Affordable Access

Publisher Website

Electric contact surface of Pd-plated metal in organic gas/air atmospheres

Authors
Journal
Wear
0043-1648
Publisher
Elsevier
Publication Date
Volume
230
Issue
1
Identifiers
DOI: 10.1016/s0043-1648(98)00170-7
Keywords
  • Benzene
  • Contacts
  • Organic Substances
  • Palladium
  • Surface Composition
  • Tribology
Disciplines
  • Chemistry
  • Physics

Abstract

Abstract Variations in the state of electric contact surface with make–break cycles were investigated with Pd-plated contact in an organic gas/air atmosphere including benzene, C 6H 6, cyclohexane, C 6H 12, or n-hexane, C 6H 14. By introducing the organic vapor into an ambient atmosphere, contact resistance increase was suppressed. Quantitative analysis of the fretted surface was performed by electron probe X-ray microanalyser (EPMA), and it was found that C and O exist on the surface in an atomic ratio of 7.1 for benzene, 6.2 for cyclohexane and of 5.9 for n-hexane, respectively, suggesting the generation of definite reaction products. Analytical results using Fourier transformed infrared absorption spectroscopy (FT-IR) showed that the products included carbonyl or carboxylic groups. The wear rate of the contact surface and film thickness of the reaction product were discussed in relation to the tribochemical reaction.

There are no comments yet on this publication. Be the first to share your thoughts.