Phase Composition, Structure, and Hydrolytic Stability of Sodium-Aluminum(Iron) Phosphate Glass Containing Rare-Earth Oxides

被引：8
|
作者：
Stefanovskii, S. V. [1 ]
Stefanovskaya, O. I. [1 ]
Semenova, D. V. [1 ,2 ]
Kadyko, M. I. [1 ]
Danilov, S. S. [3 ]
机构：
[1] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Moscow, Russia
[2] DI Mendeleev Russian Chem Technol Univ, Moscow, Russia
[3] Russian Acad Sci, VI Vernadskii Inst Geochem & Analyt Chem, Moscow, Russia
来源：
GLASS AND CERAMICS | 2018年 / 75卷 / 3-4期
关键词：
hydrolytic stability; infrared spectroscopy; sodium-aluminum(iron) phosphate glasses; rare earth elements; x-ray phase analysis; structure; INFRARED-SPECTRA; AL2O3;
D O I：
10.1007/s10717-018-0034-5
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 phase composition, structure, elemental distribution, and hydrolytic stability of quench-hardened and tempered sodium-aluminum-phosphate (SAP) and sodium-aluminum(iron) phosphate (SAIP) glass materials containing 10 wt.% (above 100%) oxides of rare earth elements (REE) were studied. It is shown that all materials obtained by quench-hardening melts (except La-containing melts) were x-ray amorphous, while slowly cooled (tempered) melts partially or completely crystallized with different phases of orthophosphates being released. The rate of leaching of elements from tempered SAP glasses determined at 90A degrees C is approximately one or two orders of magnitude higher than then for the quench-hardened glasses, and the leach rate of elements from quench-hardened SAIP glasses is lower than from quench-hardened SAP glasses.
引用
收藏
页码：89 / 94
页数：6
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