Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Hirooka, Shun; Kato, Masato
Journal of Nuclear Science and Technology, 55(3), p.356 - 362, 2018/03
Times Cited Count:8 Percentile:62.29(Nuclear Science & Technology)The sound speeds of longitudinal and transverse waves in the uranium-plutonium mixed oxide (MOX) pellets were measured as functions of porosity, oxygen-to-metal ratio (O/M) and plutonium content. The effect of each parameter was well fitted by a linear function and the equations were obtained to calculate the sound speeds. Mechanical properties were evaluated with the sound speeds and the result of Young's modulus showed that porosity was the most important factor to decrease Young's modulus. Temperature dependence on Young's modulus was also evaluated with previously reported thermal expansion. Decrease of Young's modules with increasing temperature was in good agreement with available literature.
Hirooka, Shun; Kato, Masato
Proceedings of International Conference on Fast Reactors and Related Fuel Cycles; Next Generation Nuclear Systems for Sustainable Development (FR-17) (USB Flash Drive), 6 Pages, 2017/06
Young's modulus of MOX pellets was evaluated by measuring the sound velocities of longitudinal and transverse waves in the pellets as functions of porosity, oxygen-to-metal ratio (O/M) and plutonium content. The results showed that porosity was the most important factor that 20% of the porosity decreased Young's modulus by neatly 100 GPa while O/M and plutonium content could change the Young's modulus by ~20 GPa. From the measured sound velocities, temperature dependence on Young's modulus and specific heat capacity were calculated on the Debye model by leveraging the thermal expansion data. The temperature dependence that Young's modulus decreases with increasing temperature is in good agreement with literature data. The specific heat capacity also agrees with that of calculated value by Kopp's method, taken the Schottky term and the excited term into account.
Serizawa, Hiroyuki; Arai, Yasuo
Journal of Alloys and Compounds, 312(1-2), p.257 - 264, 2001/00
Times Cited Count:11 Percentile:57.7(Chemistry, Physical)no abstracts in English
Serizawa, Hiroyuki; Arai, Yasuo; Takano, Masahide; Suzuki, Yasufumi
Journal of Alloys and Compounds, 282, p.17 - 22, 1999/00
Times Cited Count:20 Percentile:74.38(Chemistry, Physical)no abstracts in English
Okamoto, Yoshihiro; Kobayashi, Fumiaki; Ogawa, Toru
Journal of Alloys and Compounds, 271-273, p.355 - 358, 1998/00
Times Cited Count:40 Percentile:85.97(Chemistry, Physical)no abstracts in English
Serizawa, Hiroyuki; Fukuda, Kosaku; Shiratori, Tetsuo; Fujino, Takeo*; Sato, Nobuaki*; Yamada, Kota*
Journal of Alloys and Compounds, 271-273, p.386 - 390, 1998/00
Times Cited Count:9 Percentile:55.04(Chemistry, Physical)no abstracts in English
;
Reports on Progress in Polymer Physics in Japan, 15, p.157 - 160, 1972/00
no abstracts in English