Friction control by surface engineering of ceramic sliding pairs in water
Friction control by surface engineering of ceramic sliding pairs in water
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DOI：
10.1016/j.wear.2006.11.024
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发表时间：
2007-09
期刊：
影响因子：
5
通讯作者：
K. Gahr;M. Mathieu;B. Brylka
中科院分区：
文献类型：
--
作者：
K. Gahr;M. Mathieu;B. Brylka
使用两种不同的激光辅助工艺对氧化物陶瓷（Al2O3-ZrO2、ZrO2）进行表面工程：（i）通过激光诱导重熔和合金化对陶瓷边缘层进行改性和/或（ii）通过激光烧蚀进行表面微纹理化。选择彼此平行的交叉微通道和细长微凹坑作为纹理图案，并在陶瓷的平面样品上制作。使用颗粒板几何结构，研究了这些表面处理对钢/陶瓷和陶瓷/陶瓷对在蒸馏水中往复滑动过程中摩擦性能的影响。结果表明，摩擦和磨损显着减少，具体取决于配合的材料和使用的纹理图案。与其他方法相比，滑动副摩擦系数高时的磨合行为可以得到显着改善。
Surface engineering was carried out on oxide ceramics (Al2O3–ZrO2, ZrO2) using two different laser-assisted processes: (i) modification of the edge layer of the ceramic by laser induced remelting and alloying and/or (ii) surface microtexturing by laser ablation. Crossed microchannels and elongated microdimples oriented parallel to each other were chosen as texture patterns and produced on flat specimens of the ceramics. Effects of these surface treatments on the tribological performance of steel/ceramic and ceramic/ceramic pairs were studied during reciprocating sliding in distilled water using a pellet-on-plate-geometry. The results showed a substantial reduction in friction and wear depending on the materials mated and the texture pattern used. With others, the running-in behaviour with high values of the friction coefficient of the sliding pairs could be considerably improved.