Morphology and toughness of abrasive particles and their effects on the friction and wear of friction materials: A case study with zircon and quartz

E. J. Lee, H. J. Hwang, W. G. Lee, K. H. Cho, H. Jang

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

This study examined the friction and wear of brake friction materials containing two different abrasives: zircon and quartz. Commercial grade abrasives with two different sizes (fine and coarse) were compared in terms of the effects of the size, shape, and toughness of the abrasive particles on the friction and wear of the friction material and counter discs. The results showed that the morphology of the abrasives has a considerable effect on the friction effectiveness and wear of the friction couple. The level of friction was higher in the case of using quartz than zircon, and smaller particles were more effective in increasing the coefficient of friction. The toughness of the abrasives also played important roles in determining the friction effectiveness. Improved heat resistance at elevated temperatures was achieved when coarse zircon was used. The wear of the friction material was also dependent on the morphology and toughness of the abrasives and the large abrasive particles produced more wear on the gray iron disc.

Original languageEnglish
Pages (from-to)637-644
Number of pages8
JournalTribology Letters
Volume37
Issue number3
DOIs
Publication statusPublished - 2010 Mar

Keywords

  • Abrasive wear
  • Brakes
  • Friction mechanism
  • Surface roughness
  • Wear mechanism

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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