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

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Sintering behavior of U-80 at.%Zr powder compacts in a vacuum environment

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Title
Sintering behavior of U-80 at.%Zr powder compacts in a vacuum environment
Author
Kim, Tae-KyuLee, Chong-TakSohn, Dong-Seong
Issue Date
200801
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF NUCLEAR MATERIALS, v.372, no.2-3, pp.394 - 399
Abstract
Sintering behavior of U-80 at.%Zr powder compacts in a temperature range from 1100 to 1500 °C in a vacuum of 1 × 10-4 Pa was evaluated. The sintered density depended more on the sintering temperature than on the sintering time. The sintered specimens consisted of the δ-UZr2 matrix with acicular α-Zr precipitates, but it still had un-reacted zirconium when the sintering temperature was 1100 °C. The uranium depletion near the surface of the specimens sintered at temperatures above 1300 °C was detected. Massive Zr(O) grains in the sintered specimen were found, and their formation was restrained when the cooling rate from the sintering temperature was increased.
URI
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DOI
http://dx.doi.org/10.1016/j.jnucmat.2007.04.043
ISSN
0022-3115
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