Formation process of akaganeite in the simulated wet-dry cycles atmospheric environment
Formation process of akaganeite in the simulated wet-dry cycles atmospheric environment
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模拟干湿循环大气环境中赤铜矿的形成过程
DOI：
10.1016/j.jmst.2017.06.020
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发表时间：
2017-06
影响因子：
10.9
通讯作者：
Li Y.
中科院分区：
文献类型：
--
作者：
Xiao H.;Ye W.;Song X.;Ma Y.;Li Y.
为了阐明长期暴露条件下钾霞石的形成机理和条件，通过室内模拟实验研究了前期腐蚀结果对钾霞石形成的影响。结合XRD、FTIR、SEM和EPMA等测试手段，对表面形成的锈层进行了鉴定。因此，锈层的性质和锈层中腐蚀性物质的量随暴露时间的延长而变化。其中，与腐蚀初期相比，反复干湿循环后的锈层结构不利于赤霞铁矿的形成。锈层去除后，Cl元素在锈层与基体的界面处富集，参与了赤霞铁矿的形成。在盐沉积速率较低的条件下，盐沉积的累积效应有助于钾霞石的形成。
In order to clarify the formation mechanism and conditions for akaganeite in long-term exposure, the influence of the former corrosion results on akaganeite formation was investigated by simulated experiments in laboratory. The combination of XRD, FTIR, SEM and EPMA enabled the identification of the rust layer formed on the surface. Accordingly, the nature of the rust layer and the amount of the corrosive species in the rust layer varied with the extension of the exposure. Among them, comparing with the corrosion condition in initial stage, the structure of rust layer after repeated wet-dry cycles was disadvantage for akaganeite formation. Element Cl aggregated at the interface between rust and substrate in the thick part can participate in the formation of akaganeite after the rust layer covered removed. The accumulation effect of salt deposited contributed to akaganeite formation under the condition that salt deposition rate was relatively low.
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影响因子：
4.6
作者：
Ma, Yuantai;Li, Ying;Wang, Fuhui
通讯作者：
Wang, Fuhui
影响因子：
8.3
作者：
RAMAN, A;KUBAN, B;RAZVAN, A
通讯作者：
RAZVAN, A
影响因子：
8.3
作者：
Refait, P;Genin, JMR
通讯作者：
Genin, JMR
影响因子：
8.3
作者：
de la Fuente, D.;Alcantara, J.;Morcillo, M.
通讯作者：
Morcillo, M.
影响因子：
8.3
作者：
S. Nasrazadani
通讯作者：
S. Nasrazadani