Tribological Properties of Resin-based Brake Sheets Modified by Rare Earth Composite Nanomaterials
In order to improve the friction and wear properties of wind turbine yaw resin-based brake sheets at high temperature,rare earth and nanomaterials were used to modify the resin-based brake sheets.The resin-based brake sheets were prepared by hot pressing process,and its mechanical properties and friction and wear tests were carried out.The fric-tion and wear surfaces were observed and analyzed by SEM,EDS and XRD,and the mechanism of rare earth and nanoma-terials on resin-based composites was investigated.The results show that the mechanical properties and tribological proper-ties of the composites are improved by adding rare earth and nanomaterials,and 1％mass fraction of cerium oxide and yttri-um oxide,and 4％nano silica can increase the friction coefficient of the composite material by 9.09％and reduce the wear rate by 64.28％at 350 ℃.Through excellent interface effect,rare earth and nano-silica improve the thermal degradation resistance of the samples at high temperatures,reduce the wear amount of the samples at high temperatures,and the wear form of the sample changes from abrasive wear to adhesive wear.
resin-based brake sheetsrare earthnanomaterialsfriction and wearmechanical properties
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万方数据
维普
