Phase transition of MnF2 by shock compression up to 33 GPa

T. Hongo, N. Kawai, K. G. Nakamura, T. Atou, K. Yubuta, K. Kusaba, M. Kikuchi, K. Kondo

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

1 Citation (Scopus)

Abstract

Rutile type MnF2 was shock-loaded to 3.6 - 33.4 GPa by impact of flyer plates accelerated by a propellant gun. Recovered samples were studied by X-ray powder diffraction and transmission electron microscope (TEM). The phase transition of rutile type to the α-PbO2 type structure was found in the recovered sample. The yield of α-PbO2 phase in the recovered sample increases up to about 10 GPa, and decreased at high pressures. The XRD line width of rutile phase (110) also has maximum at pressure of 10 GPa, and that of α-PbO2 phase (111) is broader than rutile phase and almost constant against shock pressure. The lamellae pattern, which consists of two crystal phases (rutile and α-PbO2 phase), was observed in the shock recovered sample from 8.3 GPa by TEM.

Original languageEnglish
Title of host publicationSHOCK COMPRESSION OF CONDENSED MATTER - 2005
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Pages224-227
Number of pages4
DOIs
Publication statusPublished - 2006
EventSHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter - Baltimore, MD, United States
Duration: 2005 Jul 312005 Aug 5

Publication series

NameAIP Conference Proceedings
Volume845 I
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherSHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
CountryUnited States
CityBaltimore, MD
Period05/7/3105/8/5

Keywords

  • Lammelae
  • Manganese fluoride
  • Phase transition
  • Shock recovery experiment

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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