The tribochemical mechanism of the borate modified by N-containing compound as oil additive

Yulin Qiao, Weimin Liu, Shangkui Qi, Qunji Xue, Binshi Xu, Shining Ma

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The tribological properties of the borate modified by N-containing compound were investigated with a four-ball tester. The boundary film on the rubbed surface were analyzed using a small area X-ray photoelectron spectrometer (XPS), the depth profiling XPS and the Auger electron spectroscopy (AES). Results of the tribological properties indicated that the borate modified by N-containing compound possesses good anti-wear and friction reduction properties, as well as high load-carrying capacity. The results of the small area XPS, the depth profiling XPS and AES analyzes illustrate that the boundary film on the wear surface is composed of C, O, B, N and Na elements, and boron element exists in four different chemical states, which is Na3B3O6, BN, B-Fe-O and FeB.

Original languageEnglish
Pages (from-to)165-169
Number of pages5
JournalWear
Volume215
Issue number1-2
DOIs
StatePublished - Mar 1998
Externally publishedYes

Keywords

  • Borate
  • Boundary film
  • Oil additives
  • Tribochemistry
  • XPS and AES analyses

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