Aluminophosphate Glasses with High Sulfate Content
Aluminophosphate Glasses with High Sulfate Content
复制标题
高硫酸盐含量的铝磷酸盐玻璃
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
A. N. Gulin
中科院分区：
文献类型：
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作者：
S. Stefanovsky;I. Ivanov;A. N. Gulin
为了固定高硫酸盐放射性废物，选择了 Na{sub 2}O-Al{sub 2}O{sub 3}-P{sub 2}O{sub 5}-SO{sub 3} 系统作为玻璃具有相对较低熔点和良好化学耐久性的系统。部分系统 44 Na{sub 2}O、20 Al{sub 2}O{sub 3}、(36-x)P{sub 2}O{sub 5}、x SO{sub 3} 内的玻璃已在 1,000 C 下制备。已确定同化高达 12 摩尔% SO{sub 3} 的可能性。测量了含硫酸盐玻璃的密度、显微硬度、热膨胀系数、转变和变形温度、粘度、电阻率、离子浸出率以及{sup 22}Na、{sup 35}S、{sup 90}Sr和{sup 137}Cs的扩散系数等基本性能。通过红外和 EPR 光谱研究了玻璃结构。
To immobilize a high sulfate radioactive wastes a system Na{sub 2}O-Al{sub 2}O{sub 3}-P{sub 2}O{sub 5}-SO{sub 3} has been chosen as one where glasses have a relatively low melting points and good chemical durability. Glasses within partial system 44 Na{sub 2}O, 20 Al{sub 2}O{sub 3}, (36-x)P{sub 2}O{sub 5}, x SO{sub 3} have been prepared at 1,000 C. A possibility of assimilation up to 12 mole % of SO{sub 3} has been established. The basic properties of sulfate-containing glasses as density, microhardness, thermal expansion coefficient, transformation and deformation temperatures, viscosity, electric resistivity, leach rate of ions and diffusion coefficients of {sup 22}Na, {sup 35}S, {sup 90}Sr and {sup 137}Cs have been measured. Glass structure by infrared and EPR spectroscopies has been investigated.