Microstructure and properties characterization of Yb:Lu2O3 transparent ceramics from co-precipitated nano-powders

Year: 2023

Authors: Liu ZY., Feng YG., Chen HH., Toci G., Pirri A., Patrizi B., Hreniak D., Vannini M., Li J.

Autors Affiliation: Chinese Acad Sci, Shanghai Inst Ceram, Transparent Ceram Res Ctr, Shanghai, Peoples R China; Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China; Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha, Peoples R China; Henan Univ Technol, Sch Mat Sci & Engn, Zhengzhou, Peoples R China; CNR, INO, Via Madonna Piano 10C, Sesto Fiorentino, Fi, Italy; CNR, Ist Fis Applicata N Carrara, IFAC, Via Madonna Piano 10C, Sesto Fiorentino, Fi, Italy; Polish Acad Sci, Inst Low Temp & Struct Res, Wroclaw, Poland; Chinese Acad Sci, Shanghai Inst Ceram, Transparent Ceram Res Ctr, Shanghai 201899, Peoples R China.

Abstract: 5at.% Yb:Lu2O3 transparent ceramics were fabricated successfully by vacuum sintering along with hot isostatic pressing posttreatment from the nanopowders. The influences of calcination temperature on morphology and microstructures of powders and ceramics were studied systematically. The optimal ceramic sample from the nanopowder calcined at 1050 degrees C shows uniform and dense microstructure with the in-line transmittance of 81.5% at 1100 nm. The results of the thermal measurements, that is, thermal conductivity and specific heat, were related to the changes occurring in the microstructure of the ceramics studied. It was shown on this basis that appropriate control of the technological process of sintering ceramics makes it possible to obtain laser ceramics with very good thermal properties as well as maintaining their high optical quality. Concerning the laser performance, the highest-optical quality 5at.% Yb:Lu2O3 sample was pumped in quasi-continuous wave conditions measuring a maximum output power of 2.59 W with a corresponding slope efficiency of 32.4%.

Journal/Review: INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY

Volume: 20 (6)      Pages from: 3365  to: 3375

More Information: National Key R&D Program of China,Grant/Award Number: 2022YFB3605704;International Partnership Program of Chinese Academy of Sciences,Grant/Award Number:121631KYSB20200039; International Cooperation Project of Shanghai Science and Technology Commission,Grant/Award Number: 20520750200;National Center for Research and Development, Grant/Award Number:WPC2/1/SCAPOL/2021; Joint Research Project between Chinese Academy of Sciences and National Research Council;Scientific Research Fund of Hunan Provincial Education Department, Grant/Award Number: 22C0140
KeyWords: laser performance; microstructures; optical properties; thermal properties; Yb; Lu2O3 transparent ceramics
DOI: 10.1111/ijac.14441

Citations: 1
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