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Title: Fabrication and microstructure of cerium doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics by solid-state reaction method

Abstract

Highlights: • We fabricate Ce doped lutetium aluminum garnet ceramics by solid-state method. • The raw materials include Lu{sub 2}O{sub 3} nanopowders synthesized by co-precipitation method. • The density of the transparent ceramics reach 99.7% of the theoretical value. • The optical transmittance of the bulk ceramic at 550 nm was 57.48%. • Some scattering centers decrease the optical characteristic of the ceramic. - Abstract: Polycrystalline Ce{sup 3+} doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics fabricated by one step solid-state reaction method using synthetic nano-sized Lu{sub 2}O{sub 3}, commercial α-Al{sub 2}O{sub 3} and CeO{sub 2} powders were investigated in this paper. The green compacts shaped by the mixed powders were successfully densified into Ce:LuAG transparent ceramics after vacuum sintering at 1750 °C for 10 h. The in-line optical transmittance of the Ce:LuAG ceramic made by home-made Lu{sub 2}O{sub 3} powders could reach 57.48% at 550 nm, which was higher than that of the ceramic made by commercial Lu{sub 2}O{sub 3} powders (22.96%). The microstructure observation showed that light scattering centers caused by micro-pores, aluminum segregation and refraction index inhomogeneities induced the decrease of optical transparency of the Ce:LuAG ceramics, which should be removed and optimized in the future work.

Authors:
 [1];  [1];  [1]; ; ;  [1]
  1. Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200072 (China)
Publication Date:
OSTI Identifier:
22348681
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 55; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM; ALUMINIUM OXIDES; CERAMICS; CERIUM; CERIUM IONS; CERIUM OXIDES; DENSITY; DOPED MATERIALS; LIGHT SCATTERING; LUTETIUM; LUTETIUM OXIDES; MICROSTRUCTURE; NANOSTRUCTURES; POLYCRYSTALS; POWDERS; RAW MATERIALS; SOLIDS; SYNTHESIS

Citation Formats

Li, Junlang, Xu, Jian, Graduate School of Human and Environmental Studies, Division of Materials Function, Kyoto University, Kyoto 606-8501, Shi, Ying, Qi, Hongfang, Xie, Jianjun, and Lei, Fang. Fabrication and microstructure of cerium doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics by solid-state reaction method. United States: N. p., 2014. Web. doi:10.1016/J.MATERRESBULL.2014.04.029.
Li, Junlang, Xu, Jian, Graduate School of Human and Environmental Studies, Division of Materials Function, Kyoto University, Kyoto 606-8501, Shi, Ying, Qi, Hongfang, Xie, Jianjun, & Lei, Fang. Fabrication and microstructure of cerium doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics by solid-state reaction method. United States. doi:10.1016/J.MATERRESBULL.2014.04.029.
Li, Junlang, Xu, Jian, Graduate School of Human and Environmental Studies, Division of Materials Function, Kyoto University, Kyoto 606-8501, Shi, Ying, Qi, Hongfang, Xie, Jianjun, and Lei, Fang. Tue . "Fabrication and microstructure of cerium doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics by solid-state reaction method". United States. doi:10.1016/J.MATERRESBULL.2014.04.029.
@article{osti_22348681,
title = {Fabrication and microstructure of cerium doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics by solid-state reaction method},
author = {Li, Junlang and Xu, Jian and Graduate School of Human and Environmental Studies, Division of Materials Function, Kyoto University, Kyoto 606-8501 and Shi, Ying and Qi, Hongfang and Xie, Jianjun and Lei, Fang},
abstractNote = {Highlights: • We fabricate Ce doped lutetium aluminum garnet ceramics by solid-state method. • The raw materials include Lu{sub 2}O{sub 3} nanopowders synthesized by co-precipitation method. • The density of the transparent ceramics reach 99.7% of the theoretical value. • The optical transmittance of the bulk ceramic at 550 nm was 57.48%. • Some scattering centers decrease the optical characteristic of the ceramic. - Abstract: Polycrystalline Ce{sup 3+} doped lutetium aluminum garnet (Ce:LuAG) transparent ceramics fabricated by one step solid-state reaction method using synthetic nano-sized Lu{sub 2}O{sub 3}, commercial α-Al{sub 2}O{sub 3} and CeO{sub 2} powders were investigated in this paper. The green compacts shaped by the mixed powders were successfully densified into Ce:LuAG transparent ceramics after vacuum sintering at 1750 °C for 10 h. The in-line optical transmittance of the Ce:LuAG ceramic made by home-made Lu{sub 2}O{sub 3} powders could reach 57.48% at 550 nm, which was higher than that of the ceramic made by commercial Lu{sub 2}O{sub 3} powders (22.96%). The microstructure observation showed that light scattering centers caused by micro-pores, aluminum segregation and refraction index inhomogeneities induced the decrease of optical transparency of the Ce:LuAG ceramics, which should be removed and optimized in the future work.},
doi = {10.1016/J.MATERRESBULL.2014.04.029},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 55,
place = {United States},
year = {2014},
month = {7}
}