锆英石资料
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Southwest university of science and technology
本科毕业设计(论文)
锆英石基An4+ 放射性核素固化体物相、结构及固化机理研究
学院名称 国防科技学院
专业名称 辐射防护与环境工程
学生姓名 张欣
学号 20100562
指导教师 丁艺
二〇一四年六月 西南科技大学本科生毕业论文 I
锆英石基An4+ 放射性核素固化体物相、结构及固化机理研究
摘要:本研究以Ce4+作为An4+的模拟替代物质,以ZrO2、SiO2和CeO2粉体为原料,设计了包容Ce4+量为0~5%的锆英石基固化体配方,在1500℃条件下采用高温固相法进行固化体的制备。从而获得锕系模拟元素添加剂量对固化体物相、结构、微观形貌及变生程度的相关信息, 进而为开展锕系元素的锆英石固化研究提供一些必要的科学数据。
关键词:锆英石基;高温固相法;物相;结构
西南科技大学本科生毕业论文 II
The scheme design of fluidized bed incineration
treatment nuclear decommissioning radioactive
graphite
Abstract: The scheme design of the graphite produced by the retirement of radioactive
graphite (i.e. waste graphite) given a characteristics of research on the basic experiments
of the original waste graphite disposal which has a high activity radioactive graphite
fluidized bed burning treatment method. In order to provide the necessary scientific data
and recommendations for the treatment of nuclear decommissioning radioactive graphite,
this scheme design the feasibility study of nuclear retirement radioactive graphite
fluidized bed type.
Key words: nuclear decommissioning, radioactive waste graphite, fluidized bed,
incineration, treatment and disposal
西南科技大学本科生毕业论文 III
目 录
第一章 绪 论 ................................................................................................................... 1
1.1 概述 ...................................................................................................................... 1
1.2 锆英石简述 ............................................................................................................ 3
1.2.1 晶体结构 ..................................................................................................... 3
1.2.2 物理化学性质 ............................................................................................. 3
1.3 放射性废物处理方法研究 .................................................................................... 5
1.3.1固化方法 ...................................................................................................... 5
1.3.2 研究现状 ................................................................................................... 10
1.4 研究目的及意义 .................................................................................................. 10
第二章 实 验 ................................................................................................................... 11
2.1 实验原理 .............................................................................................................. 11
2.2 实验流程 .............................................................................................................. 12
2.2.1主要内容 .................................................................................................... 12
2.3 本章小结 .............................................................................................................. 13
第三章 测试与表征 ......................................................................................................... 14
3.1 XRD测试分析 ...................................................................................................... 19
3.1.1 结果与讨论 ............................................................................................... 19
3.1.2 结论 ........................................................................... 错误!未定义书签。
3.2 SEM测试分析 ...................................................................................................... 20
3.2.1 结果与讨论 ............................................................................................... 20
3.2.2 结论 ........................................................................... 错误!未定义书签。
3.3 本章小结 .............................................................................................................. 22
第四章 结构分析 ............................................................................................................. 22
4.1 简述 ...................................................................................................................... 22
结论 ..................................................................................................................................... 22
致谢 ..................................................................................................................................... 22
参考文献 ............................................................................................................................. 23