Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Toyoshi Fuketa"'
Publikováno v:
Journal of Nuclear Science and Technology. 48:1369-1376
Ring compression tests were conducted with specimens sampled from high-burnup PWR and BWR fuel cladding segments that had been ruptured, oxidized at 1,405–1,484 K, and quenched in LOCAsimulated experiments. The calculated oxidation amount for cladd
Publikováno v:
Journal of Nuclear Materials. 414:303-308
The thermal conductivity formula of fuel pellet which contains the effects of burnup and plutonium (Pu) addition was proposed based on the Klemens’ theory and reported thermal conductivities of unirradiated (U, Pu) O2 and irradiated UO2 pellets. Th
Publikováno v:
Journal of Nuclear Science and Technology. 47:991-997
In order to clarify the failure mechanism and determine the failure limit of the High-Temperature Gascooled Reactor (HTGR) fuel under reactivity-initiated accident (RIA) conditions, pulse irradiations were performed with unirradiated coated fuel part
Publikováno v:
Acta Materialia. 58:3927-3938
Hydrogen embrittlement of zirconium alloys is one of the main causes of the mechanical degradation of the fuel cladding in light water reactors, and has therefore been extensively studied. Although various conjectures have been proposed as the origin
Publikováno v:
Journal of Nuclear Science and Technology. 47:439-448
In order to evaluate possible effects of initial temperature on the transient fuel behavior, such as cladding deformation and fission gas release, under reactivity-initiated accident conditions, two comparative pulse-irradiation tests were performed
Autor:
Toshinori Chuto, Toyoshi Fuketa, Hideo Sasajima, Fumihisa Nagase, Takehiko Nakamura, Tomoyuki Sugiyama
Publikováno v:
Journal of Nuclear Science and Technology. 47:202-210
The radial positions of fission gas release (FGR) in high-burnup fuel pellets were examined after pulseirradiations that simulated reactivity-initiated accident (RIA) conditions in the Nuclear Safety Research Reactor (NSRR). The molar ratio of xenon
Publikováno v:
Journal of Nuclear Materials. 396:32-42
Two kinds of disk-shaped UO2 samples (4 mm in diameter and 1 mm in thickness) were irradiated in a test reactor up to about 60 and 130 GWd/t, respectively. The microstructures of the samples were investigated by means of optical microscopy, scanning
Publikováno v:
Journal of Nuclear Science and Technology. 46:1012-1021
RIA-simulating experiments for high-burnup PWR fuels have been performed in the NSRR, and the stress intensity factor K I at the tip of cladding incipient crack has been evaluated in order to investigate its validity as a PCMI failure threshold under