Accession Number : AD0734988

Title :   Thermal Degradation of Motor Oils, Their Components, and Additives in Neutral or Oxidizing Media,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Masek,Waclaw

Report Date : 26 OCT 1971

Pagination or Media Count : 14

Abstract : It is desirable to know the degree of the thermal decomposition of motor oils, at elevated temperatures in both neutral and oxidizing media. To test for this property, the authors used thermogravimetric analysis. When an oil sample is heated in a neutral medium some of its components evaporate. When the sample is heated in air, evaporation occurs at first, but soon thereafter oxidation and decomposition take place as well. The correlation between the loss of mass (evaporation) and the temperature is indicative of the oil's fractional composition in the first case and of its resistance to thermal decomposition in the second case.

Descriptors :   (*LUBRICANTS, *THERMAL STABILITY), THERMOGRAVIMETRIC ANALYSIS, DECOMPOSITION, EVAPORATION, OXIDATION, USSR, DEGRADATION

Subject Categories : Organic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE