在Pr2O3-修饰化玻璃系统中对结构-属性-屏蔽关系的全面分析
M S Gaafar1, S Y Marzouk2, H M Elsaghier3
1National Institute of Standards, Tersa Str, P.O. Box 136, El-Haram, El-Giza, 12211, Egypt.
Scientific reports
|December 9, 2025
概括
这项研究检查了含有不同氧化物 (Pr2O3) 含量的矿基玻璃. 增加Pr2O3提高了结构刚性,热稳定性和玛屏蔽性能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 玻璃科学 玻璃科学
背景情况:
- 基于化石的玻璃是各种应用的有希望的材料,因为它们具有独特的特性.
- 了解这些眼镜中的结构属性关系对于优化其性能至关重要.
- 加入稀土氧化物,如氧化物 (Pr2O3),可以显著影响玻璃的特性.
研究的目的:
- 为了研究一个新的化玻璃系列的结构,热,机械和马射线屏蔽性能.
- 分析不同氧化 (Pr2O3) 度对这些特性的影响.
- 建立结构参数,机械性能和屏蔽性能之间的相关性.
主要方法:
- 合成的玻璃样本的组成60TeO2-12.5Nb2O5-12.5ZnO-(15-x) LiF-xPr2O3 (x = 0.55.0 摩尔%).
- 使用射线分布函数 (RDF) 分析,高斯拟合,X射线衍射 (XRD) 和里埃变换红外 (FTIR) 光谱学进行了表征.
- 通过玻璃过渡温度 (Tg) 和初始结晶温度 (Tx) 确定热稳定性.
- 计算机械性能,包括散装模量 (Kexp) 和平均原子环直径.
- 对马射线屏蔽参数的评估.
主要成果:
- 添加Pr2O3诱导了从三角形金字塔 (TeO3) 到三角形双金字塔 (TeO4) 单位的结构转变,增强了玻璃的刚性.
- 在摩尔体积 (Vm) 和实验散装模量 (Kexp) 之间发现了对数相关性.
- 增加的Pr2O3含量导致更高的玻璃过渡和结晶温度,表明更好的热稳定性.
- 这些眼镜表现出了卓越的马射线屏蔽能力,性能与结构和热性增强相关.
结论:
- 氧化物含量极大地影响了基于矿的玻璃系列的结构,热,机械和屏蔽性能.
- 这些玻璃在需要强大的热稳定性和有效的马射线屏蔽的应用中具有显著的潜力.
- 这些发现为设计先进的功能性玻璃材料提供了宝贵的见解.
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