CAJ | 학술논문

铁磷酸盐玻璃陶瓷可用于固化高放核废物。通过改变原料粉末尺寸和热处理的升温速率来控制成核的均匀性和晶核的生长速度，研究了在独居石玻璃陶瓷固化体中晶粒生长对固化体化学稳定性的影响。结果表明：粉末尺寸越小，越有利于形成均匀的晶核，固化体的化学稳定性越好，当粉末粒度小于38μm时浸出率达到最低值；热处理的升温速率越慢，所形成的微晶尺寸越均匀，固化体的化学稳定性越好，当升温速率为1℃／min时，样品的浸出率最低。
철린산염파리도자가용우고화고방핵폐물。통과개변원료분말척촌화열처리적승온속솔래공제성핵적균균성화정핵적생장속도，연구료재독거석파리도자고화체중정립생장대고화체화학은정성적영향。결과표명：분말척촌월소，월유리우형성균균적정핵，고화체적화학은정성월호，당분말립도소우38μm시침출솔체도최저치；열처리적승온속솔월만，소형성적미정척촌월균균，고화체적화학은정성월호，당승온속솔위1℃／min시，양품적침출솔최저。
This paper presented the crystallization study of iron phosphate glass-ceramic which is a simpli- fied version of a new unclear host to be a potential candidate for the immobilization of highly concentrated radioactive wastes. The impact of changing the heating rate or the size of the glass powders during the ex- periment on the growth of the crystallization had been studied. It is observed that the slower the heating rate is, the more balanced the crystal is, and the smaller the size is, the more balanced the crystal is. The growth of the crystal is more balanced with slowing down the heating rate and decreasing the size of glass powders. The leaching rate of the samples is lowest when the size of the glass powders is less than 38μm in diameter and the heating rate is 1℃/min.