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Article Dans Une Revue Journal of Applied Physics Année : 2008

The use of a macroscopic formulation describing the effects of dynamic compaction and porosity on plasma sprayed copper

Résumé

Coatings processed by thermal deposition techniques involve porosity. The Laser adhesion test developed for testing bond strength of a coating on its substrate requires a good knowledge of shock wave propagation in such media. Experiments carried out on plasma sprayed copper samples, about 14% porous, with velocity interferometer system for any reflector measurements display the discrepancy of previously used models. Hence, a one-dimensional formulation of the compaction process, based on a simple P-α model, is proposed to improve the correlation between experimental and computed data signals obtained on a plasma sprayed copper under dynamic loading. Besides, this improvement allows the estimation of the bond strength of a plasma sprayed copper on aluminum substrate.
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Dates et versions

hal-00275593 , version 1 (24-04-2008)

Identifiants

Citer

M. Arrigoni, M. Boustie, C. Bolis, L. Berthe, Sophie Barradas, et al.. The use of a macroscopic formulation describing the effects of dynamic compaction and porosity on plasma sprayed copper. Journal of Applied Physics, 2008, 103 (8), 9 p. ⟨10.1063/1.2906186⟩. ⟨hal-00275593⟩
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