Preliminary study of compatibility of lithium oxide single crystals with nickel foils under electric field

Shoichi Nasu; Shinji Nagata; Sorin Kihara; Katsumi Takahiro; Tatsuo Shikama

doi:10.2497/jjspm.54.236

Preliminary study of compatibility of lithium oxide single crystals with nickel foils under electric field

Shoichi Nasu, Shinji Nagata, Sorin Kihara, Katsumi Takahiro, Tatsuo Shikama

Research output: Contribution to journal › Article › peer-review

Abstract

We examined compatibility of lithium oxide (Li₂O, tritium breeding materials) single crystals with nickel (Ni) foils by Rutherford backscattering spectroscopy (RBS) with He ions and protons. After heating the samples at 673 K for 3600 s without electric fields, or after applying the electric field of 200 V mm^-1 between the Ni contacted surface (positive) and the free back surface (negative) of Li₂O crystals at 673 K for 3900 s, any reactions were not observed between the Ni foils and the Li₂O crystals. On the other hand, after applying the electric field of 300 V mm^-1 at 353 K for 600 s, heavy reactions were observed. That is, lithium and oxygen atoms migrated into the Ni foil, and Ni atoms diffused into the Li₂O crystals. In addition, we examined the effect of the reverse electric field on reactions, and found a heavier reaction for the attractive force of lithium ions.

Original language	English
Pages (from-to)	236-241
Number of pages	6
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	54
Issue number	4
DOIs	https://doi.org/10.2497/jjspm.54.236
Publication status	Published - 2007 Apr

Keywords

Lithium oxide
Nickel
Rutherford backscattering spectroscopy
Solid state reaction
Tritium breeding materials

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "Preliminary study of compatibility of lithium oxide single crystals with nickel foils under electric field",

abstract = "We examined compatibility of lithium oxide (Li2O, tritium breeding materials) single crystals with nickel (Ni) foils by Rutherford backscattering spectroscopy (RBS) with He ions and protons. After heating the samples at 673 K for 3600 s without electric fields, or after applying the electric field of 200 V mm-1 between the Ni contacted surface (positive) and the free back surface (negative) of Li2O crystals at 673 K for 3900 s, any reactions were not observed between the Ni foils and the Li2O crystals. On the other hand, after applying the electric field of 300 V mm-1 at 353 K for 600 s, heavy reactions were observed. That is, lithium and oxygen atoms migrated into the Ni foil, and Ni atoms diffused into the Li2O crystals. In addition, we examined the effect of the reverse electric field on reactions, and found a heavier reaction for the attractive force of lithium ions.",

keywords = "Lithium oxide, Nickel, Rutherford backscattering spectroscopy, Solid state reaction, Tritium breeding materials",

author = "Shoichi Nasu and Shinji Nagata and Sorin Kihara and Katsumi Takahiro and Tatsuo Shikama",

year = "2007",

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doi = "10.2497/jjspm.54.236",

language = "English",

volume = "54",

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journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",

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TY - JOUR

T1 - Preliminary study of compatibility of lithium oxide single crystals with nickel foils under electric field

AU - Nasu, Shoichi

AU - Nagata, Shinji

AU - Kihara, Sorin

AU - Takahiro, Katsumi

AU - Shikama, Tatsuo

PY - 2007/4

Y1 - 2007/4

N2 - We examined compatibility of lithium oxide (Li2O, tritium breeding materials) single crystals with nickel (Ni) foils by Rutherford backscattering spectroscopy (RBS) with He ions and protons. After heating the samples at 673 K for 3600 s without electric fields, or after applying the electric field of 200 V mm-1 between the Ni contacted surface (positive) and the free back surface (negative) of Li2O crystals at 673 K for 3900 s, any reactions were not observed between the Ni foils and the Li2O crystals. On the other hand, after applying the electric field of 300 V mm-1 at 353 K for 600 s, heavy reactions were observed. That is, lithium and oxygen atoms migrated into the Ni foil, and Ni atoms diffused into the Li2O crystals. In addition, we examined the effect of the reverse electric field on reactions, and found a heavier reaction for the attractive force of lithium ions.

AB - We examined compatibility of lithium oxide (Li2O, tritium breeding materials) single crystals with nickel (Ni) foils by Rutherford backscattering spectroscopy (RBS) with He ions and protons. After heating the samples at 673 K for 3600 s without electric fields, or after applying the electric field of 200 V mm-1 between the Ni contacted surface (positive) and the free back surface (negative) of Li2O crystals at 673 K for 3900 s, any reactions were not observed between the Ni foils and the Li2O crystals. On the other hand, after applying the electric field of 300 V mm-1 at 353 K for 600 s, heavy reactions were observed. That is, lithium and oxygen atoms migrated into the Ni foil, and Ni atoms diffused into the Li2O crystals. In addition, we examined the effect of the reverse electric field on reactions, and found a heavier reaction for the attractive force of lithium ions.

KW - Lithium oxide

KW - Nickel

KW - Rutherford backscattering spectroscopy

KW - Solid state reaction

KW - Tritium breeding materials

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Preliminary study of compatibility of lithium oxide single crystals with nickel foils under electric field

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Keywords

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