Investigation and Optimization of Micro-Oxidation Techniques Employed in Gas Turbine Engine Oil Characterization
Technical rept. May 1967-Dec 1970
AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH
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Rationale is provided which led to a modified oxidation-corrosion O- C test. Test methods, apparatus, and procedures are described for use up to 800F, a 20 milliliter amount of sample oil and a test time of 24 hours. The influence of various important parameters on oxidation-corrosion are presented. The reduction of the test duration to 24 hours was optimized. Oxidation corrosion studies at several different temperatures and the resulting oil deterioration curves were shown to be meaningful from a minimum of 392F to a maximum of 700F. The selection of the proper air flow was coupled with the reduced sample size as most appropriate for this work. The selection of high purity metal catalysts was justified. Analysis methods used in this work and their relative merits are discussed. Finally oxidation-corrosion data is presented on a few typical base stocks using this method.
- Organic Chemistry
- Jet and Gas Turbine Engines