JOPSS - Search Results

Journal Articles

Effects of hydrogen peroxide and oxygen on corrosion of stainless steel in high temperature water

Uchida, Shunsuke*; Sato, Tomonori; Morishima, Yusuke*; Hirose, Tatsuya*; Miyazawa, Takahiro*; Kakinuma, Nagao*; Sato, Yoshiyuki*; Usui, Naoshi*; Wada, Yoichi*

Proceedings of 12th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors (CD-ROM), p.19 - 29, 2005/00

Static and dynamic responses of stainless steel specimens exposed to H $_{2}$ O $_{2}$ and O $_{2}$ in high temperature water were evaluated by analyzing ECP and FDCI (frequency dependent complex impedance). The oxide films on the specimens were characterized by multilateral surface analyses, e.g., LRS, SIMS, XPS and direct electric resistance measurement. As a result of evaluation, it was confirmed that (1) corrosive condition of BWR normal water chemistry (NWC) was simulated by 100 ppb H $_{2}$ O $_{2}$ without co-existing O $_{2}$ , while that of hydrogen water chemistry (HWC) was simulated by 10 ppb H $_{2}$ O $_{2}$ , (2) ECP under HWC was as high as that under NWC, while dissolution rate of oxide film under HWC was much lower than that under NWC, (3) combination effects of electric resistance and dissolution rate of oxide caused same level ECP for both NWC and HWC, and (4) distinct weight loss of the specimen exposed to 100 ppb H $_{2}$ O $_{2}$ was observed.

Journal Articles

Inelasticity effect on neutron scattering intensities of the null-H $_{2}$ O

Kameda, Yasuo*; Sasaki, Motoya*; Usuki, Takeshi*; Otomo, Toshiya*; Ito, Keiji*; Suzuya, Kentaro; Fukunaga, Toshiharu*

Journal of Neutron Research, 11(3), p.153 - 163, 2003/09

https://doi.org/10.1080/10238160310001657817

We describe results of time-of-flight (TOF) neutron diffraction of the liquid water null-H $_{2}$ O in order to investigate the effect of both the scattering angle and the neutron flight path ratio to the observed self-scattering intensities. An empirical inelasticity correction procedure is proposed using the self-scattering intensity observed for the null-H $_{2}$ O.

Journal Articles

Analytic cross sections for electron collisions with CO, CO $_{2}$ , and H $_{2}$ O relevant to edge plasma impurities

Shirai, Toshizo; Tabata, Tatsuo*; Tawara, Hiroyuki*

Atomic Data and Nuclear Data Tables, 79(1), p.143 - 184, 2001/09

https://doi.org/10.1006/adnd.2001.0866

Times Cited Count：61 Percentile：92.07(Physics, Atomic, Molecular & Chemical)

no abstracts in English

Journal Articles

Decompositions of carbon dioxide, carbon monoxide and gaseous water by microwave discharge

Sakurai, Tsutomu*; Yokoyama, Atsushi

Journal of Nuclear Science and Technology, 37(9), p.814 - 820, 2000/09

https://doi.org/10.3327/jnst.37.814

no abstracts in English

JAEA Reports

High temperature corrosion of iron-base and nickel-base alloys for hydrogen production apparatus by thermochemical method in H $_{2}$ O+SO $_{3}$ atmosphere

Kurata, Yuji; Suzuki, Tomio; Shimizu, Saburo

JAERI-Research 2000-011, p.56 - 0, 2000/03

JAERI-Research-2000-011.pdf:14.24MB

no abstracts in English

Journal Articles

Photon-stimulated ion desoprtion spectra in the adsorption systems of water on Si(100) and Si(111)

Sekiguchi, Hiromi*; Sekiguchi, Tetsuhiro; Kitajima, Yoshinori*; Baba, Yuji

Photon Factory Activity Report 1998, Part B, P. 66, 1999/11

http://ccdb5fs.kek.jp/cgi-bin/img/tiff2gif?199923003+00096

no abstracts in English

Journal Articles

Ab initio molecular orbital study of the N( $^{2}$ D)+H $_{2}$ O reaction

Kurosaki, Yuzuru*; Takayanagi, Toshiyuki

Journal of Physical Chemistry A, 103(3), p.436 - 442, 1999/00

https://doi.org/10.1021/jp9837378

Times Cited Count：20 Percentile：52.96(Chemistry, Physical)

no abstracts in English

JAEA Reports

Effects of ligands on the solubility of tin

Oda, Chie;

JNC TN8400 98-001, 14 Pages, 1998/11

JNC-TN8400-98-001.pdf:0.38MB

Solubilities of amorphous stannic oxide, SnO $_{2}$ (am) in Na-ClO $_{4}$ -Cl-SO $_{4}$ aqueous systems were measured to quantitatively investigate the influences of the ligands OH $^{-}$ , Cl $^{-}$ and SO $_{4}^{2-}$ on solubilities. They were also measured in bentonite equilibrated solutions to discuss the behavior of tin under a repository condition of a high-revel radioactive waste. The solubility data in sodium perchlorate media in the range of pH from 6 to 11 showed pH dependency, and the hydrolysis constants of tin (IV) were determined (Amaya, et al., 1997). No significant changes in solubilities with the variation in Cl $^{-}$ , SO $_{4}^{2-}$ concentrations were observed in Na-ClO $_{4}$ -Cl-SO $_{4}$ aqueous systems, so this indicates that chloride and sulfate species were less effective than hydroxide complexes. On the other hand, solubilities in bentonite equilibrated solutions were higher than solubilities of other experiments in simple systems. These results suggest that (1) other complexes of tin except hydroxide, chloride or sulfate complexes of tin (IV) may dominantly exist in aqueous phase, (2)solid phase other than SnO $_{2}$ (am) may limit the solubility of tin under repository conditions.