Self-propagating high-temperature synthesis for immobilization of high-level waste in mineral-like ceramics: 1. Synthesis and study of titanate ceramics based on perovskite and zirconolite

被引：15

作者：

Barinova T.V. ^{[1
]}

Borovinskaya I.P. ^{[1
]}

Ratnikov V.I. ^{[1
]}

Ignat'eva T.I. ^{[1
]}

机构：

[1] Institute of Structural Macrokinetics and Materials Science Problems, Russian Academy of Sciences, Chernogolovka, Moscow Oblast

来源：

Radiochemistry | 2008年 / 50卷 / 3期

关键词：

28.41.Kw; 82.33.Vx;

D O I：

10.1134/S1066362208030181

中图分类号：

学科分类号：

摘要：

Preparation of ceramics based on synthetic perovskite and zirconolite (analogs of titanate minerals) using self-propagating high-temperature synthesis (SHS) was studied. Ceramics was prepared as matrix material for immobilization of high-level waste (HLW). Using model HLW, the optimal synthetic conditions were determined which allow preparation of compact low-porosity material (in the form of cylindrical blocks) exhibiting high strength and low rate of leaching of Cs, Sr, Y, Ce, and La into double-distilled water. The phase composition and micro structure of the resulting materials were studied. As found, immobilization of Cs is accompanied by significant loss of this element. © 2008 MAIK Nauka.

引用

页码：316 / 320

页数：4

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