Local Structural Analysis on Decomposition Process of LiAl(ND2)4

Kazutaka Ikeda; Toshiya Otomo; Hidetoshi Ohshita; Naokatsu Kaneko; Masami Tsubota; Kentaro Suzuya; Fumika Fujisaki; Taisuke Ono; Toshiyuki Yamanaka; Keiji Shimoda; Takayuki Ichikawa; Yoshitsugu Kojima

doi:10.2320/matertrans.MG201406

Local Structural Analysis on Decomposition Process of LiAl(ND₂)₄

Kazutaka Ikeda, Toshiya Otomo, Hidetoshi Ohshita, Naokatsu Kaneko, Masami Tsubota, Kentaro Suzuya, Fumika Fujisaki, Taisuke Ono, Toshiyuki Yamanaka, Keiji Shimoda, Takayuki Ichikawa, Yoshitsugu Kojima

Author information

Kazutaka Ikeda
Institute of Materials Structure Science, KEK
Toshiya Otomo
Institute of Materials Structure Science, KEK
Department Materials Structure Science, The Graduate University for Advanced Studies
Hidetoshi Ohshita
Institute of Materials Structure Science, KEK
Naokatsu Kaneko
Institute of Materials Structure Science, KEK
Masami Tsubota
Institute of Materials Structure Science, KEK
Kentaro Suzuya
J-PARC Center, Japan Atomic Energy Agency
Fumika Fujisaki
Department Materials Structure Science, The Graduate University for Advanced Studies
Taisuke Ono
Graduate School of Advanced Sciences of Matter, Hiroshima University
Toshiyuki Yamanaka
Graduate School of Advanced Sciences of Matter, Hiroshima University
Keiji Shimoda
Institute for Advanced Materials Research, Hiroshima University
Takayuki Ichikawa
Graduate School of Advanced Sciences of Matter, Hiroshima University
Institute for Advanced Materials Research, Hiroshima University
Yoshitsugu Kojima
Graduate School of Advanced Sciences of Matter, Hiroshima University
Institute for Advanced Materials Research, Hiroshima University

Keywords: neutron total scattering, pair distribution function, hydrogen, amide

JOURNAL FREE ACCESS

2014 Volume 55 Issue 8 Pages 1129-1133

DOI https://doi.org/10.2320/matertrans.MG201406

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Abstract

Local structural changes that accompany amorphization during the decomposition of LiAl(ND₂)₄ were investigated by neutron total scattering measurements. Structure factors before the decomposition were attributed to single-phase LiAl(ND₂)₄ characterized by isolated [ND₂] units. Atomic pair distribution functions after heat treatments at 433 and 673 K showed that LiAl(ND₂)₄ decomposed to amorphous mixed phases that contain Li₃AlN₂ and AlN.

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