Effects of neodymium and gadolinium on weathering resistance of ZnO-B2O3-SiO2 glass

The ZnO-B203-SiO2 glass doped with Nd2O3 and Gd2O3 was prepared by high temperature melt cooling method. The standard sample of the zinc borosilicate glass was placed in the constant temperature and humidity chamber in order to simulate the atmospheric corrosion process. The surface of the weathered...

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Bibliographic Details
Published inJournal of rare earths Vol. 32; no. 9; pp. 874 - 878
Main Author 李雄伟 李梅 王觅堂 柳召刚 胡艳宏 田俊虎
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2014
Subjects
borosilicate glass
rare earths
weathering resistance
原子发射光谱法
扫描电子显微镜
氧化钆
氧化钕
玻璃表面
电感耦合等离子体
硼硅酸盐玻璃
风化
borosilicate glass
weathering resistance
rare earths
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ISSN1002-0721
2509-4963
DOI10.1016/S1002-0721(14)60156-3

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Summary:The ZnO-B203-SiO2 glass doped with Nd2O3 and Gd2O3 was prepared by high temperature melt cooling method. The standard sample of the zinc borosilicate glass was placed in the constant temperature and humidity chamber in order to simulate the atmospheric corrosion process. The surface of the weathered glass was analyzed by scanning electron microscope and energy disper- sive spectrometry and the filtrate was analyzed by inductively coupled plasma-atomic emission spectrometry. The results showed that humidity was the most important factor influencing weathering; the morphology of glass surface of altered layer and the product on the surface was observed; the corroding degree of the zinc borosilicate glass doped with Nd or Gd was significantly lighter than that of the base glass. Adding rare earth Nd or Gd in the zinc borosilicate glass could suppress Na, Zn, Si ion release in weathering.
Bibliography:LI Xiongwei , LI Mei , WANG Mitang , LIU Zhaogang , HU Yanhong , TIAN Junhu （School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China）
11-2788/TF
The ZnO-B203-SiO2 glass doped with Nd2O3 and Gd2O3 was prepared by high temperature melt cooling method. The standard sample of the zinc borosilicate glass was placed in the constant temperature and humidity chamber in order to simulate the atmospheric corrosion process. The surface of the weathered glass was analyzed by scanning electron microscope and energy disper- sive spectrometry and the filtrate was analyzed by inductively coupled plasma-atomic emission spectrometry. The results showed that humidity was the most important factor influencing weathering; the morphology of glass surface of altered layer and the product on the surface was observed; the corroding degree of the zinc borosilicate glass doped with Nd or Gd was significantly lighter than that of the base glass. Adding rare earth Nd or Gd in the zinc borosilicate glass could suppress Na, Zn, Si ion release in weathering.
borosilicate glass; weathering resistance; rare earths
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(14)60156-3