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Elaboration et caractérisation d'alliages Mg-Ca pour un procédé de minéralisation de l'eau par attaque électrochimique

Abstract : The Mg-Ca alloys are biocompatible and biodegradable alloys widely used for biomedical applications such as bioresorbable implants because of their corrosion rate and degradation behaviour into human body. These solutions have inspired the SEB Group to develop a new process for the mineralization of water by dissolving Mg-Ca alloys. The objective of this thesis is to design new Mg-Ca alloys choosing the appropriate production techniques and optimizing elaborations settings and then, to work on the dissolution process assisted by a current controling of dissolution parameters. Magnesium and calcium being very reactive metal in contact with the atmosphere, the development Mg-Ca alloys was done in a neutral atmosphere. It is possible to obtain a stable microstructure with calcium contents between 0% and 33 atomic% through the intermetallic form Mg2Ca. It's possible to obtain equilibrium microstructures consisting of dendrites (Mg if 0 at.%
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Paul Salero. Elaboration et caractérisation d'alliages Mg-Ca pour un procédé de minéralisation de l'eau par attaque électrochimique. Matériaux. INSA de Lyon, 2015. Français. ⟨NNT : 2015ISAL0045⟩. ⟨tel-02918171⟩

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