Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Yutaka Hiraoka"'
Autor:
Yutaka Hiraoka, Hiroaki Kurishita
Publikováno v:
Advances in Materials Science and Engineering, Vol 2011 (2011)
We used three kinds of tungsten sheets in this study. First, we examined microstructure such as grain size distribution using an optical microscope. Secondly, we carried out three-point bend tests at temperatures between about 290 and 500 K. Then, we
Externí odkaz:
https://doaj.org/article/3b144cb0b7f04b06aab4a8e1734fd2ad
Autor:
Masayuki Tokitani, Yukinori Hamaji, Yutaka Hiraoka, Yuki Hayashi, Suguru Masuzaki, Hitoshi Tamura, Hiroyuki Noto, Teruya Tanaka, Tatsuya Tsuneyoshi, Yoshiyuki Tsuji, Gen Motojima, Hiromi Hayashi, Takanori Murase, Takeo Muroga, Akio Sagara, Tomohiro Morisaki
Publikováno v:
Fusion Science and Technology. :1-11
Deformation and fracture behavior of the W/ODS-Cu joint fabricated by the advanced brazing technique
Autor:
Masayuki Tokitani, Akio Sagara, Teruya Tanaka, Takeo Muroga, Hitoshi Tamura, Y. Hamaji, Suguru Masuzaki, Yutaka Hiraoka, H. Noto
Publikováno v:
Fusion Engineering and Design. 146:1733-1736
In our previous work, the joint between oxide dispersion strengthened copper alloy (ODS-Cu), GlidCop® (Cu–0.3 wt%Al2O3) and tungsten (W) demonstrated superior fracture strength (∼200 MPa). This joint was fabricated by the direct brazing method b
Publikováno v:
Journal of the Japan Institute of Metals. 80:702-706
Autor:
Hitoshi Tamura, Takeo Muroga, Suguru Masuzaki, Teruya Tanaka, H. Noto, Y. Hamaji, Masayuki Tokitani, Akio Sagara, Yutaka Hiraoka
Publikováno v:
Journal of Nuclear Materials. 538:152264
A novel fabrication method for a divertor heat removal component with tungsten (W) armour and copper alloy heat sink was newly developed and named as the “Advanced Multi-Step Brazing (AMSB). The basic principle of multi-step brazing is to apply the
Autor:
Yutaka Hiraoka
Publikováno v:
Journal of Smart Processing. 4:73-78
Publikováno v:
Journal of the Japan Society of Powder and Powder Metallurgy. 61:67-72
Autor:
Hitoshi Tamura, Teruya Tanaka, H. Noto, Yutaka Hiraoka, Takeo Muroga, Akio Sagara, Masayuki Tokitani, Y. Hamaji, Suguru Masuzaki
Publikováno v:
Fusion Engineering and Design. 148:111274
The joint of the oxide dispersion strengthened copper alloy, ODS-Cu (ODS-Cu/ODS-Cu), was prepared. The applied ODS-Cu was GlidCop® (Cu-0.3 wt%Al2O3). The joint procedures were based on the brazing technique between GlidCop® and tungsten (W) with BN
Publikováno v:
Journal of Nuclear Materials. 415:S1214-S1217
The degradation of the optical properties of single and polycrystalline Mo mirrors for plasma diagnostics under irradiation with low-energy helium ions at room temperature and 400 °C has been studied by in situ reflectivity measurements, SEM and TEM
Publikováno v:
Journal of the Japan Society of Powder and Powder Metallurgy. 58:655-660
Effects of sintering conditions such as heating temperature and heating rate on the density and microstructure of a sintered body of molybdenum were investigated. Both the oxygen content and the density of an intermediate sintered body influenced the