Leed Observations of the State of the Surface of Martensitically Transforming Cobalt

A. Ignatiev*, R. Alsenz, B. W. Lee, M. A. VAN HOVE

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

The hcp to fcc transformation at the (0001) surface of cobalt has been observed by low energy electron diffraction. Well ordered phases were obtained on both sides of the transformations. Intensity-voltage spectra were compared to dynamical calculations. It has been determined that the temperature stable surface phase is pure hcp, like that of the bulk, and remains so upon heating until a temperature of similar 450 degree C when the surface completely transforms in a first-order manner. The high temperature stable surface phase has been determined to be pure fcc, like that of the bulk. This phase reverts to hcp in a more second-order like manner upon cooling to similar 400 degree C.

Original languageEnglish
Pages2435-2438
Number of pages4
Publication statusPublished - 1977
EventProc of the Int Vac Congr, 7th, and the Int Conf on Solid Surf, 3rd, of the Int Union for Vac Sci, Tech and Appl - Vienna, Austria
Duration: 12 Sep 197716 Sep 1977

Conference

ConferenceProc of the Int Vac Congr, 7th, and the Int Conf on Solid Surf, 3rd, of the Int Union for Vac Sci, Tech and Appl
CityVienna, Austria
Period12/09/7716/09/77

Scopus Subject Areas

  • Engineering(all)

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