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Author

Sohn, Dong-Seong
Innovative Nuclear FUEL(INFUEL)
Research Interests
  • Nuclear fuel design

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Measurement of the thermal properties of gadolinium and dysprosium titanate

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Title
Measurement of the thermal properties of gadolinium and dysprosium titanate
Author
Lee, Byung-HoKim, Han-SooLee, Sang-HyunSohn, Dong-Seong
Keywords
Dysprosium titanate; Gadolinium titanate; Neutron absorbing element; Thermal properties
Issue Date
200704
Publisher
ELSEVIER SCIENCE BV
Citation
THERMOCHIMICA ACTA, v.455, no.1-2, pp.100 - 104
Abstract
Gadolinium titanate (GdxTiyOz) and dysprosium titanate (DyxTiyOz) have been developed as burnable poison and neutron absorbing materials in nuclear application, respectively. They have high neutron absorption capability and unique neutron absorption efficiency. Since their thermal properties have not been well established as yet, their specific heat capacity and thermal diffusivity were measured and they were used to derive the thermal conductivity for the GdxTiyOz and DyxTiyOz with various compositions from room temperature to 1000 °C. We also investigated the effect of the sintering temperature on the thermal properties. Although they are chemically and physically similar, the trend of the thermal conductivity of GdxTiyOz and DyxTiyOz differed significantly. The measured thermal properties can be used for the safety and performance analysis which includes the precise temperature calculation for irradiation test and for the design for nuclear application.
URI
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DOI
http://dx.doi.org/10.1016/j.tca.2006.11.033
ISSN
0040-6031
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