본문 바로가기
  • Home

Superior tribology property of zinc phosphate impregnated graphite block at high-temperature oxidative friction

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2022, 32(5), pp.1365-1376
  • DOI : 10.1007/s42823-022-00363-5
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : April 21, 2022
  • Accepted : May 27, 2022
  • Published : August 1, 2022

Xu Yuxuan 1 Tu Chuanjun 1 Liu Yanli 1 Liu Ping 1 Chen Gang 1 Tan Jiao 1 Xiong Wei 2 He Yubo 2 Liang Shilin 3 Ma Qingchun 3

1Hunan University
2Key Laboratory for Special Sealing of Hunan Province, Aero Engine Corporation of China Changjiang Engine Company Limited
3하얼빈 전기 탄소 연구소, 하얼빈

Accredited

ABSTRACT

High-temperature friction performances of graphite blocks (GBs) and zinc phosphate impregnated graphite blocks (IGBs) were evaluated under various friction temperatures. The surface of IGB exhibited extremely lower average friction coefficient values, that was 0.007 at 400 °C and 0.008 at 450 °C, in comparison to that of GB (0.13 at 400 °C and 0.16 at 450 °C, respectively). The worn surface of IGB in the high-temperature friction test was smoother and more complete than that of GB. The wear under high temperature and load caused the transformation of zinc pyrophosphate to zinc metaphosphate and the formation of a continuous large-area boundary lubrication layer combined with graphite and metallic element on the wear surface. The superior tribology property of IGB could be attributed to the digestion of iron oxides by tribo-chemical reactions and passivation of the exposed dangling covalent bonds. Specifically, the layered structure generated on the IGB wear interface effectively decreased the adhesive forces and prevented the surface from serious damage.

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2024-07-26)

Total Citation Counts(KCI+WOS) (2) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (5) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

* References for papers published after 2023 are currently being built.