第一种Ga2Se3红外透明硫系陶瓷

IF 6.2 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of The European Ceramic Society Pub Date : 2025-09-12 DOI:10.1016/j.jeurceramsoc.2025.117823

Mathieu Chevereau , Emmanuel Véron , Séverine Brassamin , David Le Coq , Laurent Calvez , Xiang-Hua Zhang , Louisiane Verger , Sébastien Chenu

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引用次数: 0

摘要

采用真空放电等离子烧结（SPS）对Ga2Se3晶体粉末进行致密化，制备了全致密红外透明硫系陶瓷。在λ = 11 µm处，最大透射率为63 %，接近先前测量的单晶最大透射率，宽透明光谱范围（4-16 µm）， λ = 1.55 µm处折射率为2.58。用电子背散射衍射（EBSD）分析了晶粒的微观结构，发现颗粒取向随机，晶粒尺寸呈双峰型分布。这些陶瓷具有预期的硒化材料的力学性能，维氏硬度为287 kg/mm²，杨氏模量为52 GPa。

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First Ga2Se3 infrared transparent chalcogenide ceramics

Fully dense infrared (IR) transparent chalcogenide ceramics were obtained from densification of Ga₂Se₃ crystalline powder by Spark Plasma Sintering (SPS) under vacuum. Promising results were attained such as a maximum transmission of 63 % at λ = 11 µm, close to the maximum value of transmittance previously measured for single crystals, a wide transparency spectral range (4–16 µm), and a refractive index of 2.58 at λ = 1.55 µm. Electron Back Scattered Diffraction (EBSD) was used to elucidate grain microstructure, showing randomly oriented particles and a bimodal grain size distribution. These ceramics exhibit expected mechanical properties for selenide materials with a Vickers hardness of 287 kg/mm² and a Young’s modulus of 52 GPa.

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来源期刊

Journal of The European Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

10.70

自引率

12.30%

发文量

863

审稿时长

35 days

期刊介绍： The Journal of the European Ceramic Society publishes the results of original research and reviews relating to ceramic materials. Papers of either an experimental or theoretical character will be welcomed on a fully international basis. The emphasis is on novel generic science concerning the relationships between processing, microstructure and properties of polycrystalline ceramics consolidated at high temperature. Papers may relate to any of the conventional categories of ceramic: structural, functional, traditional or composite. The central objective is to sustain a high standard of research quality by means of appropriate reviewing procedures.