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Material Properties of Thick Aluminum Coating Made by Cold Gas Dynamic Spray Deposition  

Lee, Jae-Chul (서울대학교 기계항공공학부 대학원)
Ahn, Sung-Hoon (서울대학교 기계항공공학부/정밀기계설계공동연구소)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.10, 2006 , pp. 88-95 More about this Journal
Abstract
Cold gas dynamic spray is a relatively new coating process by which coatings can be produced without significant heating during the process. Cold-spray uses supersonic gas flow to carry metallic powders to the substrate. Its low process temperature can minimize thermal stress and also reduce the deformation of the substrate. Most researches on cold-spray have focused on micro scale coating, but in this study macro scale deposition was conducted. Properties of aluminum layer by cold-spray deposition such as coefficient of thermal expansion (CTE), modulus of elasticity. hardness, and electric conductivity were measured. The results showed that properties of aluminum layer by cold-spray deposition were different from properties of pure aluminum and aluminum alloy.
Keywords
Cold gas dynamic spray; Deposition; Impact; Deposition property;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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