Hyperkinetic deposition of nanopowders by supersonic rectangular jet impingement

V. Shukla, G. S. Elliott, B. H. Kear, L. E. McCandlish

Research output: Contribution to journalArticlepeer-review


In a relatively new coating deposition process, Cold Gas Dynamic Spray (CGDS), a supersonic jet is used to propel the feedstock powder onto a substrate to form coating. Pure Titanium (Ti) powder was sprayed by the CGDS process to establish conditions for the buildup of dense and porous Ti coatings on Ti substrates. In order to better understand the mechanism of CGDS coating of titanium on titanium, we performed a detailed study of the initial stages of coating buildup, where we examined initial attachment of Ti particles to the Ti substrate and the subsequent evolution of their morphology. Use of Ti powder as a one of the components of a composite powder in which the other component is biocompatible nanohydroxyapatite powder (to promote bone growth) for use in coating titanium orthopedic implants is currently under investigation.

Original languageEnglish (US)
Pages (from-to)2179-2182
Number of pages4
JournalScripta Materialia
Issue number8-9
StatePublished - May 18 2001
Externally publishedYes


  • Hydroxyapatite
  • Nanopowder, Coating
  • Supersonic
  • Titanium

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys


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