Engineering Research Equipment Grant: Auger Electron Spect-rometer and Upgrade of a Fourier Transform Infrated Spectro-photometer

工程研究设备资助：俄歇电子能谱仪和傅里叶变换红外分光光度计的升级

• 批准号: 8705147
• 负责人: James Lauer
• 金额: $ 3万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1988-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8705147&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Auger

The development of a low heat rejection diesel or combination diesel and gas turbine engine requires lubricants and machine surfaces capable of operation at temperatures of 500 degrees C and above. If solid lubricants are used, it is dificult to replenish them. One method of replacement is the generation of lubricant carbon by catalytic dissociation or reduction of combustion gases on the wear surfaces themselves. A study of such a process has been underway using an ultrahigh vacuum (UHV) system to obtain well-defined surfaces and conditions. This system was designed to allow in-place analysis of friction, wear, surface probile (by optical profilometry), environmental and desorbed gases (by mass spectrometry), and surface adsorbates (by emission infrared Fourier spectroscopy FTIR, through windows). For the exact definition of the wear surface, Auger electron spectroscopy (AES) with a dedicated instrument is essential. For surface kinetic measurements the FTIR needs upgrading. When ethylene was used as a test gas the friction coefficient for nickel-containing alloys or ceramics provided with a transfer film of nickel-containing alloy was reproducibly reduced by factors of six or more.

低排热柴油机或柴油燃气轮机组合发动机的开发需要能够在 500 摄氏度及以上温度下运行的润滑油和机器表面。 如果使用固体润滑剂，则很难补充。 一种替代方法是通过催化离解或减少磨损表面本身的燃烧气体来产生润滑剂碳。 人们已经利用超高真空 (UHV) 系统对这一过程进行了研究，以获得明确的表面和条件。 该系统旨在对摩擦、磨损、表面概率（通过光学轮廓测定法）、环境和解吸气体（通过质谱法）以及表面吸附物（通过发射红外傅里叶光谱 FTIR，通过窗口）进行就地分析。 为了准确定义磨损表面，配备专用仪器的俄歇电子能谱 (AES) 至关重要。 对于表面动力学测量，FTIR 需要升级。 当使用乙烯作为测试气体时，含镍合金或具有含镍合金转移膜的陶瓷的摩擦系数可再现地降低六倍或更多。