DURABILITY OF ZIRCONIUM-CONTAINING CERAMIC WASTE FORMS IN WATER

被引：30

作者：

KAMIZONO, H

HAYAKAWA, I

MURAOKA, S

机构：

[1] Department of Environmental Safety Research, Japan Atomic Energy Research Institute, Tokai-Mura, Ibaraki-Ken

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 04期

关键词：

DURABILITY; NUCLEAR WASTE; CERAMICS; ZIRCONIUM; GEOLOGY;

D O I：

10.1111/j.1151-2916.1991.tb06942.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The durability of three ceramic waste forms containing Zr as a constituent is examined at 90-degrees and 150-degrees-C in HCl or deionized water. The three ceramic waste forms examined are: (A) 10-mol%-Y2O3-stabilized ZrO2, (B) La2Zr2O7 with a pyrochlore structure, and (C) CaZrO3 with a perovskite structure. Each form contains an appropriate amount of Ce, Nd, and Sr to simulate the leaching behavior of actinides, lanthanides, and alkaline-earth fission products from high-level nuclear waste. Two forms, (A) 10-mol%-Y2O3-stabilized ZrO2 and (B) La2Zr2O7 with a pyrochlore structure, show excellent durability in HCl and deionized water. For example, leach rates of all constituents in the La2ZrO7 waste form are less than about 10(-4)g.m-2.d-1 at 150-degrees-C for a leach time of 32 d in deionized water.

引用

页码：863 / 864

页数：2

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