Micromechanical properties of banded alterations of archaeological glass fragments
Micromechanical properties of banded alterations of archaeological glass fragments
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考古玻璃碎片带状蚀变的微观力学特性
DOI：
10.1016/j.jnoncrysol.2013.05.012
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发表时间：
2013
影响因子：
3.5
通讯作者：
B. Schmidt
中科院分区：
文献类型：
--
作者：
I. Hasdemir;S. Striepe;J. Deubener;B. Schmidt
用维氏压痕研究了拜占庭晚期和现代早期出土的玻璃碎片表面的抗塑性变形。每个玻璃表面都由连续多条带的富硅蚀变层组成，这是长期酸性条件下腐蚀的溶解-再沉淀机制的结果。在原始玻璃/蚀变层界面处，硬度和杨氏模数(>；约90%)的下降非常明显。在蚀变带上的硬度和压痕尺寸显示出相应的向外增加硬度和杨氏模量的模式，这表明多孔腐蚀产物被堵塞。对于具有复杂微观结构的多孔材料，带状蚀变的细观力学性质符合Gibson-Ashby方程。
Resistance to plastic deformation on surfaces of excavated glass fragments of late Byzantinic provenance and from early modern manufacturing was studied using Vickers indentation. Each glass surface consisted of a silica-rich alteration layer of consecutive multiple bands, as a result of a dissolution–reprecipitation mechanism of corrosion under long-time acidic conditions. A sharp drop in decrease of hardness and Young's modulus (> 90%) was evident at the pristine glass/alteration layer interface. Stiffness and indent sizes across the alteration bands revealed a corresponding pattern of increasing hardness and Young's modulus towards the outer parts, which indicated clogging of the porous corrosion products. Micromechanical properties of the banded alteration obeyed Gibson–Ashby equation for porous materials of complex microstructure.
(Na,Zn)-硫磷酸盐玻璃的微观机械性能
影响因子：
3.5
作者：
S. Striepe;J. Deubener;L. Wondraczek
通讯作者：
L. Wondraczek