Journal
SCRIPTA MATERIALIA
Volume 100, Issue -, Pages 44-47Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2014.12.008
Keywords
Vacuum kinetic spraying (VKS) process; Shock wave; Ceramic plasticity; Fragmentation; Deposition mechanism
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Funding
- National Research Foundation of Korea (NRF) - Korean government (MEST [NRF-2014R1A2A2A05007633]
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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. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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