Excimer laser surface modification of engineering ceramics for adhesive bonding

Hau Chung Man, X. M. Zhang, Tai Man Yue, W. S. Lau

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)

Abstract

The surfaces of two engineering ceramics, LT35 (TiC + Al2O3) and Si3N4were irradiated with a high power KrF Excimer laser. The effect of laser pulse frequency, energy intensity and number of pulses upon the surface morphologies and roughness were examined. Conical structures on the treated surfaces were observed after the laser treatment. The ablation depths were found to be dependent upon the type of ceramics and laser processing parameters. The treated surfaces were adhesion bonded using a toughened epoxy resin adhesive. Significant improvement in adhesion shear strength of the bonded specimen with laser-treated surfaces were achieved as compared with those specimen with surfaces in the as-received, SiC-paper-abraded and sand-blasted conditions.
Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalJournal of Materials Processing Technology
Volume66
Issue number1-3
DOIs
Publication statusPublished - 1 Jan 1997

Keywords

  • Adhesive bonding
  • Ceramics
  • Excimer laser
  • Surface modification

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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