Synthesis and characterization of divalent ion-modified ZnF2–AlF3-based glass for mid-infrared fiber applications

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-10-06 DOI:10.1016/j.jallcom.2025.184220

Wenkai Zhao, Ruite Liu, Longfei Zhang, Yiguang Jiang, Long Zhang

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Abstract

In this study, a novel five-component fluoride glass system based on ZnF₂ and AlF₃ was designed, and its glass-forming region was identified. Low field strength elements such as Ca, Pb, and Mg were introduced to enhance glass-forming ability, in accordance with the “confusion principle.” The thermal, optical, mechanical, and chemical properties of the modified glasses were systematically evaluated. Among the modifying ions, Ca²⁺ proved most effective, significantly enhancing thermal stability. The optimized composition, 27ZnF₂–30AlF₃–12SrF₂–13BaF₂–10YF₃–8CaF₂ (mol%), demonstrated excellent comprehensive properties, including high thermal stability (∆T = 108 °C), broad transmission spectra (~7.6 µm), low phonon energy (605 cm^–1), and excellent chemical stability. A large-size, transparent Ca-modified glass sample was successfully fabricated. This new fluoride glass system presents a viable alternative for the development of optical fibers for high-power laser transmission.

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中红外光纤用二价离子改性znf2 - alf3基玻璃的合成与表征

本研究设计了一种基于ZnF2和AlF3的新型五组分氟化物玻璃体系，并确定了其玻璃形成区域。根据“混淆原理”，引入低场强元素如Ca、Pb和Mg来增强玻璃形成能力。系统地评价了改性玻璃的热学、光学、力学和化学性能。在改性离子中，Ca 2 +被证明是最有效的，显著提高了热稳定性。优化后的化合物27ZnF2-30AlF3-12SrF2-13BaF2-10YF3-8CaF2 （mol%）具有较高的热稳定性（∆T = 108℃）、较宽的透射光谱（~7.6µm）、较低的声子能量（605 cm-1）和优异的化学稳定性。成功制备了大尺寸、透明的钙修饰玻璃样品。这种新型氟化物玻璃系统为高功率激光传输光纤的发展提供了一种可行的替代方案。

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.