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Eutectic Nanocomposites for Thermophotovoltaic Application
한영환,이재형,Kazuyuki Kakegawa 한국전기전자재료학회 2010 Transactions on Electrical and Electronic Material Vol.11 No.6
The ground amorphous powder was consolidated into a dense sintered body with a typical ultrafine Al2O3-GdAlO3eutectic structure by spark plasma sintering (SPS). Sintered material with ultrafine and dense eutectic structure was obtained by an appropriate combination of rapid quenching and SPS at lower temperature and more quickly than by conventional sintering. The Al2O3-based rare earth eutectic ceramics for solar cell emitters are believed to have a higher efficiency and the Al2O3 based eutectic ceramics with ultrafine grains will be one of the promising materials showing excellent selective emitter characteristics.
Numerical study of a SiC mould subjected to a spark plasma sintering process
Byon, Chan,Li, Ming-Han,Kakegawa, Kazuyuki,Han, Young-Hwan,Lee, Dong-Yeon Elsevier 2015 Scripta materialia Vol.96 No.-
<P>Spark plasma sintering (SPS) is a material processing technique based on the Joule heating of a mould and powder under an electrical pulse or DC current. This study demonstrates the use of silicon carbide (SiC). A finite-element numerical study was performed to predict the temperature and stress distributions during SPS. In addition, it was found experimentally that SPS using SiC exhibits similar behaviour to that with a conventional graphite die.</P>
Eutectic Nanocomposites for Thermophotovoltaic Application
Han, Young-Hwan,Lee, Jae-Hyung,Kakegawa, Kazuyuki The Korean Institute of Electrical and Electronic 2010 Transactions on Electrical and Electronic Material Vol.11 No.6
The ground amorphous powder was consolidated into a dense sintered body with a typical ultrafine $Al_2O_3-GdAlO_3$ eutectic structure by spark plasma sintering (SPS). Sintered material with ultrafine and dense eutectic structure was obtained by an appropriate combination of rapid quenching and SPS at lower temperature and more quickly than by conventional sintering. The $Al_2O_3$-based rare earth eutectic ceramics for solar cell emitters are believed to have a higher efficiency and the $Al_2O_3$ based eutectic ceramics with ultrafine grains will be one of the promising materials showing excellent selective emitter characteristics.