Formation of smooth wear surfaces on alumina ceramics by embedding and tribo-sintering of fine wear particles

Koshi Adachi, K. Kato

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

The role of the wear particles for the formation of various wear surfaces, especially mirror-like wear surface, was investigated based on detailed observations of wear surfaces and by introduction of two types of model experiments. Smooth wear surfaces (R(max) < 1μm) are formed by two processes of micro-wear of asperity peaks of alumina grains and filling in surface hollows with fine wear particles. In order to form the mirror-like wear surface (R(max) < 0.1 μm) of alumina, tribo-sintering of wear particles is necessary in addition to necessary condition for smooth surface formation introduced in previous works [K. Adachi, K. Kato, N. Chen, Wear 203-204 (1997) 291-301; K. Adachi, K. Kato, E. Inoue, R. Takizawa, Proc. Int. Trib. Conf. Yokohama (1995) 415-420]. Finally, friction conditions which can give mirror-like wear surfaces as a result of wear are proposed by analyses from both the view points of fracture mechanics [K. Adachi, K. Kato, N. Chen, Wear 203-204 (1997) 291-301; K. Adachi, K. Kato, E. Inoue, R. Takizawa, Proc. Int. Trib. Conf. Yokohama (1995) 415-420] and embedding or sintering of wear particles. (C) 2000 Elsevier Science S.A. All rights reserved.

Original languageEnglish
Pages (from-to)84-91
Number of pages8
JournalWEAR
Volume245
Issue number1-2
DOIs
Publication statusPublished - 2000 Oct 1

Keywords

  • Friction
  • High temperature
  • Mirror wear surface
  • Smooth wear surface
  • Tribo-sintering
  • Wear particle

ASJC Scopus subject areas

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

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