硅酸盐学报

含稀土ZnO–B2O3–SiO2玻璃化学稳定性的研究

单位：1. 内蒙古科技大学材料与冶金学院内蒙古包头014010 2. 河北省沙河玻璃技术研究院河北邢台054000

关键词：硼硅酸盐玻璃化学稳定性稀土氧化物

分类号：TQ171

出版年,卷(期):页码：2015,43(4):0-0

DOI：

摘要：

为了探索稀土氧化物掺杂对硼硅酸盐玻璃化学稳定性的影响，利用熔融冷却法制备了掺杂Nd2O3、Gd2O3和Y2O3的ZnO–B2O3–SiO2系玻璃，在一定的条件下，对玻璃在去离子水、酸、碱液态侵蚀介质中的腐蚀行为进行了研究。利用扫描电镜和能谱分析对腐蚀后的玻璃样品表面形貌和成分变化进行了表征，对酸性侵蚀介质中出现的白色沉淀进行了X射线物性分析，同时利用电感耦合等离子光谱仪测定了去离子水中浸出离子的浓度。结果表明：该系统玻璃的化学稳定性顺序为：耐酸性<耐碱性<耐水性。稀土氧化物的添加降低了玻璃侵蚀过程中的质量损失，减轻了玻璃的腐蚀程度和抑制了各组分的浸出量。Y2O3、Gd2O3和Nd2O3的添加使得该玻璃在去离子水中钠离子的浸出量从148.703 μg/cm2分别降低到43.751，和138.828 μg/cm2。Nd2O3、Gd2O3和Y2O3掺杂对硼硅酸盐玻璃化学稳定性的改善作用顺序为Y2O3> Gd2O3> Nd2O3。

Rare earth oxides like Nd2O3, Gd2O3 and Y2O3 doped zinc-borosilicate glasses were prepared by a melt quenching method, and the corresponding corrosion behavior in aqueous attacking media (i.e., acid, alkali and deionized water) for a certain period of time and under certain conditions was investigated. The surface of glass samples after corrosion was analyzed by scanning electron microscopy and energy dispersive spectrometry. The ingredient of the precipitated product in acid solution was characterized by X-ray diffraction. The concentration of ions in deionized water was determined by inductive coupled plasma and atomic emission spectrometry. The results show that the addition of rare earth oxides into borosilicate glass can reduce its mass loss, alleviate the corrosion degree by attacking media and restrain the leaching of constituents. The doping of Y2O3, Gd2O3 and Nd2O3 into borosilicate glass decreases the content of Na ions in deionized water from 148.703 μg/cm2 to 43.751, 63.984 and 138.828 μg/cm2, respectively. The order of rare earth oxides added into borosilicate glass that affects its chemical stability is Y2O3> Gd2O3> Nd2O3.

基金项目：

基金项目：国家杰出青年基金(51025416)；国家自然科学基金(51202104，51362019)；内蒙古自然科学基金(2012MS0807)；内蒙古草原英才项目；内蒙古高等学校青年科技英才支持计划项目；内蒙古科技大学材料与冶金学院人才孵化计划项目(2014CY012)。

作者简介：

第一作者：王觅堂（1982—），男，博士，副教授。

参考文献：

参考文献:

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