Fundamental understanding of the corrosion and biomineralization of MgO surfaces - An in situ AFM study

Giner Ignacio; Keller Adrian; Grundmeier Guido

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Fundamental understanding of the corrosion and biomineralization of MgO surfaces - An in situ AFM study

机译：对MgO表面腐蚀和生物矿化的基本了解-原位AFM研究

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In this study, the corrosion behavior of single crystalline MgO surfaces in simulated body fluid (SBF) is investigated. The corrosion mechanism and the nucleation and growth of surface layers relevant for biomineralization was studied by means of in situ atomic force microscopy (AFM) and complemented with X-ray photoelectron spectroscopy (XPS). At initial immersion stages, the dissolution of the surface dominates the overall corrosion behavior whereas biomineralization becomes relevant at later stages. Square etch pits are observed for the first time at the physiological pH-value. The results are discussed in terms of delicate interplay between the dissolution and growth of surface layers. (C) 2015 Elsevier Ltd. All rights reserved.

机译：在这项研究中，研究了单晶MgO表面在模拟体液（SBF）中的腐蚀行为。通过原位原子力显微镜（AFM）并结合X射线光电子能谱（XPS）研究了与生物矿化有关的腐蚀机理以及表面层的形核和生长。在最初的浸泡阶段，表面的溶解控制着整体的腐蚀行为，而生物矿化在随后的阶段变得很重要。在生理pH值下首次观察到方形蚀刻坑。根据表面层的溶解和生长之间的微妙相互作用来讨论结果。（C）2015 Elsevier Ltd.保留所有权利。

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来源
《Corrosion science》 |2015年第11期|496-503|共8页
作者
Giner Ignacio; Keller Adrian; Grundmeier Guido;
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作者单位

Univ Paderborn, Tech & Macromol Chem, D-33098 Paderborn, Germany;

Univ Paderborn, Tech & Macromol Chem, D-33098 Paderborn, Germany;

Univ Paderborn, Tech & Macromol Chem, D-33098 Paderborn, Germany;

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正文语种 eng
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关键词
MgO(100); Single crystal; Corrosion; pH; Chloride; Pitting mechanism;

机译：MgO（100）;单晶;腐蚀;pH;氯化物;点蚀机理;

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1. Tapping-Mode AFM in Comparison to Contact-Mode AFM as a Tool for in Situ Investigations of Surface Reactions with Reference to Glass Corrosion [J] . I. Schmitz, M. Schreiner, G. Friedbacher Analytical chemistry . 1997,第6期

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Fundamental understanding of the corrosion and biomineralization of MgO surfaces - An in situ AFM study

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