纳米SiC在聚四氟乙烯复合材料中的性能
纳米SiC在聚四氟乙烯复合材料中的性能Behavior of nano-SiC in Polytetrafluoroethylene Composites
作 者:谢凤宽 杜建华 陈宗浩 姜厚温
XIE Feng-kuan DU Jian-hua CHEN Zong-hao JIANG Hou-wen ( National Defense Key Laboratory for Remanufacturing Technology, Academy of Armored Force Engineering, Beijing 100072, China)
机构地区:装甲兵工程学院装备再制造技术国防科技重点实验室,北京100072
出 处:《装甲兵工程学院学报》 2007年第21卷第5期 49-51页,共3页
Journal of Armored Force Engineering Institute
摘 要:添加质量分数为3.0%的纳米碳化硅(n-SiC)的多元聚四氟乙烯(PTFE)复合材料具有优良的摩擦因数和耐磨性。研究了n-SiC对复合材料摩擦磨损过程中的转移膜、磨损形貌的影响。研究认为,n—SiC在多元PTFE复合材料中的主要作用是:促进哪E转移膜的形成,以获得低而稳定的摩擦因数;有效提高复合材料的耐热性、承载能力,减少粘着磨损量,提高复合材料的抗微切削能力;促进复合材料的磨损机制由粘着磨损为主向微切削磨损为主的转变。
The multi-composite PTFE with 3.0% (wt) n-SiC has excellent friction coefficient and wear resistance, which is related to the behavior of n-SiC in the composites. In this paper, the influence of n-SiC on the transfer film and wear topography of composite in course of friction and wear is investigated. The results show that the roles of n-SiC in the composite are mainly as follows : accelerating the forming of transfer film of PTFE to result in low and steady friction coefficient, promoting effectively the heat resistance and bearing capacity and decreasing the adhesive wear quantity, increasing the capacity of micro-cutting resistance, boosting the transformation of leading wear mechanism from adhesive wear to micro-cutting wear.
关 键 词:聚四氟乙烯 复合材料 纳米材料 摩擦磨损性能
polytetrafluoroethylene composites nano-materials friction and wear performance
分 类 号: TF125.9 [工业技术 > 冶金工业 > 冶金技术 > 粉末冶金(金属陶瓷工艺) > 粉末冶金制品及其应用]
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