Synthesis of high purity li5ALO4 powder by solid state reaction under the H2 firing

Seiya Ogawa; Kiyoto Shin-Mura; Yu Otani; Eiki Niwa; Takuya Hashimoto; Tsuyoshi Hoshino; Kazuya Sasaki

doi:10.1002/9781119321774.ch6

Synthesis of high purity li₅ALO₄ powder by solid state reaction under the H₂ firing

Seiya Ogawa, Kiyoto Shin-Mura, Yu Otani, Eiki Niwa, Takuya Hashimoto, Tsuyoshi Hoshino, Kazuya Sasaki

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Ceramic breeders used in a fusion reactor blanket, which play a role in the production of tritium by the reaction with neutron, are required to have high lithium density in the pebble. Li₅AlO₄ contains lithium by high concentration and have a great ability of tritium breeder. However, in order to prepare the high purity powder of Li₅AlO₄, only a few methods with disadvantageous economically because of their requirement of a high-cost powder, Li₂O. In this study, Li₂CO₃ powder was used instead of Li₂O powder, which are not always commercially available, and a high-purity powder of -Li₅AlO₄ and -Li₅AlO₄ were synthesized via a solid state reaction. Mixed powders of Li₂CO₃ and Al₂O₃ with a molar ratio of 5:1 were fired at 630°C and/or 800°C in H₂ and/or O₂ for several hours. This low firing temperature inhibited the vaporization of lithium during the heating, so that the excess amount of lithium compounds was not necessary. A reaction process that -LiAlO₂, -LiAlO₂, and Li₂O are produced as intermediate phases has been suggested.

Original language	English
Title of host publication	Ceramic Materials for Energy Applications VI - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
Editors	Josef Matyas, Hua-Tay Lin, Yutai Katoh, Alberto Vomiero
Publisher	American Ceramic Society
Pages	49-60
Number of pages	12
Edition	6
ISBN (Print)	9781119040439
DOIs	https://doi.org/10.1002/9781119321774.ch6
Publication status	Published - 2017
Externally published	Yes
Event	Ceramic Materials for Energy Applications VI - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016 - Daytona Beach, United States Duration: Jan 24 2016 → Jan 29 2016

Publication series

Name	Ceramic Engineering and Science Proceedings
Number	6
Volume	37
ISSN (Print)	0196-6219

Conference

Conference	Ceramic Materials for Energy Applications VI - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
Country/Territory	United States
City	Daytona Beach
Period	1/24/16 → 1/29/16

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

Access to Document

10.1002/9781119321774.ch6

Cite this

Ogawa, S., Shin-Mura, K., Otani, Y., Niwa, E., Hashimoto, T., Hoshino, T., & Sasaki, K. (2017). Synthesis of high purity li₅ALO₄ powder by solid state reaction under the H₂ firing. In J. Matyas, H-T. Lin, Y. Katoh, & A. Vomiero (Eds.), Ceramic Materials for Energy Applications VI - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016 (6 ed., pp. 49-60). (Ceramic Engineering and Science Proceedings; Vol. 37, No. 6). American Ceramic Society. https://doi.org/10.1002/9781119321774.ch6

Synthesis of high purity li₅ALO₄ powder by solid state reaction under the H₂ firing. / Ogawa, Seiya; Shin-Mura, Kiyoto; Otani, Yu; Niwa, Eiki; Hashimoto, Takuya; Hoshino, Tsuyoshi; Sasaki, Kazuya.

Ceramic Materials for Energy Applications VI - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016. ed. / Josef Matyas; Hua-Tay Lin; Yutai Katoh; Alberto Vomiero. 6. ed. American Ceramic Society, 2017. p. 49-60 (Ceramic Engineering and Science Proceedings; Vol. 37, No. 6).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ogawa, S, Shin-Mura, K, Otani, Y, Niwa, E, Hashimoto, T, Hoshino, T & Sasaki, K 2017, Synthesis of high purity li₅ALO₄ powder by solid state reaction under the H₂ firing. in J Matyas, H-T Lin, Y Katoh & A Vomiero (eds), Ceramic Materials for Energy Applications VI - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016. 6 edn, Ceramic Engineering and Science Proceedings, no. 6, vol. 37, American Ceramic Society, pp. 49-60, Ceramic Materials for Energy Applications VI - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016, Daytona Beach, United States, 1/24/16. https://doi.org/10.1002/9781119321774.ch6

Ogawa S, Shin-Mura K, Otani Y, Niwa E, Hashimoto T, Hoshino T et al. Synthesis of high purity li₅ALO₄ powder by solid state reaction under the H₂ firing. In Matyas J, Lin H-T, Katoh Y, Vomiero A, editors, Ceramic Materials for Energy Applications VI - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016. 6 ed. American Ceramic Society. 2017. p. 49-60. (Ceramic Engineering and Science Proceedings; 6). https://doi.org/10.1002/9781119321774.ch6

Ogawa, Seiya ; Shin-Mura, Kiyoto ; Otani, Yu ; Niwa, Eiki ; Hashimoto, Takuya ; Hoshino, Tsuyoshi ; Sasaki, Kazuya. / Synthesis of high purity li₅ALO₄ powder by solid state reaction under the H₂ firing. Ceramic Materials for Energy Applications VI - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016. editor / Josef Matyas ; Hua-Tay Lin ; Yutai Katoh ; Alberto Vomiero. 6. ed. American Ceramic Society, 2017. pp. 49-60 (Ceramic Engineering and Science Proceedings; 6).

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title = "Synthesis of high purity li5ALO4 powder by solid state reaction under the H2 firing",

abstract = "Ceramic breeders used in a fusion reactor blanket, which play a role in the production of tritium by the reaction with neutron, are required to have high lithium density in the pebble. Li5AlO4 contains lithium by high concentration and have a great ability of tritium breeder. However, in order to prepare the high purity powder of Li5AlO4, only a few methods with disadvantageous economically because of their requirement of a high-cost powder, Li2O. In this study, Li2CO3 powder was used instead of Li2O powder, which are not always commercially available, and a high-purity powder of -Li5AlO4 and -Li5AlO4 were synthesized via a solid state reaction. Mixed powders of Li2CO3 and Al2O3 with a molar ratio of 5:1 were fired at 630°C and/or 800°C in H2 and/or O2 for several hours. This low firing temperature inhibited the vaporization of lithium during the heating, so that the excess amount of lithium compounds was not necessary. A reaction process that -LiAlO2, -LiAlO2, and Li2O are produced as intermediate phases has been suggested.",

author = "Seiya Ogawa and Kiyoto Shin-Mura and Yu Otani and Eiki Niwa and Takuya Hashimoto and Tsuyoshi Hoshino and Kazuya Sasaki",

note = "Funding Information: Seiya Ogawaa, Kiyoto Shin-muraa, Yu Otania, Eiki Niwac, Takuya Hashimotoc, Tsuyoshi Hoshinod, and Kazuya Sasakia,b,e* aCourse of Mechanical Engineering, Graduate School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 259 1292, Japan bDepartment of Prime Mover Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 259 1292, Japan cDepartment of Physics, College of Humanities and Sciences, Nihon University, 3-8-1 Sakurajousui, Setagaya-ku, Tokyo 156 8550, Japan dBreeding Functional Materials Development Group, Department of Blanket Systems Research, Rokkasho Fusion Institute, Sector of Fusion Research and Development, Japan Atomic Energy Agency, 2-166 Obuchi, Omotedate, Rokkasho-mura, Kamikita-gun, Aomori, 039 3212, Japan eGraduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori, 036 8561, Japan * Corresponding Author: k_sasaki@hirosaki-u.ac.jp Funding Information: ACKNOWLEDGEMENTS This report was prepared within the framework of the Agreement between the Government of Japan and the European Atomic Energy Community for The Joint Implementation of The Broader Approach Activities in the Field of Fusion Energy Research. The authors would like to thank all the contributors to IFERC projects in Japan and also all the members of the IFERC Project Team. Publisher Copyright: {\textcopyright} 2017 by The American Ceramic Society.; Ceramic Materials for Energy Applications VI - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016 ; Conference date: 24-01-2016 Through 29-01-2016",

year = "2017",

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AU - Hashimoto, Takuya

AU - Hoshino, Tsuyoshi

AU - Sasaki, Kazuya

N1 - Funding Information: Seiya Ogawaa, Kiyoto Shin-muraa, Yu Otania, Eiki Niwac, Takuya Hashimotoc, Tsuyoshi Hoshinod, and Kazuya Sasakia,b,e* aCourse of Mechanical Engineering, Graduate School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 259 1292, Japan bDepartment of Prime Mover Engineering, School of Engineering, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa, 259 1292, Japan cDepartment of Physics, College of Humanities and Sciences, Nihon University, 3-8-1 Sakurajousui, Setagaya-ku, Tokyo 156 8550, Japan dBreeding Functional Materials Development Group, Department of Blanket Systems Research, Rokkasho Fusion Institute, Sector of Fusion Research and Development, Japan Atomic Energy Agency, 2-166 Obuchi, Omotedate, Rokkasho-mura, Kamikita-gun, Aomori, 039 3212, Japan eGraduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori, 036 8561, Japan * Corresponding Author: k_sasaki@hirosaki-u.ac.jp Funding Information: ACKNOWLEDGEMENTS This report was prepared within the framework of the Agreement between the Government of Japan and the European Atomic Energy Community for The Joint Implementation of The Broader Approach Activities in the Field of Fusion Energy Research. The authors would like to thank all the contributors to IFERC projects in Japan and also all the members of the IFERC Project Team. Publisher Copyright: © 2017 by The American Ceramic Society.

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N2 - Ceramic breeders used in a fusion reactor blanket, which play a role in the production of tritium by the reaction with neutron, are required to have high lithium density in the pebble. Li5AlO4 contains lithium by high concentration and have a great ability of tritium breeder. However, in order to prepare the high purity powder of Li5AlO4, only a few methods with disadvantageous economically because of their requirement of a high-cost powder, Li2O. In this study, Li2CO3 powder was used instead of Li2O powder, which are not always commercially available, and a high-purity powder of -Li5AlO4 and -Li5AlO4 were synthesized via a solid state reaction. Mixed powders of Li2CO3 and Al2O3 with a molar ratio of 5:1 were fired at 630°C and/or 800°C in H2 and/or O2 for several hours. This low firing temperature inhibited the vaporization of lithium during the heating, so that the excess amount of lithium compounds was not necessary. A reaction process that -LiAlO2, -LiAlO2, and Li2O are produced as intermediate phases has been suggested.

AB - Ceramic breeders used in a fusion reactor blanket, which play a role in the production of tritium by the reaction with neutron, are required to have high lithium density in the pebble. Li5AlO4 contains lithium by high concentration and have a great ability of tritium breeder. However, in order to prepare the high purity powder of Li5AlO4, only a few methods with disadvantageous economically because of their requirement of a high-cost powder, Li2O. In this study, Li2CO3 powder was used instead of Li2O powder, which are not always commercially available, and a high-purity powder of -Li5AlO4 and -Li5AlO4 were synthesized via a solid state reaction. Mixed powders of Li2CO3 and Al2O3 with a molar ratio of 5:1 were fired at 630°C and/or 800°C in H2 and/or O2 for several hours. This low firing temperature inhibited the vaporization of lithium during the heating, so that the excess amount of lithium compounds was not necessary. A reaction process that -LiAlO2, -LiAlO2, and Li2O are produced as intermediate phases has been suggested.

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