| 用钙钛矿固化核素废物锶 |
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| 引用本文： | 张瑞珠,郭志猛,贾光耀.用钙钛矿固化核素废物锶[J].硅酸盐学报,2005,33(8):1045-1048. |
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| 作者姓名： | 张瑞珠 郭志猛 贾光耀 |
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| 作者单位： | 北京科技大学,材料科学与工程学院,北京,100083;华北水利水电学院,郑州,450045;北京科技大学,材料科学与工程学院,北京,100083;北京科技大学,材料科学与工程学院,北京,100083;山东工业陶瓷研究设计院,山东,淄博,255031 |
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| 基金项目： | 国家自然科学基金（20476008）资助项目. |
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| 摘 要： | 采用自蔓延高温合成技术制备核废物固化体，并实验研究钙钛矿固化体对锶核素（Sr^2＋）的最大包容量。通过X射线衍射、扫描电镜和浸出法分析了该固化体的物相组成、微观结构和化学稳定性。结果表明：钙钛矿固化体对SrO的包容量可达到36％（质量分数），且产物成分均匀，浸出率低，化学稳定性好，是固化锶核素废物的理想固化体。
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| 关 键 词： | 钙钛矿 物相组成 锶核素废物 固化 自蔓延高温合成 准等静压方法 |
| 文章编号： | 0454-5648(2005)08-1045-04 |
| 收稿时间： | 12 15 2004 12:00AM |
| 修稿时间： | 04 27 2005 12:00AM |
IMMOBILIZATION OF NUCLEAR WASTE STRONTIA BY PEROVSKITE |
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| Zhang Ruizhu,GUO Zhimeng,JIA Guangyao.IMMOBILIZATION OF NUCLEAR WASTE STRONTIA BY PEROVSKITE[J].Journal of The Chinese Ceramic Society,2005,33(8):1045-1048. |
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| Authors: | Zhang Ruizhu GUO Zhimeng JIA Guangyao |
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| Abstract: | High level waste (HLW) loaded wasteforms were prepared by self-propagating high-temperature synthesis, and the maximum loading of Sr2+ for perovskite wasteform was investigated. The phase compositions, microstructure and chemical durability of wasteforms were tested by X-ray diffraction, scanning electric microscopy and the leaching method. The results show that the perovskite wasteform is the perfect material to immobilize the HLW SrO. The maximum loading of SrO in the waste-form can reach 36% in mass fraction with a low leaching rate and good durability. |
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| Keywords: | perovskite phase composition strontia nuclear waste immobilization self-propagating high-temperature synthesis pseudo isostatic pressing method |
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