ZrO2对低温烧结 BaO-Al2O3-SiO2系微晶玻璃析晶和晶型转变的影响
Source abstract
Abstract
用烧结法制备了化学计量比和高Ba含量的两组BaO-Al2O3-SiO2（BAS）系微晶玻璃，采用差示扫描量热法（DSC）和X射线衍射分析（XRD）等手段研究了ZrO2对BAS系微晶玻璃中六方钡长石析晶和六方钡长石向单斜钡长石晶型转变的影响．研究表明，两组BAS系玻璃的烧结温度低于850℃，晶化温度低于900℃．六方钡长石的析出为整体析晶．不加形核剂晶型转变为整体析晶；添加ZrO2晶型转变为表面析晶．提高Ba含量或添加ZrO2促进六方钡长石的析出和晶粒细化．化学计量比的BAS系微晶玻璃中添加ZrO2明显促进晶型转变．高Ba含量的BAS系微晶玻璃中添加ZrO2表现为抑制品型转变，850℃保温100h不发生转变．
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Glass properties and applications · Thermal and Kinetic Analysis · Luminescence Properties of Advanced Materials
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