DTIC ADA226134: Evaluation of Solid Lubricants: The pdf

DTIC ADA226134: Evaluation of Solid Lubricants: The

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Thermal desorption spectroscopy (TDS) is introduced as a diagnostic tool for determining the thermal stability of solid lubricant films. In particular, TDS revealed the temperatures at which various decomposition processes occurred as sputtered films were heated in vacuum. The primary film decomposition products detected were SO2 beginning at about 425K and S2 beginning at about 1150K. A close relationship between water desorption beginning about 400K and SO2 desorption exists in the temperature range 400K- 800K. Besides chemical decomposition products, a significant amount of argon trapped in the film during the sputtering process is released at various temperatures. TDS results for sputtered films were compared with results for burnished films and with thermo-gravimetric (TGA) analysis, water absorption, and other relevant studies of molybdenum disulfide found in the literature. (js

• Creator/s: Defense Technical Information Center
• Date: 8/1/1990
• Year: 1990
• Book Topics/Themes: DTIC Archive, Pierce, Daniel E, ILLINOIS UNIV AT CHICAGO CIRCLE DEPT OF CHEMISTRY, *SOLID LUBRICANTS, MASS SPECTROMETRY, WATER, THIN FILMS, VACUUM, FILMS, THERMAL STABILITY, SOLIDS, X RAYS, CHEMISTRY, DIAGNOSTIC EQUIPMENT, ABSORPTION, ARGON, DESORPTION, DECOMPOSITION, SPUTTERING, THERMAL DEGRADATION, MOLYBDENUM COMPOUNDS, SULFIDES, THERMAL RADIATION, PHOTOELECTRONS, SURFACE ANALYSIS, SPECTROSCOPY

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