陕西科技大学学报（自然科学版）
陝西科技大學學報（自然科學版）
협서과기대학학보（자연과학판）
JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
2009年
2期
1-7,12
,共8页
殷海荣%吕承珍%李慧%唐保军
慇海榮%呂承珍%李慧%唐保軍
은해영%려승진%리혜%당보군
析晶动力学%玻璃转变动力学%LAS微晶玻璃
析晶動力學%玻璃轉變動力學%LAS微晶玻璃
석정동역학%파리전변동역학%LAS미정파리
crystallization kinetics%glass transition kinetics%LAS glass-ceramics
以零膨胀Li2O-Al2O3-SiO2透明微晶玻璃为研究对象,采用示差扫描量热法(DSC)研究了无磷和含磷玻璃的析晶动力学和玻璃转变动力学行为.结果发现,引入少量的磷化物使得玻璃的析晶峰温度和玻璃转变温度降低,玻璃的析晶活化能和玻璃转变活化能增大,晶体生长指数n减小,使玻璃网络结构重排困难.
以零膨脹Li2O-Al2O3-SiO2透明微晶玻璃為研究對象,採用示差掃描量熱法(DSC)研究瞭無燐和含燐玻璃的析晶動力學和玻璃轉變動力學行為.結果髮現,引入少量的燐化物使得玻璃的析晶峰溫度和玻璃轉變溫度降低,玻璃的析晶活化能和玻璃轉變活化能增大,晶體生長指數n減小,使玻璃網絡結構重排睏難.
이령팽창Li2O-Al2O3-SiO2투명미정파리위연구대상,채용시차소묘량열법(DSC)연구료무린화함린파리적석정동역학화파리전변동역학행위.결과발현,인입소량적린화물사득파리적석정봉온도화파리전변온도강저,파리적석정활화능화파리전변활화능증대,정체생장지수n감소,사파리망락결구중배곤난.
The crystallization and glass transition kinetics of the Li2O-Al2O3-SiO2 transparent glass ceramics which contains phosphorous and free phosphorous were investigated by the differential scanning calorimetric (DSC), derivative differential scanning calorimetric (DDSC) and X-ray diffraction (XRD). The results show the decreasing of crystallization peak temperature (Tp) and the glass transition temperature (Tg). The crystallization active energy (E) and glass transition active energy (Eg) increase when the phosphorus pentoxide was added, at the same time, the Avrami exponent (n) decreases and glass network structure rearranges difficultly.
