通过超声处理提高放电等离子烧结YSZ/YAG多层陶瓷的发光性能

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

Ceramics International Pub Date : 2025-09-01 DOI:10.1016/j.ceramint.2025.06.269

V. Paygin, D. Valiev, E. Dvilis, O. Khasanov, D. Deulina, S. Stepanov

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引用次数: 0

摘要

本文研究了超声处理和放电等离子烧结（SPS）对共掺杂Ce3+和Eu3+的钇稳定氧化锆（YSZ）和钇铝石榴石（YAG）多层陶瓷的微观结构、烧结行为和发光性能的协同效应。首次将悬浮预处理和超声压制两种超声方法与SPS相结合制备功能梯度陶瓷（FGCs）。超声处理悬浮液将收缩起始温度降低了约50°C，并增强了陶瓷固结，与传统SPS相比，相对收缩率增加了9%。超声压制通过降低强收缩温度范围，使收缩值提高15%，进一步改善了烧结过程。超声处理使YSZ:1Ce/YAG:1Ce和YSZ:10Eu/YAG:1Ce陶瓷的光致发光效率分别提高了2%和7%。超声压制SPS固结陶瓷的阴极发光强度提高了3倍。这些进展突出了超声辅助和SPS方法在生产高性能发光多层陶瓷和光电子应用方面的潜在结合。

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Enhancing luminescent performance in spark plasma sintered YSZ/YAG multilayer ceramics through ultrasound processing

This study investigates the synergistic effects of ultrasound treatment and spark plasma sintering (SPS) on the microstructure, sintering behavior, and luminescent properties of yttrium-stabilized zirconia (YSZ) and yttrium-aluminum garnet (YAG) co-doped with Ce³⁺ and Eu³⁺ multilayer ceramics. For the first time, two ultrasound methods suspension pretreatment and ultrasound pressing were integrated with SPS to fabricate functionally graded ceramics (FGCs). Ultrasound treatment suspension reduced the shrinkage onset temperature by ∼50 °C and enhanced ceramics consolidation, achieving a 9 % increase in relative shrinkage compared to conventional SPS. Ultrasound pressing further enhances the sintering process by reducing the temperature range for intense shrinkage and increasing the shrinkage value by 15 %. The ultrasound treatment improved photoluminescence (PL) efficiency in YSZ:1Ce/YAG:1Ce and YSZ:10Eu/YAG:1Ce ceramics by 2 and 7 %, respectively. The cathodoluminescence (CL) intensity increased 3-fold for ceramics using ultrasound pressing with SPS consolidation. These advancements highlight the potential combination of ultrasound-assisted and SPS method for producing high-performance luminescent multilayered ceramics with applications in optoelectronics.

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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.