选择P2O5-B2O3-ZnO-SnO(PBZS)低熔玻璃体系,利用Raman光谱、差热分析(DTA)和热膨胀仪等研究玻璃中SnO/ZnO比对玻璃结构和性能的影响,分析了该体系玻璃特征温度(Tg及Tf)、热膨胀系数(α)、体积电阻率(Rv)及其变化规律.结果表明:在该体系中,随着SnO/ZnO比的上升,玻璃Raman光谱特征峰1080cm-1和775cm-1都向低波数漂移,形成无定形的BPO4和ZnSn2(PO4)2聚合体;玻璃的特征温度先上升后下降,膨胀系数先下降后上升,在SnO/ZnO等于1.25附近出现极值;玻璃的电阻率随着温度的上升快速下降,但在250℃时,基本上只与温度有关,而与SnO/ZnO比无关.
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