JOPSS - Search Results

Journal Articles

Present status of beryllide R&D as neutron multiplier

Kawamura, Hiroshi; Takahashi, Heishichiro*; Yoshida, Naoaki*; Mishima, Yoshinao*; Ishida, Kiyohito*; Iwadachi, Takaharu*; Cardella, A.*; Van der Laan, J. G.*; Uchida, Munenori*; Munakata, Kenzo*; et al.

Journal of Nuclear Materials, 329-333(1), p.112 - 118, 2004/08

https://doi.org/10.1016/j.jnucmat.2004.04.297

Times Cited Count：39 Percentile：89.60(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Stability of titanium beryllide under water vapor

Munakata, Kenzo*; Kawamura, Hiroshi; Uchida, Munenori*

Journal of Nuclear Materials, 329-333(Part2), p.1357 - 1360, 2004/08

https://doi.org/10.1016/j.jnucmat.2004.04.197

Times Cited Count：17 Percentile：70.78(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Phase equilibria in the Be-V and Be-Ti binary systems

Onuma, Ikuo*; Kainuma, Ryosuke*; Uda, Minoru*; Iwadachi, Takaharu*; Uchida, Munenori*; Kawamura, Hiroshi; Ishida, Kiyohito*

JAERI-Conf 2004-006, p.172 - 183, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Development of innovative light refractory materials using beryllide for gas turbine

Iwadachi, Takaharu*; Uchida, Munenori*; Mishima, Yoshinao*; Fujita, Akitsugu*; Kawamura, Hiroshi; Shestakov, V.*; Miyakawa, Masaru*

JAERI-Conf 2004-006, p.196 - 202, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

High temperature oxidation behavior of titanium beryllide in air

Sato, Yoshiyuki*; Uchida, Munenori*; Kawamura, Hiroshi

JAERI-Conf 2004-006, p.203 - 209, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Effects of He/Electron irradiation on microstructure evolution in Be $_{12}$ Ti

Shibayama, Tamaki*; Nakamichi, Masaru*; Uchida, Munenori*; Kawamura, Hiroshi; Kinoshita, Hiroshi*; Kiyanagi, Yoshiaki*; Takahashi, Heishichiro*; Nomura, Naoyuki*

JAERI-Conf 2004-006, p.216 - 219, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Deuterium retention properties of Be $_{12}$ Ti

Iwakiri, Hirotomo*; Yoshida, Naoaki*; Uchida, Munenori*; Kawamura, Hiroshi

JAERI-Conf 2004-006, p.220 - 224, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Study on reactivity of titanium beryllide with water vapor

Munakata, Kenzo*; Kawamura, Hiroshi; Uchida, Munenori*

JAERI-Conf 2004-006, p.210 - 215, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Microstructure and mechanical properties of Be $_{12}$ Ti/(Be) and Be $_{12}$ V/(Be) two-phase alloys

Mishima, Yoshinao*; Yamamoto, Keisuke*; Kimura, Yoshisato*; Uchida, Munenori*; Kawamura, Hiroshi

JAERI-Conf 2004-006, p.184 - 189, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Trial fabrication of Be $_{12}$ Ti electrode for pebble production by rotating electrode method

Uda, Minoru*; Iwadachi, Takaharu*; Uchida, Munenori*; Nakamichi, Masaru*; Kawamura, Hiroshi

JAERI-Conf 2004-006, p.190 - 195, 2004/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-2004-006.pdf

no abstracts in English

Journal Articles

Thermal desorption of deuterium from ion irradiated Be $_{12}$ Ti

Iwakiri, Hirotomo*; Yasunaga, Kazufumi*; Yoshida, Naoaki*; Uchida, Munenori*; Kawamura, Hiroshi

Journal of Nuclear Materials, 329-333(Part A), p.880 - 884, 2004/00

https://doi.org/10.1016/j.jnucmat.2004.04.280

Times Cited Count：10 Percentile：54.49(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Elemental development of beryllide electrode for pebble production by rotating electrode method

Uchida, Munenori*; Uda, Minoru*; Iwadachi, Takaharu*; Nakamichi, Masaru; Kawamura, Hiroshi

Journal of Nuclear Materials, 329-333(Part2), p.1342 - 1346, 2004/00

https://doi.org/10.1016/j.jnucmat.2004.04.195

Times Cited Count：5 Percentile：34.17(Materials Science, Multidisciplinary)

In this paper, an elemental technology to fabricate beryllide rods by the vacuum casting was researched. Furnace material study to prevent the chemical reaction with beryllide and casting procedure study to cast durable ingot without any shrinkages and cracks were performed. From the results of the reactivity test of refractory material with Be $_{12}$ Ti, it was clear that the BeO crucible had less reactivity with melt and no contamination. From the results of casting tests with a MgO cylindrical mold in a vacuum chamber, it was revealed that the mold dimension was critical to minimize shrinkages and cracks. It was also found that the forced cooling by the MgO cylindrical sleeve with water-cooled copper mold on the bottom was efficient to improve the shrinkages and the cracks.

JAEA Reports

Summary of the Symposium on Beryllides as an Advanced Nuclear Functional Material

Department of JMTR, Oarai

JAERI-Review 2003-026, 163 Pages, 2003/09

JAERI-Review-2003-026.pdf:16.05MB

no abstracts in English

Journal Articles

Thermal conductivity of neutron irradiated Be $_{12}$ Ti

Uchida, Munenori*; Ishitsuka, Etsuo; Kawamura, Hiroshi

Fusion Engineering and Design, 69(1-4), p.499 - 503, 2003/09

https://doi.org/10.1016/S0920-3796(03)00395-8

Times Cited Count：30 Percentile：85.39(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Compatibility test between Be $_{12}$ Ti and Li $_{2}$ TiO $_{3}$

Nakamichi, Masaru; Kawamura, Hiroshi; Uchida, Munenori*

Fusion Engineering and Design, 69(1-4), p.257 - 261, 2003/09

https://doi.org/10.1016/S0920-3796(03)00350-8

Times Cited Count：10 Percentile：55.19(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Tritium release properties of neutron-irradiated Be $_{12}$ Ti

Uchida, Munenori*; Ishitsuka, Etsuo; Kawamura, Hiroshi

Journal of Nuclear Materials, 307-311(Part1), p.653 - 656, 2002/12

https://doi.org/10.1016/S0022-3115(02)01219-9

Times Cited Count：30 Percentile：84.49(Materials Science, Multidisciplinary)

Be $_{12}$ Ti has high melting point and good chemical stability and is expected as the advanced material for the neutron multiplier of DEMO-Reactor that requires higher temperature than 600 $^{circ}$ C in a blanket. To evaluate the tritium inventory in the breeding blanket, tritium release experiment of the neutron irradiated Be $_{12}$ Ti irradiated with a total fast neutron fluence of about 4 x 10 $^{22}$ n/cm $^{2}$ (E1MeV) at 330, 400 and 500 $^{circ}$ C, was carried out. It was clear that tritium could be released easier than beryllium, and the apparent diffusion coefficient of Be $_{12}$ Ti was about two orders larger than that of beryllium at 6001100 $^{circ}$ C. In addition to good tritium release property, the swelling calculated from the density change of the specimens up to 1100 $^{circ}$ C in this test was smaller than that of beryllium.