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

低散热柴油机或组合柴油机的开发 和燃气涡轮机发动机要求润滑剂和机器表面能够 在500摄氏度及以上的温度下工作。 如果固体 如果使用润滑剂，则很难补充润滑剂。 的一种方法 替代是通过催化剂产生润滑剂碳 磨损表面上燃烧气体的分解或还原 自己 对这一过程的研究一直在进行中， 超真空（UHV）系统，以获得轮廓分明的表面， 条件 该系统的设计目的是允许就地分析 摩擦、磨损、表面粗糙度（通过光学轮廓测定法）， 环境和解吸气体（质谱法），以及表面 吸附物（通过发射红外傅立叶光谱FTIR，通过 windows）。 为了准确定义磨损表面，俄歇电子 使用专用仪器进行AES分析是必不可少的。 为 表面动力学测量FTIR需要升级。 当乙烯 的摩擦系数作为测试气体， 具有含镍转移膜的合金或陶瓷 合金可重复地减少六倍或更多倍。

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.