Fabrication and Properties of Ceramics/Single Crystal Composites Based on Yttrium Aluminum Garnet

IF 0.6 4区材料科学 Q4 MATERIALS SCIENCE, CERAMICS Glass and Ceramics Pub Date : 2024-10-01 DOI:10.1007/s10717-024-00688-9

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

{"title":"Fabrication and Properties of Ceramics/Single Crystal Composites Based on Yttrium Aluminum Garnet","authors":"F. F. Malyavin, V. E. Suprunchuk, V. A. Tarala, A. A. Kravtsov, D. S. Vakalov, V. A. Lapin, K. V. Kungurtsev, E. V. Medyanik, L. V. Tarala","doi":"10.1007/s10717-024-00688-9","DOIUrl":null,"url":null,"abstract":"The optical properties and microstructure of composites based on yttrium aluminum garnet were studied. The composites were produced by vacuum sintering of pre-formed compacts of nanocrystalline powder (Y3Al4.995Cr0.005O12) with a YAG single crystal. The transmittance spectra of the composite samples exhibited the presence of Cr3+ absorption bands following vacuum sintering, as well as Cr4+ bands following annealing in air. The impact of varying heating rates during vacuum sintering on the transmittance of composite samples was examined. It was determined that the optimal heating rate during the vacuum sintering of composites should be less or equal to 120 K/h. In addition, the impact of the vacuum sintering temperature on the optical properties and microstructure of YAG:Cr (ceramics)/YAG:Nd (single crystal) composite samples was investigated. The samples exhibiting the highest transparency were obtained at a temperature of 1850°C. Microstructure studies of the composites revealed the presence of regular residual porosity in the vicinity of the interface, predominantly located in the YAG single crystal. It is postulated that the formation of these pores occurs during the fusion of ceramic grains with a single crystal during sintering.","PeriodicalId":579,"journal":{"name":"Glass and Ceramics","volume":"81 5-6","pages":"230 - 236"},"PeriodicalIF":0.6000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Glass and Ceramics","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10717-024-00688-9","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

The optical properties and microstructure of composites based on yttrium aluminum garnet were studied. The composites were produced by vacuum sintering of pre-formed compacts of nanocrystalline powder (Y₃Al_4.995Cr_0.005O₁₂) with a YAG single crystal. The transmittance spectra of the composite samples exhibited the presence of Cr³⁺ absorption bands following vacuum sintering, as well as Cr⁴⁺ bands following annealing in air. The impact of varying heating rates during vacuum sintering on the transmittance of composite samples was examined. It was determined that the optimal heating rate during the vacuum sintering of composites should be less or equal to 120 K/h. In addition, the impact of the vacuum sintering temperature on the optical properties and microstructure of YAG:Cr (ceramics)/YAG:Nd (single crystal) composite samples was investigated. The samples exhibiting the highest transparency were obtained at a temperature of 1850°C. Microstructure studies of the composites revealed the presence of regular residual porosity in the vicinity of the interface, predominantly located in the YAG single crystal. It is postulated that the formation of these pores occurs during the fusion of ceramic grains with a single crystal during sintering.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于钇铝石榴石的陶瓷/单晶复合材料的制造与特性

研究了基于钇铝石榴石的复合材料的光学特性和微观结构。这些复合材料是通过真空烧结预先成型的纳米晶粉末（Y3Al4.995Cr0.005O12）与钇铝石榴石单晶的压制物而制成的。复合样品的透射光谱显示，真空烧结后出现了 Cr3+ 吸收带，在空气中退火后也出现了 Cr4+ 吸收带。研究了真空烧结过程中不同加热速率对复合样品透射率的影响。结果表明，复合材料真空烧结过程中的最佳加热速率应小于或等于 120 K/h。此外，还研究了真空烧结温度对 YAG：Cr（陶瓷）/YAG：Nd（单晶）复合材料样品的光学特性和微观结构的影响。在 1850°C 的温度下，样品的透明度最高。复合材料的微观结构研究表明，在界面附近存在规则的残留孔隙，主要位于 YAG 单晶中。据推测，这些孔隙是在烧结过程中陶瓷晶粒与单晶体融合时形成的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Glass and Ceramics 工程技术-材料科学：硅酸盐

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The journal''s broad coverage includes developments in the areas of silicate chemistry, mineralogy and metallurgy, crystal chemistry, solid state reactions, raw materials, phase equilibria, reaction kinetics, physicochemical analysis, physics of dielectrics, and refractories, among others.