一个Na2O-GeO2-P2O5玻璃系统的结晶行为:一个 (微) 结构,电气和介电研究
Sara Marijan1, Marta Razum1, Kristina Sklepić Kerhač1
1Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia.
Materials (Basel, Switzerland)
|January 23, 2024
概括
热处理的-Ge-P玻璃会影响其性能. 在最佳条件下,玻璃陶具有增强的介电性质和中度离子导电性,适合各种电子应用.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 陶工程 陶工程 陶工程
背景情况:
- 基于酸的玻璃陶 (GCs) 是用于离子电池,微电子包装和湿度传感器的多功能材料.
- 了解热处理 (HT) 与由此产生的微观结构和特性之间的关系对于优化GC性能至关重要.
研究的目的:
- 研究不同热处理温度对Na-Ge-P玻璃陶结构,电气和介电性质的影响.
- 为了将观察到的 (微) 结构与受控材料属性调整的电气和介电行为相关联.
主要方法:
- 通过受控的热处理来制备Na-Ge-P玻璃陶.
- 使用粉末X射线衍射 (PXRD),红外光谱减弱总反射 (IR-ATR) 和扫描电子显微镜-能量分散光谱 (SEM-EDS) 的表征.
- 通过固态阻抗光谱 (SS-IS) 评估电气和介电性质.
主要成果:
- 热处理温度增加了结晶性;在450°C时具有纳米颗粒的无形特征,在550°C时完全结晶的微米级NaPO3颗粒.
- 随着HT温度 (10−8到10−10 Ω−1cm−1) 的增加,直流电导率下降,这归因于NaPO3结晶耗尽移动Na+离子.
- 玻璃陶表现出改善的介电参数:增加介电常数 (~20) 和降低介电损失 (~10-3),450°C的样品显示出最佳性能.
结论:
- 通过热处理控制的结晶精确地改变了Na-Ge-P玻璃陶的微观结构和相位组成.
- 经过450°C热处理的玻璃陶展示了针对特定应用的介电性质,离子导电性和微观结构的有希望的平衡.
- 这项研究强调了通过玻璃陶中受控的热处理过程来微调材料性能的潜力.
关键词:
(微) 结构-财产关系关系.在IR-ATR中,我们可以在PXRD中,PXRD是PXRD.这就是SEM-EDS.固态阻抗光谱学 (SS-IS) 是一种有控制的结晶化.酸玻璃陶的使用方法酸盐玻璃的玻璃更多相关视频
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