Shock-induced plasticity and fragmentation phenomena during alumina deposition in the vacuum kinetic spraying process

Hyungkwon Park, Juhyuk Kwon, Illjoo Lee, Changhee Lee

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

In a vacuum kinetic spraying system, plasticity and fragmentation have been considered as the main deposition mechanisms because the deposited layer exhibits a flattened morphology with nanosized grains. In this research, Al2O3 film was fabricated, and the microstructure was analyzed using Auto-dyn simulation to investigate the deposition mechanism. Plasticity was generated in a ceramic particle by shock loading, and the particle impact intensity affected the fragmentation behavior and consolidation of a previously deposited layer.

Original languageEnglish
Pages (from-to)44-47
Number of pages4
JournalScripta Materialia
Volume100
DOIs
StatePublished - 2015 Jan 1

Keywords

  • Ceramic plasticity
  • Deposition mechanism
  • Fragmentation
  • Shock wave
  • Vacuum kinetic spraying (VKS) process

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