Present status of beryllides for fusion and industrial applications in Japan

Mishima, Yoshinao; Yoshida, N.; Takahashi, Hiroki; Ishida, K.; Kawamura, Hiroshi; Iwadachi, Takaharu; Shibayama, Tamaki; Ohnuma, Ikuo; Satō, Yoshiyuki; Munakata, Kenzo; Iwakiri, Hirotomo; Uchida, M.

doi:10.1016/j.fusengdes.2006.07.091

Cited by 23 publications

(17 citation statements)

References 3 publications

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“…The hot isostatic pressing (HIP) method and the casting method have been proposed for synthesis of beryllides [3]. However, these methods have some disadvantages such as complicated process, difficulty in composition control and contamination by impurities.…”

Section: Methodsmentioning

confidence: 99%

“…Previous study examined the irradiation response of pure Be metal and Be 12 Ti fabricated by the powder metallurgy method including the HIP process (the HIP Be 12 Ti) regarding irradiation temperature dependence of microstructure development and mechanical properties, especially irradiation hardening and embrittlement [3,11,12]. In this part of this paper, we introduce the study of irradiation response of the plasma-sintered Be 12 Ti.…”

Section: Microstructure Analysis and Irradiation Effectsmentioning

confidence: 99%

“…Beryllium intermetallic compounds (beryllides) are the most promising advanced neutron multipliers [1][2][3]. However, beryllides are too brittle to allow production of pebbles.…”

Section: Introductionmentioning

confidence: 99%

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Preliminary characterization of plasma-sintered beryllides as advanced neutron multipliers

Nakamichi

Kim

Munakata

et al. 2013

Journal of Nuclear Materials

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Section: Methodsmentioning

confidence: 99%

Section: Microstructure Analysis and Irradiation Effectsmentioning

confidence: 99%

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Preliminary characterization of plasma-sintered beryllides as advanced neutron multipliers

Nakamichi

Kim

Munakata

et al. 2013

Journal of Nuclear Materials

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“…As conventional methods, a hot isostatic pressing (HIP) method and a casting method have been proposed for synthesis of beryllide [5]. However, it was cleared these methods had some problems such as its complicated process, time-consuming and difficulty in composition control.…”

Section: Evaluation Of Applicable Methods For Beryllide Synthesismentioning

confidence: 99%

Development of a synthesis method of beryllides as advanced neutron multiplier for DEMO reactors

Nakamichi¹,

Kim²,

Wakai³

et al. 2012

Fusion Engineering and Design

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“…Titanium beryllides such as Be 12 Ti are known to be an alternative of neutron multiplier. It is found that Be 12 Ti possesses higher melting point, better compatibility with structure materials, lower chemical activity and lower swelling [3]. So far, Be 12 Ti had been fabricated by a hot isostatic pressing (HIP) process.…”

Section: Introductionmentioning

confidence: 99%

Oxidation of titanium beryllide fabricated by plasma-sintering method

Wada¹,

Munakata²,

Satō³

et al. 2012

Journal of Nuclear Science and Technology

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It is imperative to establish the blanket technologies for realization of D-T fusion reactors. The neutron multiplier in the fusion reactor blankets plays one of the key roles with regard to breeding of tritium. Metallic beryllium has been considered as a primary candidate for the neutron multiplier, but it is highly reactive with water vapor and oxygen at high temperatures producing H 2 and BeO. Thus, it is necessary to develop more advanced neutron multipliers that are more chemically stable than metallic beryllium. One of the intermetallic compounds of beryllium and titanium, Be 12 Ti, possesses high tolerance to water vapor and oxygen, low swelling property, and better compatibility with structural materials. Thus, it could be an alternative of metallic beryllium. However, few experimental data are available for this material, and thus more experimental studies need to be performed to evaluate its performance as a neutron multiplier. In this study, a Be 12 Ti sample was fabricated by a new production route, plasmasintering method, and of which reactivity with O 2 and H 2 O was examined. Experimental results suggest that the Be 12 Ti sample prepared by the new production route possesses high resistance to oxidation by O 2 and H 2 O.

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Present status of beryllides for fusion and industrial applications in Japan

Cited by 23 publications

References 3 publications

Preliminary characterization of plasma-sintered beryllides as advanced neutron multipliers

Preliminary characterization of plasma-sintered beryllides as advanced neutron multipliers

Development of a synthesis method of beryllides as advanced neutron multiplier for DEMO reactors

Oxidation of titanium beryllide fabricated by plasma-sintering method

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