TEM observation of disproportionation of mullite and sillimanite under shock compression

T. Atou, N. Kawai, K. G. Nakamura, K. Kondo, S. Ito, K. Yubuta, M. Kikuchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Shock recovery experiment on sillimanite was conducted using a two-stage light-gas gun to clarify origin of the peculiar nano-frgmentation observed in mullite. Recovered sillimanite was examined by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM). Shock recovered sillimanite showed amorphization by XRD measurements as seen in mullite. However, microtexture observed by TEM showed characteristic planar deformation structures and following amorphization, which are considerably different from those observed in mullite. Importance of oxygen vacancies in crystal structure of mullite for the nano-fragmentation was inferred from comparison to the present result on sillimanite.

Original languageEnglish
Title of host publicationShock Compression of Condensed Matter - 2007
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2007 APS SCCM
Pages143-146
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
Event15th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2007 - Waikoloa, HI, United States
Duration: 2007 Jun 242007 Jun 29

Publication series

NameAIP Conference Proceedings
Volume955
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other15th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter, SCCM 2007
CountryUnited States
CityWaikoloa, HI
Period07/6/2407/6/29

Keywords

  • Crystal structure
  • Disproportionation
  • Fragmentation
  • Mullite
  • Phase transition
  • Sillimanite

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Atou, T., Kawai, N., Nakamura, K. G., Kondo, K., Ito, S., Yubuta, K., & Kikuchi, M. (2007). TEM observation of disproportionation of mullite and sillimanite under shock compression. In Shock Compression of Condensed Matter - 2007: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, 2007 APS SCCM (pp. 143-146). (AIP Conference Proceedings; Vol. 955). https://doi.org/10.1063/1.2832994