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Variable temperature neutron diffraction studies of single crystals of LiND2

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Title: Variable temperature neutron diffraction studies of single crystals of LiND2
Authors: Isobe, Shigehito Browse this author →KAKEN DB
Ohnuki, Somei Browse this author →KAKEN DB
David, William I. F. Browse this author
Gutmann, Matthias Browse this author
Jones, Martin O. Browse this author
Edwards, Peter P. Browse this author
Ichikawa, Takayuki Browse this author →KAKEN DB
Kojima, Yoshitsugu Browse this author
Keywords: Hydrogen storage
Lithium amide
Single crystal
Neutron diffraction
Issue Date: Jul-2011
Publisher: Elsevier
Journal Title: International Journal of Hydrogen Energy
Volume: 36
Issue: 13
Start Page: 7909
End Page: 7913
Publisher DOI: 10.1016/j.ijhydene.2011.01.086
Abstract: We have synthesized a single crystal of lithium amide (LiNH2, LiND2) by melting method, and performed neutron diffraction of the single crystal at variable temperature. LiND2 is tetragonal structure and I-4 space group. Lattice parameters and unit cell volume of LiND2 at room temperature, 50℃, 100℃, 150℃ and 200℃ were determined. Both of the lattice parameters and the unit cell volume increase with increase of temperature. From these results, we have estimated coefficient of volumetric thermal expansion αv of LiND2 to be 222 * 10^[-6]/K. With increase of temperature, all thermal ellipsoids gradually expand because of thermal vibration.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 礒部 繁人

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