Structural transformation and chemical reduction of Pr24O44 induced by the electron beam during microscopical examination

E. Schweda, L. Eyring, David Smith

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The effects of electron beam irradiation on Pr24O44 were followed at high resolution in a JEM-4000EX electron microscope. Two categories of electron beam effects are reported. In one image sequence, the orientational transformation of Pr24O44 from the [100] to the [313] direction was observed to occur. In another sequence, reduction of Pr24O44 to Pr40O72 resulted from intense beam irradiation. Electron diffraction patterns showed the further reduction of the specimen to Pr7O12 and finally to Pr2O3.

Original languageEnglish (US)
Pages (from-to)443-451
Number of pages9
JournalUltramicroscopy
Volume23
Issue number3-4
DOIs
StatePublished - 1987

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Instrumentation

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