The size effect of zircon particles on the friction characteristics of brake lining materials

K. H. Cho, H. Jang, Y. S. Hong, S. J. Kim, R. H. Basch, J. W. Fash

Research output: Contribution to journalArticlepeer-review

94 Citations (Scopus)


This work investigated the effect of zircon particle size on the friction characteristics of brake lining materials. Four different sizes of commercially used zircon particles (nominally 1 μm, 6 μm, 75 μm, and 150 μm in diameter) were used to produce non-steel type lining materials. We focused on the level of the friction coefficient, the oscillation of friction force, and wear resistance of the linings and gray iron counter disks were investigated with respect to the zircon size by using a pad-on-disk type friction tester. Results showed that the size of the zircon particles played a significant role in the formation of friction film, which was closely related to the friction performance. The lining material with coarse zircon particles generated a stable friction film on the lining surface, which provided excellent friction stability with less lining wear. On the other hand, the lining with fine zircon particles produced transient friction films, causing excessive lining wear and poor friction stability. Contrary to the lining wear, excessive disk wear was observed when the lining contained coarse zircon particles.

Original languageEnglish
Pages (from-to)291-297
Number of pages7
Issue number3-4
Publication statusPublished - 2008 Feb 4

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) through the National Research Lab. Program funded by the Ministry of Science and Technology (No. R0A-2007-000-10011-0).


  • Abrasives
  • Brake lining
  • Friction stability
  • Transfer film
  • Wear
  • Zircon particle size

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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