In situ transmission electron microscopy and ion irradiation of ferritic materials

Marquis A. Kirk, Peter M. Baldo, Amelia C.Y. Liu, Edward A. Ryan, Robert C. Birtcher, Zhongwen Yao, Sen Xu, Michael L. Jenkins, Mercedes Hernandez-Mayoral, Djamel Kaoumi, Arthur T. Motta

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

The intermediate voltage electron microscope-tandem user facility in the Electron Microscopy Center at Argonne National Laboratory is described. The primary purpose of this facility is electron microscopy with in situ ion irradiation at controlled sample temperatures. To illustrate its capabilities and advantages a few results of two outside user projects are presented. The motion of dislocation loops formed during ion irradiation is illustrated in video data that reveals a striking reduction of motion in Fe-8%Cr over that in pure Fe. The development of extended defect structure is then shown to depend on this motion and the influence of nearby surfaces in the transmission electron microscopy thin samples. In a second project, the damage microstructure is followed to high dose (200 dpa) in an oxide dispersion strengthened ferritic alloy at 500°C, and found to be qualitatively similar to that observed in the same alloy neutron irradiated at 420°C.

Original languageEnglish (US)
Pages (from-to)182-186
Number of pages5
JournalMicroscopy Research and Technique
Volume72
Issue number3
DOIs
StatePublished - Mar 1 2009

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Histology
  • Instrumentation
  • Medical Laboratory Technology

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