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Effect of Test Environment on Lifetime of Two Vacuum Lubricants Determined by Spiral Orbit Tribometry

Effect of Test Environment on Lifetime of Two Vacuum Lubricants Determined by Spiral Orbit Tribometry

          
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About the Book

The destruction rates of a perfluoropolyether (PFPE) lubricant, Krytox 143AC, subjected to rolling contact with 440C steel in a spiral orbit tribometer at room temperature have been evaluated as a function of test environment. The rates in ultrahigh vacuum, 0.213 kPa (1.6 torr) oxygen and one atmosphere of dry nitrogen were about the same. Water vapor in the test environment-a few ppm in one atmosphere of nitrogen-reduced the destruction rate by up to an order of magnitude. A similar effect of water vapor was found for the destruction rate of Pennzane 2001A, an unformulated multiply alkylated cyclopentane (MAC) hydrocarbon oil. Pepper, Stephen V. Glenn Research Center; Langley Research Center NASA/TM-2011-217002, E-17662


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Product Details
  • ISBN-13: 9781794333024
  • Publisher: Independently Published
  • Publisher Imprint: Independently Published
  • Height: 279 mm
  • No of Pages: 30
  • Spine Width: 2 mm
  • Width: 216 mm
  • ISBN-10: 1794333029
  • Publisher Date: 18 Jan 2019
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 95 gr


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