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http://dx.doi.org/10.4191/KCERS.2004.41.11.797

Sintering Properties of UO2+5wt% CeO2Compacts Using Microwave  

Joung, Chang-Young (한국원자력연구소 미래형원자로연료개발부)
Lee, Su-Cheol (한국원자력연구소 미래형원자로연료개발부)
Kim, Si-Hyung (한국원자력연구소 미래형원자로연료개발부)
Kim, Han-Soo (한국원자력연구소 미래형원자로연료개발부)
Lee, Young-Woo (한국원자력연구소 미래형원자로연료개발부)
Publication Information
Journal of the Korean Ceramic Society / v.41, no.11, 2004 , pp. 797-803 More about this Journal
Abstract
The heat generation tests of SiC and MO$_2$ samples by use of a microwave heating system were carried out and UO$_2$+5 wt% CeO$_2$ pellets were sintered in a microwave furnace in an oxidizing atmosphere, by taking into account the characteristics of the microwave heating obtained from the heat generation tests. The characteristics of pellets sintered in a microwave furnace were analysed and compared with those of the pellets sintered in a conventional electrical furnace. The temperature of MO$_2$ pellets with microwave heating increased quickly with input power and the variation of output power depended on the reaction characteristics of SiC and MO$_2$ with microwave. The sintered density of UO$_2$+5wt% CeO$_2$ pellets sintered in the microwave furnace was lower about 2% T.D. than that of the pellets sintered in an electrical furnace with sintering parameters. The microstructure of pellets sintered in microwave furnace has a broader pore distribution but has a larger grain size than that of the pellets sintered in the electrical furnace.
Keywords
Microwave sintering; UO$_2$+5 wt% $CeO_2$pellets; Oxidizing atmosphere;
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