Abstract

The surface of Ti6Al4V substrate was modified by two ways: micro-powder blasting and co-blast technique. Micro-powder blasting was done using Al 2 O 3 (of three different sizes) or SiC particles. Co-blast technique was done using the same particles co-blasted with hydroxyapatite (HA) particles. The morphology, roughness, deep impact and contact angle were used to characterise the surface modifications. The Ca/P atomic ratio was also determined by co-blast technique. Finally, the biocompatibility of Ti6Al4V substrate was investigated by surface modification in cell culture (osteoblast-like cell, MG63). The contact angle of Ti6Al4V substrate with surface modification is smaller than that without surface modification. The Ti6Al4V substrates by co-blast technique become more hydrophilic by co-blast technique and exhibit better cell proliferation.

Original languageEnglish
Pages (from-to)643-651
Number of pages9
JournalSurface Engineering
Volume35
Issue number7
DOIs
Publication statusPublished - Jul 3 2019

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Keywords

  • cell culture
  • co-blast technique
  • co-blasted particle
  • impact particle
  • Micro-powder blasting
  • physical–chemical properties

ASJC Scopus subject areas

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

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