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

被引：0
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作者：
S. V. Stefanovskii
O. I. Stefanovskaya
D. V. Semenova
M. I. Kadyko
S. S. Danilov
机构：
[1] Russian Academy of Sciences,A. N. Frumkin Institute of Physical Chemistry and Electrochemistry
[2] D. I. Mendeleev Russian Chemical-Technological University,V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry
[3] Russian Academy of Sciences,undefined
来源：
Glass and Ceramics | 2018年 / 75卷
关键词：
hydrolytic stability; infrared spectroscopy; sodium- aluminum(iron) phosphate glasses; rare earth elements; x-ray phase analysis; structure;
D O I：
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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 90°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.
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页码：89 / 94
页数：5
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