红外光学材料的抗砂蚀行为研究 - 红外技术.pdf

第29 卷 第4 期 红 外 技 术 Vol.29 No.4 2007 年4 月 Infrared Technology Apr. 2007 〈系统与设计〉 喷射式冲蚀磨损实验系统及红外光学材料冲蚀行为研究 1 1,2 1 1 1 张凤雷 ，贺 琦 ，郭会斌，魏俊俊 ，吕反修 (1.北京科技大学 材料科学与工程学院，北京 100083；2.太原理工大学 表面工程研究所，山西 太原 030024) 摘要：自行设计和制造了喷射式冲蚀磨损实验系统及双速双盘测速装置，通过对磨料供给系统的改进， 提高了磨料供给稳定性和控制精度，采用双速双盘测速装置使喷砂速度的测量精度达到±5%。对红 外光学材料Ge、ZnS 、MgF2 和石英玻璃进行了冲蚀实验，测量了冲蚀磨损对红外透过率的影响，并通 过对冲蚀表面的扫描电子显微观测，对冲蚀机理进行了探讨。结果表明，该喷射式冲蚀磨损实验系统 能够满足冲蚀实验要求；在相同冲蚀条件下，不同的红外光学材料具有不同的冲蚀率，造成红外透过 率不同程度的降低，具有不完全相同的冲蚀机理。 关键词：喷射式冲蚀磨损实验机；红外光学材料；冲蚀破坏机理；红外透过率 中图分类号：TN216 文献标识码：A 文章编号：1001-8891(2007)04-0196-07 Study on Gas-blasting Erosion Tester and Erosion Behavior of Infrared Optical Materials 1 1,2 1 1 1 ZHANG Feng-lei ，HE Qi ，GUO Hui-bin ，WEI Jun-jun ，LU Fan-xiu (1.Department of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China ; 2.Taiyuan University of Technology, Research Institute of Surface Engineering, Taiyuan Shanxi 030024, China) Abstract ：A new gas-blasting erosion tester was designed and produced by ourselves. Solid particles feeding device was improved and the flux was more stable and the setting of the abrasive flow rate was more accurately. Based on Double Disk method, a new measurement named Double Speed Double Disk method was used to calibrate the particles velocity, and the accuracy was about ±5%. Ge、ZnS 、MgF2 and Quartz were used as erosion target. The erosion rate and the effect of erosion on the infrared transmittance were studied. The damaged surfac