2
收稿日期: 2022-11-15      出版日期: 2023-03-23
ZTFLH:  TB333  
基金资助:国家国际科技合作项目(2015DFR50580)
通讯作者: 刘如铁,教授,博士。电话:0731-88876566;E-mail: llrrtt@csu.edu.cn   
引用本文:   
李陈鑫, 刘如铁, 林雪杨, 陈洁, 熊翔, 廖宁. SiO2与ZrO2组元对铜基摩擦材料与C/C-SiC复合材料配副摩擦磨损性能的影响[J]. 粉末冶金材料科学与工程, 2023, 28(1): 44-54.
LI Chenxin, LIU Rutie, LIN Xueyang, CHEN Jie, XIONG Xiang, LIAO Ning. Effects of SiO2 and ZrO2 on friction and wear properties of copper-based friction materials mated with C/C-SiC composites. Materials Science and Engineering of Powder Metallurgy, 2023, 28(1): 44-54.
链接本文:  
http://pmbjb.csu.edu.cn/CN/10.19976/j.cnki.43-1448/TF.2022087     或     http://pmbjb.csu.edu.cn/CN/Y2023/V28/I1/44
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