The influence of scandium cations on the properties of YSAG:Sm3+ ceramics

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

Journal of The European Ceramic Society Pub Date : 2025-09-16 DOI:10.1016/j.jeurceramsoc.2025.117830

V.A. Lapin, A.A. Kravtsov, V.E. Suprunchuk, F.F. Malyavin, D.S. Vakalov, E.V. Medyanik, L.V. Tarala, V.A. Tarala

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Abstract

YSAG:Sm³⁺ oxide powders, along with YAG:Sm as a reference material, were synthesized using a chemical precipitation method. The samarium content was fixed at 5 at%, while the scandium content varied from 0 to 50 at% in both the dodecahedral and octahedral sites. The sintering kinetics, microstructure, thermophysical properties, and optical characteristics of the samples were investigated. Results indicated that 50 at% scandium substitution in the octahedral site shifts the absorption peak corresponding to the ⁶H_5/2 → ⁶F_9/2 transition toward the blue region of the spectrum, thereby increasing absorption at the YAG:Nd laser emission wavelength of 1064 nm from 2.9 to 5.1 cm⁻¹. Despite this notable advantage, the composition {Y_2.70Sc_0.15Sm_0.15}[Sc₁Al₁]Al₃O₁₂ exhibited a 25.1 % reduction in thermal conductivity compared to YAG:Sm. Additionally, the coefficient of thermal expansion of YSAG:Sm ceramics was higher than that of YAG:Sm. It was confirmed that YSAG:Sm³⁺ ceramics are promising candidates for use as absorbing cladding in YAG:Nd lasers.

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钪离子对YSAG:Sm3+陶瓷性能的影响

以YAG:Sm为参比物质，采用化学沉淀法合成了YSAG:Sm3+氧化物粉末。在十二面体和八面体中，钐的含量固定在5 at%，而钪的含量在0 ~ 50 at%之间变化。研究了样品的烧结动力学、微观结构、热物理性质和光学特性。结果表明，在八面体位置上，50% 的钪取代使6H5/2→6F9/2跃迁对应的吸收峰向光谱的蓝色区域移动，从而使YAG:Nd激光发射波长1064 nm处的吸收从2.9增加到5.1 cm−1。尽管有这种显著的优势，但与YAG:Sm相比，{Y2.70Sc0.15Sm0.15}[Sc1Al1]Al3O12的导热系数降低了25.1 %。此外，YSAG:Sm陶瓷的热膨胀系数高于YAG:Sm陶瓷。结果表明，YAG: Sm3+陶瓷是YAG:Nd激光器吸收包层的理想材料。

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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.