国产成人亚洲精品无码青app,白丝紧致爆乳自慰喷水,国产疯狂女同互磨高潮在线观看,jizzjizz少妇亚洲水多

Micro-assembling Teˉon/Si3N4 multilayer ?lm was developed by ion beam alternating sputtering Teˉon and Si3N4 ceramic targets. The?structural, mechanical and microtribological properties were studied by PHI-5300, FTIR, XRD and atomic force and friction force microscope(AFM/FFM). The results show that the multilayer consists of Si3N4 component and crystalline Teˉon. The hardness of the multilayer is ?less than that of Si3N4; but the toughness of Teˉon/Si3N4 is greatly improved. The friction coef?cient of Teˉon/Si3N4 multilayer is lower thanthat of Si3N4 ?lm, and the wear resistance of Teˉon/Si3N4 multilayer is much greater than that of Teˉon ?lm. The friction force of Teˉon/Si3N4 ?lm is linear with the load in nanoscale. The worn track will be formed in Teˉon and Teˉon/Si3N4 ?lm when the load is greater than 70?nN. q1999 Published by Elsevier Science Ltd. All rights reserved.

影響因子
1.879
論文下載
作者

Jihui Wang,Xinchun Lu,Shizhu Wen,Hengde Li,Liduo Wang.

期刊

Thin Solid Films,342,291-296(1999)

年份