Paper Titles
Preparation and Characterization of Transparent Nanocrystalline Ceramics
p.402
Synthesis of Ultrafine MgAl2O4 Powders by Nitrate-Citrate Sol-Gel Combustion Process
p.407
Preparation and Growth Mechanism of Hexagonal MgAl2O4 Spinel Fibers
p.409
Dielectric Properties of MgAl2O4 Transparent Nano-Ceramic
p.412
Highly doped Mn:MgAl2O4 Transparent Ceramics
p.414
Optical Properties and Microstructure of Mn: MgAl2O4 Transparent Ceramic after HIP Treatment
p.417
Fabrication of High Transparent YAG Ceramics by Vacuum Sintering at Low Temperature
p.420
Sinterability of Nd:YAG Powder Prepared by Alcohol-Water Co-Precipitation Method
p.423
Sintering of Transparent Polycrystal Nd:YAG with MgO as Additive
p.426

Highly doped Mn:MgAl2O4 Transparent Ceramics

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Abstract:

To determine the optimal doping concentration, a series of Mn:MgAl2O4 were successfully prepared through vacuum-sintering with the highest doping concentration up to 35%. Samples with a low doping concentration exhibit a light green color. When the doping concentration increases, its color becomes deeper and deeper and when the doping concentration reaches 14%, their colors become brown and deeper brown when their concentrations further increase. The crystal phases of the samples were manifested by XRD measurements and their photoluminescence properties were studied. Combined with phase analysis, optimal doping concentration of transparent ceramics has been determined. In addition, the mechanism for fluorescence of Mn:MgAl2O4 transparent ceramics has also been discussed.

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Periodical:

Key Engineering Materials (Volumes 368-372)

Pages:

414-416

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.414

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Online since:

February 2008

Authors:

Xue Jun Wang, Tie Cheng Lu, Yue Feng Sun

Keywords:

Highly Doped , Mn:MgAl2O4, Photoluminescence (PL), Transparent Ceramic

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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