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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >An easy and economic method for preparing completely reduced basalt glass
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An easy and economic method for preparing completely reduced basalt glass

机译：一种制备完全还原玄武岩玻璃的简便经济方法

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Four basalt glass samples were prepared by fusing basalt rock (powder) with different amounts of sulfur in a platinum crucible at 1550 degreesC for 30 min. Each melt was quenched in air. Sulfur addition to the basalt powder was changed from 0 to 5, 10 and 15 wt%. The prepared glass samples were pulverized for measuring the Mossbauer spectra by the constant acceleration method. The basalt rock spectrum can be analyzed into four peaks; two sites due to Fe3+ with octahedral (Oh) and tetrahedral (Td) symmetry, and the other two due to Fe2+ with Oh and Td symmetry. Pure basalt glass (sulfur-free) consists of four doublets; two of them represent Fe2+(Oh) sites and the third represents Fe2+(Td); while the fourth doublet belongs to Fe2+(Td). The sample containing 5 wt% sulfur has four iron sites also, although there is a slight difference in the relative absorption area when compared with sulfur-free sample. The fraction of Fe3+ in the 5% sulfur sample was estimated to be only 7.1%; i.e., the fraction of Fe2+ was 92.9%. Three iron sites present in the 10% sulfur sample, two of them represent Fe2+ with (Oh) symmetry, while the third one represents Fe2+(Td) site. Mossbauer spectrum of 15 wt% sulfur sample is essentially the same as that of the sample which contains 10 wt%. It is noteworthy that the sulfur content shows a linear relationship with the Fe2+ fraction which is calculated from the Mossbauer spectra of basalt glasses. 7.5 wt% of sulfur is large enough to completely reduce the iron in basalt glass. The reduction of glasses could occur easily and economically using sulfur as a reducing agent. This method is a very easy and economic method for the preparation of completely reduced oxide glass. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 10]
机译：通过在1550℃下于铂坩埚中将含不同量硫的玄武岩岩石（粉末）熔融30分钟来制备四个玄武岩玻璃样品。每种熔体在空气中骤冷。将添加到玄武岩粉末中的硫从0重量％改变为5重量％，10重量％和15重量％。将制备的玻璃样品粉碎以通过恒定加速法测量莫斯鲍尔光谱。玄武岩的光谱可以分为四个峰。 Fe3 +具有八面体（Oh）和四面体（Td）对称性，另外两个因Fe2 +具有Oh和Td对称性。纯玄武岩玻璃（无硫）由四个二重峰组成。其中两个代表Fe2 +（Oh）位，第三个代表Fe2 +（Td）。而第四个双峰属于Fe2 +（Td）。含5wt％硫的样品也具有四个铁位点，尽管与无硫样品相比，相对吸收面积略有不同。 5％硫样品中Fe3 +的比例估计仅为7.1％;即，Fe 2+的比例为92.9％。 10％硫样品中存在三个铁位点，其中两个代表具有（Oh）对称性的Fe2 +，而第三个代表Fe2 +（Td）位置。 15 wt％硫样品的Mossbauer光谱与含10 wt％样品的Mossbauer光谱基本相同。值得注意的是，硫含量与Fe2 +分数呈线性关系，而Fe2 +分数由玄武岩玻璃的Mossbauer光谱计算得出。 7.5 wt％的硫足以完全还原玄武岩玻璃中的铁。使用硫作为还原剂，可以轻松，经济地进行玻璃的还原。该方法是制备完全还原的氧化物玻璃的非常容易且经济的方法。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：10]

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