Synthesis and structural study of Ti-rich Mg-Ti hydrides

Kohta Asano, Hyunjeong Kim, Kouji Sakaki, Katharine Page, Shigenobu Hayashi, Yumiko Nakamura, Etsuo Akiba

研究成果: ジャーナルへの寄稿レター

10 引用 (Scopus)

抄録

MgxTi1-x (x = 0.15, 0.25, 0.35) alloys were synthesized by means of ball milling. Under a hydrogen pressure of 8 MPa at 423 K these Mg-Ti alloys formed a hydride phase with a face centered cubic (FCC) structure. The hydride for x = 0.25 consisted of single Mg 0.25Ti0.75H1.62 FCC phase but TiH2 and MgH2 phases were also formed in the hydrides for x = 0.15 and 0.35, respectively. X-ray diffraction patterns and the atomic pair distribution function indicated that numbers of stacking faults were introduced. There was no sign of segregation between Mg and Ti in Mg0.25Ti 0.75H1.62. Electronic structure of Mg 0.25Ti0.75H1.62 was different from those of MgH2 and TiH2, which was demonstrated by 1H nuclear magnetic resonance. This strongly suggested that stable Mg-Ti hydride phase was formed in the metal composition of Mg0.25Ti0.75 without disproportion into MgH2 and TiH2.

元の言語英語
ページ(範囲)132-136
ページ数5
ジャーナルJournal of Alloys and Compounds
593
DOI
出版物ステータス出版済み - 4 25 2014

Fingerprint

Hydrides
Stacking faults
Ball milling
Diffraction patterns
Electronic structure
Distribution functions
Hydrogen
Metals
Nuclear magnetic resonance
X ray diffraction
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Asano, K., Kim, H., Sakaki, K., Page, K., Hayashi, S., Nakamura, Y., & Akiba, E. (2014). Synthesis and structural study of Ti-rich Mg-Ti hydrides. Journal of Alloys and Compounds, 593, 132-136. https://doi.org/10.1016/j.jallcom.2014.01.061

Synthesis and structural study of Ti-rich Mg-Ti hydrides. / Asano, Kohta; Kim, Hyunjeong; Sakaki, Kouji; Page, Katharine; Hayashi, Shigenobu; Nakamura, Yumiko; Akiba, Etsuo.

:: Journal of Alloys and Compounds, 巻 593, 25.04.2014, p. 132-136.

研究成果: ジャーナルへの寄稿レター

Asano, K, Kim, H, Sakaki, K, Page, K, Hayashi, S, Nakamura, Y & Akiba, E 2014, 'Synthesis and structural study of Ti-rich Mg-Ti hydrides' Journal of Alloys and Compounds, 巻. 593, pp. 132-136. https://doi.org/10.1016/j.jallcom.2014.01.061
Asano K, Kim H, Sakaki K, Page K, Hayashi S, Nakamura Y その他. Synthesis and structural study of Ti-rich Mg-Ti hydrides. Journal of Alloys and Compounds. 2014 4 25;593:132-136. https://doi.org/10.1016/j.jallcom.2014.01.061
Asano, Kohta ; Kim, Hyunjeong ; Sakaki, Kouji ; Page, Katharine ; Hayashi, Shigenobu ; Nakamura, Yumiko ; Akiba, Etsuo. / Synthesis and structural study of Ti-rich Mg-Ti hydrides. :: Journal of Alloys and Compounds. 2014 ; 巻 593. pp. 132-136.
@article{830ab64c212145fba5ffed3ae7a624b1,
title = "Synthesis and structural study of Ti-rich Mg-Ti hydrides",
abstract = "MgxTi1-x (x = 0.15, 0.25, 0.35) alloys were synthesized by means of ball milling. Under a hydrogen pressure of 8 MPa at 423 K these Mg-Ti alloys formed a hydride phase with a face centered cubic (FCC) structure. The hydride for x = 0.25 consisted of single Mg 0.25Ti0.75H1.62 FCC phase but TiH2 and MgH2 phases were also formed in the hydrides for x = 0.15 and 0.35, respectively. X-ray diffraction patterns and the atomic pair distribution function indicated that numbers of stacking faults were introduced. There was no sign of segregation between Mg and Ti in Mg0.25Ti 0.75H1.62. Electronic structure of Mg 0.25Ti0.75H1.62 was different from those of MgH2 and TiH2, which was demonstrated by 1H nuclear magnetic resonance. This strongly suggested that stable Mg-Ti hydride phase was formed in the metal composition of Mg0.25Ti0.75 without disproportion into MgH2 and TiH2.",
author = "Kohta Asano and Hyunjeong Kim and Kouji Sakaki and Katharine Page and Shigenobu Hayashi and Yumiko Nakamura and Etsuo Akiba",
year = "2014",
month = "4",
day = "25",
doi = "10.1016/j.jallcom.2014.01.061",
language = "English",
volume = "593",
pages = "132--136",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Synthesis and structural study of Ti-rich Mg-Ti hydrides

AU - Asano, Kohta

AU - Kim, Hyunjeong

AU - Sakaki, Kouji

AU - Page, Katharine

AU - Hayashi, Shigenobu

AU - Nakamura, Yumiko

AU - Akiba, Etsuo

PY - 2014/4/25

Y1 - 2014/4/25

N2 - MgxTi1-x (x = 0.15, 0.25, 0.35) alloys were synthesized by means of ball milling. Under a hydrogen pressure of 8 MPa at 423 K these Mg-Ti alloys formed a hydride phase with a face centered cubic (FCC) structure. The hydride for x = 0.25 consisted of single Mg 0.25Ti0.75H1.62 FCC phase but TiH2 and MgH2 phases were also formed in the hydrides for x = 0.15 and 0.35, respectively. X-ray diffraction patterns and the atomic pair distribution function indicated that numbers of stacking faults were introduced. There was no sign of segregation between Mg and Ti in Mg0.25Ti 0.75H1.62. Electronic structure of Mg 0.25Ti0.75H1.62 was different from those of MgH2 and TiH2, which was demonstrated by 1H nuclear magnetic resonance. This strongly suggested that stable Mg-Ti hydride phase was formed in the metal composition of Mg0.25Ti0.75 without disproportion into MgH2 and TiH2.

AB - MgxTi1-x (x = 0.15, 0.25, 0.35) alloys were synthesized by means of ball milling. Under a hydrogen pressure of 8 MPa at 423 K these Mg-Ti alloys formed a hydride phase with a face centered cubic (FCC) structure. The hydride for x = 0.25 consisted of single Mg 0.25Ti0.75H1.62 FCC phase but TiH2 and MgH2 phases were also formed in the hydrides for x = 0.15 and 0.35, respectively. X-ray diffraction patterns and the atomic pair distribution function indicated that numbers of stacking faults were introduced. There was no sign of segregation between Mg and Ti in Mg0.25Ti 0.75H1.62. Electronic structure of Mg 0.25Ti0.75H1.62 was different from those of MgH2 and TiH2, which was demonstrated by 1H nuclear magnetic resonance. This strongly suggested that stable Mg-Ti hydride phase was formed in the metal composition of Mg0.25Ti0.75 without disproportion into MgH2 and TiH2.

UR - http://www.scopus.com/inward/record.url?scp=84893305568&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893305568&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2014.01.061

DO - 10.1016/j.jallcom.2014.01.061

M3 - Letter

VL - 593

SP - 132

EP - 136

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -