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研究经电子束电磁辐照BaO-SrO-TiO2-SiO2系统玻璃后,等温热处理制成的具有非铁电性能的极性微晶玻璃材料.利用可见光分光光度计,红外光谱(IR),X射线衍射分析(XRD),扫描电镜(SEM)探讨电子束辐照对玻璃结构和玻璃微晶化过程的影响.研究表明,由于电子束辐照,玻璃结构中形成氧离子缺位,造成E'色心,使玻璃的外观颜色随着辐照剂量的加大而由浅到深咖啡色.在光谱的250和560cm-1波段呈现吸收峰,证明玻璃结构发生变化,[TiO5]多面体出现,玻璃网络形成体团聚状态变化,利于玻璃微晶化及细化微晶显微结构.电镜分析证明微晶玻璃具有细化致密的显微结构,定向程度提高.d33压电测量仪测量结果表明微晶玻璃d33数值也随之增大,有多达30%的提高.

参考文献

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