Observation of precipitates in aluminum alloys by sub-micrometer resolution tomography using fresnel zone plate

Hiroyuki Toda, Keisuke Minami, Masakazu Kobayashi, Kentaro Uesugi, Akihisa Takeuchi, Toshiro Kobayashi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

3 被引用数 (Scopus)

抄録

An X-ray microtomography combined with hard X-ray imaging microscopy, that potentially has a spatial resolution of the order of 10 to 100 nm, has been applied to the three-dimensional observation of internal microstructural features in overaged Al-Ag alloys. A Fresnel zone plate is used as an objective with a magnification of 49.3 times. Imaging of resolution test patterns has indicated spatial resolutions of around 180 and 200 nm in the vertical and horizontal directions, respectively. This paper reports the first impression of the microstructural imaging by means of such a high-resolution imaging microtomography. Precipitate microstructures are readily observed and quantified in terms of volume fraction and orientation. Conventional microtomography with a simple projection geometry is also applied for comparison purpose at the highest resolution level currently available at a third generation synchrotron facility. It would appear that the present technique provides a unique potential to observe the 3-D geometry and spatial distribution of nanoscopic features inside samples that are several orders of magnitude thicker than thin-foil specimens for TEM observation.

本文言語英語
ホスト出版物のタイトルAluminium Alloys 2006
ホスト出版物のサブタイトルResearch Through Innovation and Technology - Proceedings of the 10th International Conference on Aluminium Alloys
ページ1361-1366
ページ数6
PART 2
出版ステータス出版済み - 12 1 2006
外部発表はい
イベント10th International Conference on Aluminium Alloys, (ICAA-10) - Vancouver, カナダ
継続期間: 7 9 20067 13 2006

出版物シリーズ

名前Materials Science Forum
番号PART 2
519-521
ISSN(印刷版)0255-5476

その他

その他10th International Conference on Aluminium Alloys, (ICAA-10)
Countryカナダ
CityVancouver
Period7/9/067/13/06

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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