Publication: Sub-micron grained highly transparent sesquioxide ceramics: Synthesis, processing, and properties
Issued Date
2011-06-29
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ISSN
0277786X
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2-s2.0-79959567636
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Mahidol University
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SCOPUS
Bibliographic Citation
Proceedings of SPIE - The International Society for Optical Engineering. Vol.8039, (2011)
Suggested Citation
J. Ballato, K. Serivalsatit Sub-micron grained highly transparent sesquioxide ceramics: Synthesis, processing, and properties. Proceedings of SPIE - The International Society for Optical Engineering. Vol.8039, (2011). doi:10.1117/12.885238 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/11796
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Title
Sub-micron grained highly transparent sesquioxide ceramics: Synthesis, processing, and properties
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Abstract
Transparent sesquioxide ceramics, e.g. Y 2 O 3 and Sc 2 O 3 are being developed as alternatives to yttrium aluminum garnet (YAG) for high-power solid-state laser systems. In this work, we present the synthesis of these sesquioxide nanopowders by precipitation techniques and the subsequent processing of these nanopowders into sub-micron transparent ceramics using a modifying two-step sintering approach. These transparent ceramics exhibited equivalent transparency to that of analogous single crystals. The microhardness and fracture toughness of the modified two-step sintered ceramic exceeded those of conventionally sintered ceramic by 25% and 70%, respectively. © 2011 SPIE.