Preparation and physical characteristics of a lithium-beryllium-substituted fluorapatite

被引：0
|
作者：
Dusan Lexa
机构：
[1] Argonne National Laboratory,the Chemical Technology Division
来源：
Metallurgical and Materials Transactions A | 1999年 / 30卷
关键词：
Material Transaction; Open Porosity; Conversion Reaction; Reactive Sinter; Waste Form;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A lithium-beryllium-substituted fluorapatite, Li0.50Be0.25Ca4.50(PO4)3F, has been prepared by means of a high-temperature reaction between lithium beryllium fluoride, Li2BeF4, and tricalcium phosphate, Ca3(PO4)2. This material has potential application as a waste form for radioactive and toxic fluoride salts. Monitoring of the reaction progress by differential scanning calorimetry indicated that the reaction was initiated by melting of the fluoride salt and that it was fast and complete. While reactive sintering of lithium beryllium fluoride with tricalcium phosphate led to a rather porous product, melting of the reactants with subsequent solidification readily produced a substituted fluorapatite with a near-theoretical bulk density.
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页码：147 / 153
页数：6
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