（Y0.25Gd0.25Lu0.25Sc0.25）2-2 xTm2xO3高熵透明陶瓷光学力学性能的协同演化及相关机制

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-06-01 DOI:10.1016/j.ceramint.2025.02.197

Bin Wang , Yan Hao , Yongzhi Luo , Zhuoying Jia , Chao Xiao , Wenlong Zhang , Shengquan Yu

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引用次数: 0

摘要

本研究采用真空烧结法制备了高透明（Y0.25Gd0.25Lu0.25Sc0.25）2-2xTm2xO3高熵陶瓷，并系统地考察了Tm2O3的作用。该陶瓷为Y2O3立方晶结构的单相固溶体，Tm2O3在致密化过程中促进晶粒长大，平均晶粒尺寸从5.25 μm增大到16.41 μm，透射率在5.29 μm处显著提高到81%，陶瓷硬度达到10.76±0.17 GPa。由于其优异的2-7 μm透光率和良好的力学性能，在中波大气窗口中具有潜在的应用前景。

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Co-evolution and correlation mechanism of optical and mechanical properties of (Y0.25Gd0.25Lu0.25Sc0.25)2-2 xTm2xO3 high-entropy transparent ceramics

In this study, a highly transparent (Y_0.25Gd_0.25Lu_0.25Sc_0.25)_2-2xTm_2xO₃ high-entropy ceramic was prepared by vacuum sintering, and the effect of Tm₂O₃ was systematically investigated. The ceramic has a single-phase solid solution with the cubic crystal structure of Y₂O₃, and Tm₂O₃ promotes grain growth along with densification, the average grain size grows from 5.25 to 16.41 μm, and the transmittance can be significantly increased to 81 % at 5.29 μm, and the hardness of the ceramic reaches 10.76 ± 0.17 GPa. Due to its excellent transmittance at 2–7 μm and good mechanical properties, it has potential applications in medium-wave atmospheric windows.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.