NDLI: Bonding, Reactivity, and Mechanical Properties of the Kinetic-Sprayed Deposition of Al for a Thermally Activated Reactive Cu Liner

Content Provider	Springer Nature Link
Author	Won, Juyeon Bae, Gyuyeol Kang, Kicheol Lee, Changhee Kim, See Jo Lee, Kee Ahn Lee, Seong
Copyright Year	2014
Abstract	Pure Al coatings were fabricated on Cu substrates via kinetic spraying to produce a thermally activated reactive Cu liner. The coatings need to endure high-strain rate severe plastic deformation and react with oxygen during penetration or after penetration of the liner. In this study, the Al powder underwent large exothermic reactions with a small particle size and fast heating rate, as determined from the differential scanning calorimetric analysis. Process optimization of the Al deposition was facilitated by defining the “critical velocity” of an Al particle in the kinetic spraying process based on numerical modeling and computations using ABAQUS finite element codes. The simulation results revealed that the critical velocity of an Al particle at room temperature (RT) is 780 m/s and it decreases as the particle temperature increases. Certain process conditions resulted in improved coating properties as the temperature of the particles was affected by the process gas temperature and pressure. The mechanical properties such as the bond strength of the coatings formed under various process conditions were evaluated and compared. The relationships between the resulting properties, processing conditions, and the structures of the coatings are discussed.
Starting Page	818
Ending Page	826
Page Count	9
File Format	PDF
ISSN	10599630
Journal	Journal of Thermal Spray Technology
Volume Number	23
Issue Number	5
e-ISSN	15441016
Language	English
Publisher	Springer US
Publisher Date	2014-03-28
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	aluminum cold spray mechanical properties Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings Characterization and Evaluation of Materials Operating Procedures, Materials Treatment Analytical Chemistry
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Materials Chemistry Condensed Matter Physics

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