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Abstract
A Near-Infrared Raman Imaging Microscope (NIRIM) is used to map chemical distributions on solid surfaces. This method combines fiber-bundle image compression (FIC) hardware with advanced multi-variate signal processing software to identify and map chemical species on surfaces. This non-invasive chemical mapping technique is used to study tribological materials containing solid lubricants on a substrate, both before and after tribotesting. The samples studied consist of boron carbide (B4C) and stainless steel substrates, coated with boric acid (H3BO3), and titanium aluminum nitride (TiAIN), respectively. The NIRIM instrument was used to map the distribution of these solid lubricants on tribological surfaces, both inside and outside wear tracks created under different load and lubrication conditions, in order to better characterize the relation between chemical micro-structure and lubricant performance. The NIRIM results are shown to correlate well with the combined SEMIX-ray micro-analysis of the same samples.
Presented at the 56th Annual Meeting in Orlando, Florida May 20–24, 2001
Notes
Presented at the 56th Annual Meeting in Orlando, Florida May 20–24, 2001