Formation and Phase Transition of Crystalline Calcium Phosphate on Bioabsorbable Magnesium Alloy under Alkali Condition

Shin Watanabe; Takeshi Yabutsuka; Shigeomi Takai

doi:10.4028/www.scientific.net/KEM.829.3

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Formation and Phase Transition of Crystalline Calcium Phosphate on Bioabsorbable Magnesium Alloy under Alkali Condition
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 829Formation and Phase Transition of Crystalline...

Formation and Phase Transition of Crystalline Calcium Phosphate on Bioabsorbable Magnesium Alloy under Alkali Condition

Abstract:

In order to improve the corrosion resistance, bioabsorbable magnesium (Mg) alloy was immersed in an aqueous solution with three times of Ca²⁺ and HPO₄^2- in comparison with those of conventional SBF at the moderate temperature. After immersion in the solution, the whole surface of Mg alloy was coated with plate-like crystals consisting of octacalcium phosphate (OCP). Then the OCP-coated Mg alloy was immersed in the alkali solution. Although significant change of morphology was not observed, the OCP formed on the Mg alloy was transformed to hydroxyapatite (HAp) under alkali condition.

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Key Engineering Materials (Volume 829)

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3-8

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https://doi.org/10.4028/www.scientific.net/KEM.829.3

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December 2019

Authors:

Shin Watanabe, Takeshi Yabutsuka*, Shigeomi Takai

Keywords:

Aqueous Solution Method, Calcium Phosphate Coatings, Magnesium Alloy, Phase Transition

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