Formation of vanadium oxide (V-O System) graded compounds under strong gravitational field

Jahirul Islam Khandaker, Makoto Tokuda, Yudai Ogata, Tadao Nishiyama, Tsutomu Mashimo

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Strong gravitational field induces sedimentation of atoms due to the different body forces acting on respective atoms, and gives a tool for controlling elemental compositions in condensed matter. Vanadium oxide (V-O system) has large contrast in phases like VO, V2O3, VO2, V2O5 etc., and shows the respective interesting diverse electrical and optical properties. We performed a strong-gravity experiment (0.397×106G at 400°C for 24 hours) on a V2O5 polycrystal using the high temperature ultracentrifuge to examine the composition change and further the structure change. It was found by the XRD and Raman scattering method that VO2 and V2O3 phases appeared and the amounts were increased, while one of the V2O5 phase decreased gradually along with the increasing gravitational field.

本文言語English
ホスト出版物のタイトルDiffusion in Materials
編集者S.V. Divinski, N.A. Stolwijk, H. Bracht
出版社Trans Tech Publications Ltd
ページ164-170
ページ数7
363
ISBN(印刷版)9783038354277
DOI
出版ステータスPublished - 2015
外部発表はい
イベントInternational Conference on Diffusion in Materials, DIMAT 2014 - Munster, Germany
継続期間: 2014 8 172014 8 22

Other

OtherInternational Conference on Diffusion in Materials, DIMAT 2014
国/地域Germany
CityMunster
Period14/8/1714/8/22

ASJC Scopus subject areas

  • 放射線
  • 材料科学(全般)
  • 凝縮系物理学

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