酸盐玻璃结构对热抛光结果的影响
Aleksandr V Shavlovich1, Ilya V Reshetov1,2, Dmitry K Tagantsev1
1Peter the Great St. Petersburg Polytechnic University, St. Petersburg 195251, Russia.
概括
酸玻璃的热抛光揭示了不同的行为. 甲酸盐玻璃显示初始电流增加由于质子替代,与正酸盐玻璃不同,和独特的亚酸盐裂纹.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 玻璃科学 玻璃科学
背景情况:
- 酸玻璃是具有不同结构的关键材料.
- 热抛光是一种用于修改玻璃性能的技术.
- 了解结构对电气和光学性能的影响是关键.
研究的目的:
- 研究不同酸盐结构 (甲酸盐与正酸盐) 对热抛光行为的影响.
- 在抛光过程中分析酸玻璃的电导率和结构变化.
- 探索诱导非线性光学属性的潜力.
主要方法:
- 在玻璃过渡温度以下,对两个酸盐玻璃 (LA10-甲酸盐,LA30-正酸盐) 进行热抛光.
- 在抛光过程中监控极化电流.
- 潜层和光学特性 (折射率,第二波生成) 的抛光后分析.
主要成果:
- 甲酸玻璃 (LA10) 呈现出极化电流的初始增加,归因于移动质子替代,与正酸玻璃 (LA30) 不同.
- 尽管含量相似,但LA10的电流比LA30高10倍.
- LA10形成了亚层裂,而LA30显示了亚层的结晶 - - 这是在Tg以下的直流电场下进行的新奇观察.
- 在抛光后的LA30玻璃中观察到第二次波生成,但两者的折射率保持不变.
结论:
- 酸盐玻璃结构在热抛光过程中显著影响电传输和结构演变.
- 在甲酸盐玻璃中的质子流动性可以在特定条件下提高导电性.
- 在酸盐玻璃中,直流电场诱导的低于Tg的结晶是一种新发现的现象.
- 通过热抛光,LA30玻璃具有非线性光学应用的潜力.
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