...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear >Understanding the friction and wear of KDP crystals by nanoscratching
【24h】

Understanding the friction and wear of KDP crystals by nanoscratching

机译：通过纳米刮擦了解KDP晶体的摩擦和磨损

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Potassium dihydrogen phosphate (KDP) is an important nonlinear optical crystal material, and has been widely used in large-aperture high-power laser systems. This paper aims to explore the friction and wear mechanisms of KDP by nanoscratching using Berkovich and conical indentation tips. Two scratching loading modes, the 'Constant' and the 'Continuous', were applied. During the experiment, the moisture and temperature in the testing chamber were controlled. The study found that the adhesive force plays an important role when the scratching load is low. The lateral force or the friction coefficient fluctuates due to the non-uniform deformation of the KDP in front of the indentation tip. During a constant loading scratching, the frequency and amplitude of the fluctuation vary with the level of the scratching load and the type of the indenter, while the velocity effect seems to be trivial. The slip in the KDP crystal, which is very much affected by contact stress, could be a main mechanism of plastic deformation. The Berkovich tip produces more obvious wavy groove walls, while the conical tip brings about more ploughing deformation along the wear track. The strain rate in the range investigated in this study seems to have a little effect on the micro-plastic deformation. (C) 2014 Elsevier B.V. All rights reserved.
机译：磷酸二氢钾（KDP）是一种重要的非线性光学晶体材料，已被广泛用于大孔径高功率激光系统中。本文旨在通过使用Berkovich和锥形压痕尖端进行纳米刮擦来探索KDP的摩擦和磨损机理。应用了两种抓取加载模式：“恒定”和“连续”。在实验过程中，控制测试室内的湿度和温度。研究发现，当刮擦负荷较低时，粘合力起着重要作用。由于KDP在压痕尖端前面的不均匀变形，侧向力或摩擦系数会发生波动。在恒定的载荷刮擦过程中，波动的频率和幅度随刮擦载荷的水平和压头的类型而变化，而速度影响似乎微不足道。 KDP晶体中的滑移受接触应力的影响很大，可能是塑性变形的主要机理。 Berkovich刀尖产生更明显的波浪形凹槽壁，而圆锥形刀尖沿磨损轨迹产生更多的犁形变形。在该研究中研究的范围内的应变速率似乎对微塑性变形影响很小。 （C）2014 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号