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Etude de l’essai d’adhérence par choc laser (LASAT) sur dépôts plasma d’hydroxyapatite : influence des effets de bord sur les contraintes et la fissuration à l'interface

Abstract : The LASAT (Laser Shock Adhesion Test) represents a promising alternative method to support manufacturers of biomedical prostheses in their process / product developments, entering market. A LASAT method has been developed on biocompatible deposits in order to respond to the problems associated with the implementation of a fast and robust adhesion test that is expected to be standardized in a near future. The thorough study of biocompatible deposits submitted to laser shock debonding has allowed the optimization of a LASAT protocols and the characterization of phenomena impacting the mechanical strength of interfaces (two-dimensional effects) in relation to the debonding analyzed with non-destructive techniques. The study of the feasibility of the technique on various industrial biomaterials, the choice of a complete and transferable test protocol has been supported by the carrying out of cross-evaluations by various methods of measurement (pull-out and scratch tests) or calculations of interfacial mechanical strength. The study of the robustness (repeatability and reproducibility) and the reliability of LASAT have been the main indicators of this study.
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https://pastel.archives-ouvertes.fr/tel-03297255
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Submitted on : Friday, July 23, 2021 - 12:50:10 PM
Last modification on : Wednesday, November 17, 2021 - 12:28:40 PM
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  • HAL Id : tel-03297255, version 1

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Alexandre Cottin. Etude de l’essai d’adhérence par choc laser (LASAT) sur dépôts plasma d’hydroxyapatite : influence des effets de bord sur les contraintes et la fissuration à l'interface. Matériaux. Université Paris sciences et lettres, 2021. Français. ⟨NNT : 2021UPSLM017⟩. ⟨tel-03297255⟩

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