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CeO2掺量对铝硼硅玻璃固化体抗浸出性能的影响

李鹏 ,  丁新更 ,  杨辉 ,  苏伟 ,  窦天军

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引用本文: 李鹏, 丁新更, 杨辉, 苏伟, 窦天军. CeO2掺量对铝硼硅玻璃固化体抗浸出性能的影响[J]. 无机化学学报, 2013, 29(4): 709-714. doi: 10.3969/j.issn.1001-4861.2013.00.110 shu
Citation:  LI Peng, DING Xin-Geng, YANG Hui, SU Wei, DOU Tian-Jun. Effect of Mass Fraction of CeO2 on Leaching Behavior of Aluminoborosilicate Glass[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(4): 709-714. doi: 10.3969/j.issn.1001-4861.2013.00.110 shu

CeO2掺量对铝硼硅玻璃固化体抗浸出性能的影响

  • 基金项目:

    浙江省重点科技创新团队资金(No.2009R50010)资助项目。 (No.2009R50010)

摘要: 通过XRD、XPS、SEM和ICP-MS等表征方法, 研究不同掺量下CeO2在铝硼硅玻璃固化体中物相的变化及其对抗浸出性能的影响。结果表明:玻璃网络结构中nCe4+:nCe3+=9.25:1, 且CeO2质量分数达到或超过7%时, 固化体内开始析出方铈矿晶体结构。1 d时随着CeO2掺量的增加, 玻璃固化体rCe先降低后升高, 28 d时则表现出逐渐降低的趋势。而在同一CeO2掺量下, rCe随浸出时间的延长逐渐降低, 其中CeO2质量分数为9%的玻璃样品bE的rCe在7 d后稳定在4×10-6 g·m-2·d-1以下, 抗浸出性能较为优异。因此控制CeO2在一定范围内过量析出, 可获得抗浸出性能优于完全溶于玻璃体的固化体。

English

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  • 收稿日期:  2012-10-20
  • 网络出版日期:  2012-12-05
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