利用SRV球-盘磨损实验机考察了Sialon陶瓷在空气、水及三种钠盐溶液中的摩擦学性能，并用X光电子能借（XPS）揭示了摩擦化学反应对Sialon陶瓷摩擦学性能的影响．研究表明，在空气及水中，CM-60（（Ca，Mg）-α-Sialon）都具有比C-60（Ca-α-Sialon）好的抗磨性；水降低了两种Sialon陶瓷（CM-60和C-60）的摩擦系数，但增大了其磨损体积．CM-60在三种钠盐溶液中的磨损体积顺序为：硝酸钠＞磷酸钠＞次亚磷酸钠；CM-60在三种钠盐溶液及水中的摩擦系数顺序为：硝酸钠＞水＞次亚磷酸钠＞磷酸钠．XPS分析表明，水同Sialon陶瓷表面氧化物的反应，造成了陶瓷的腐蚀磨损，从而，在水及盐溶液中，Sialon陶瓷的磨损体积都有所增加．
The tribological properties of Sialon in air, water and three different sodium solutions were carried out by using SRV ball-on-disk tribo-tester. The tribological test
results demonstrate that either under dry sliding or water lubrication, CM-60 shows better anti-wear properties than C-60; water lubrication reduces the friction
coefficients of both Sialon ceramics (CM-60 and C-60) but increases their wear volumes. The wear volume order of CM-60 in the three different sodium solutions is as
follows: NaNO3>Na3PO4>NaH2PO2, it indicates that the anti-wear properties of these Na salt solutions are correlated with their oxidation ability; the friction
coefficient order of CM-60 in water and three different sodium solutions can be described as: NaNO3>H2O>NaH2PO2>Na3PO4. All of these lubricants made the wear
surfaces of Sialon ceramics quite smooth. It means that sodium salt solution can be used in chemical polishing of Sialon. Results also show that the reaction between
water and the oxides of Sialon has led to corrosion wear of Sialon. Thus, both in water and Na salt solutions, the wear volumes of Sialon ceramics were increased.
参考文献
| [1] | 张文光, 刘惠文, 刘维民, 薛群基. 陶瓷材料摩擦化学研究的最新进展, 机械科学与技术, 1997, 16 ( 增刊): 20--26 2 Aucote J, Foster S R. Materials Science and Technology, 1986, 2 (2): 700--708 3 Bhattacharyya S K, Jawaid A, Lewis M H, et al. Met. Technol. 1983, 10: 482--489 4 North B, Baker R D. Refract. Hard Mater., Mar. 1984. 46--51 5 Said Jahanmir. Advanced Ceramics in Tribological Applications. In: Jahanmir S ed. Friction and Wear of Ceramics. New York, 1994. 3--12 6 Joseph C Conway, Paul H Conhen, Donald A Love, et al. Wear, 1988, 126 (1/2): 79--80 7 Evans A G, Marshall P B. Wear Mechanism in Ceramics. Proc. of Int. Conf. on Foundamentals of Friction and Wear of Materials. Pittsburgh: ASME, 1980. 439--452 8 Gates R S, Hsu S M, Klaus E E. Tribology Transactions, 1989, 32 (3): 357--363 9 熊云, 张少雄. 润滑与密封, 1991, 3: 18--19 10 王致勇. 无机化学原理. 北京: 清华大学出版社, 1983 |
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