Trial synthesis of Li $_{2}$ Be $_{2}$ O $_{3}$ for high-functional tritium breeders

Hoshino, Tsuyoshi; Oikawa, Fumiaki; Natori, Yuri*; Kato, Kenichi*; Sakka, Tomoko*; Nakamura, Mutsumi*; Tatenuma, Katsuyoshi*

Lithium titanate with additional Li (Li $_{2+x}$ TiO $_{3+y}$ ) and lithium orthosilicate (Li $_{4}$ SiO $_{4}$ ) is one of the most promising candidates for use in a tritium breeder because of its good chemical and mechanical stabilities. Currently, mixtures of tritium breeder pebble and neutron multiplier (Be or Be $_{12}$ Ti) pebble are being considered for use in increasing the tritium breeding ratio in a breeding blanket. However, lithium and beryllium are gradually reacted under practical operating conditions, and therefore a high-functional tritium breeder such as lithium beryllium oxide (Li $_{2}$ Be $_{2}$ O $_{3}$ ) needs to be developed to compensate for this reactive characteristic under high temperature use. In this study, methods of synthesizing Li $_{2}$ Be $_{2}$ O $_{3}$ have been extensively investigated by means of solid-phase reaction. The solid-phase reaction of LiOH(H $_{2}$ O) and BeO is a suitable synthesis method for lithium beryllium oxide (Li $_{2}$ Be $_{2}$ O $_{3}$ ). It is expected that single-phase Li $_{2}$ Be $_{2}$ O $_{3}$ will be stable under the mixture conditions of a tritium breeder and neutron multiplier in the blanket region at high temperatures.

Language	:	English
Journal	:	Fusion Engineering and Design
Volume	:	88
Number	:	9-10
Pages	:	p.2268 - 2271
Publication Year/Month	:	2013/10
Meeting title	:	27th Symposium on Fusion Technology (SOFT 2012)
Held date	:	2012/09
Location (city)	:	Lige
Location (country)	:	Belgium
Patent information	:
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Paper URL	:	https://doi.org/10.1016/j.fusengdes.2013.05.013
DOI for research data	:
Keywords	:	no keyword
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Registration No. : BB20121191
JAEA Abstracts No. : 41001390
Paper Submission No. : 13373

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Trial synthesis of LiBeO for high-functional tritium breeders

Trial synthesis of Li $_{2}$ Be $_{2}$ O $_{3}$ for high-functional tritium breeders