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ceramics are successfully added in the matrix carbon as SiC or c-BN. The C/C-SiC modified by RMI has high friction coefficient which reaches 0.30?0.90. The friction coefficient of C/C-SiC modified by CVD changes in 0.20?0.36, while the composites modified by c-BN using impregnation and in-situ reaction hold the lowest friction coefficient, which is 0.10?0.20. The wear surfaces of the RMI-modified......
)01-0299-07 Influence of particle friction coefficient on mechanical characteristics of cemented sandstone XU Ming1, 2, LIU Xianshan1, 2 (1. School of Civil Engineering, Chongqing University, Chongqing... coefficient plays a dominated role on resistance to shear when loading on the cemented sandstone. Different friction coefficients have different influences on the mechanical characteristics of the sandstone......
(Ti,Al)N/Ti2AlN涂层的制备董瑜亮1,闫旭波1,赵升升1,宫骏1,孙超1(1.辽宁省沈阳市科学院金属研究所金属腐蚀与防护国家重点实验室)摘 要:利用电弧离子镀技术在不锈钢基体上沉积了Ti-Al-N涂层,研究了沉积工艺参数对沉积态涂层的成分及相组成的影响,以及在不同退火处理条件下各涂层组织的变化.XRD结果表明,通过改变沉积工艺参数可以控制沉积态涂层的成分,使涂层经退火后生成Ti2AlN相.适当成分的沉积态涂层退火生成Ti2AlN相所需的最低退火温度为650℃,其它沉积态涂层在700℃或更高温度下退火......
the conventional coating has typical layered microstructure with obvious interfaces among splats. The coefficient of friction decreases with rising of temperature because of the formation of tribo-layer...Friction and wear behaviors of Al2O3-13 wt% TiO2 coatingsLin Lu,Zhuang Ma,Fu-Chi Wang,Yan-Bo LiuNational Key Laboratory of Science and Technology on Materials under Shock and Impact, School......
. The friction coefficient was reduced by addition of furan resin, which could also prevent the"dusting" wear at loads more than 15 MPa. The steady and lubricated transfer film was easily formed...Friction and Wear Behavior of Resin/Graphite Composite under Dry SlidingZhenguo Zhu,Shuo Bai,Junfeng Wu,Li Xu,Ting Li,Yong Ren,Chang LiuShenyang National Laboratory for Materials Science, Institute......
Influence of loading and rotation speed on Friction and Wear properties of CuAlBi Alloy刘荣昌,董丽涛,李兴元,陈秀宏摘 要:The variation of the friction coefficient..., and the influence of loading and rotation speed on friction and wear properties of CuAlBi alloy was also discussed. The results show that the friction coefficient increase then decrease with increase......
; dry sliding wear; wear resistance; friction of coefficient 1 Introduction Recently, aluminum metal matrix composites (Al-MMCs) are widely used in the field of tribology [1-2], which have superior... behavior of Al2O3 and/or carbon short fibers. They found that the friction coefficient and the wear rate of the hybrid composites containing a fixed 12% Al2O3 decreased with an increase of the carbon......
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Friction coefficient, lubrication state and surface roughness According to the Stribeck lubrication curve [21], the friction pairs with friction coefficient μ=0.10 are in boundary lubrication, and those with 0.001<μ<0.10 are in mixed lubrication. Figure 2 shows the relationship curves describing the friction coefficient varying with time. It can be seen that all the friction coefficients......
. The results show that, in the case of sliding speeds of 20-40m/s, the friction coefficient exhibits a decreasing tendency with increasing the normal pressure after an increment in the smaller pressure range, and the worn quantity of Ti3SiC2 exhibits a nearly linear increase with increasing the normal pressure. However, when the sliding speed is up to 60m/s, the friction coefficient exhibits......