Accession Number : AD0770893

Title :   An Investigation of the Debye-Waller Factor near the Temperature of the Phase Transition of the First Kind in Cobalt,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Bokshtein,B. S. ; Voitkovskii,Yu. B. ; Nikolskii,G. S. ; Razumovskii,I. M.

Report Date : 12 NOV 1973

Pagination or Media Count : 9

Abstract : Values of the Debye-Waller factor f' in cobalt containing 7% by weight Fe, are calculated on the basis of nuclear gamma-resonance spectra for temperatures between 20 and 250C. A considerable decrease of f' is observed near the temperature of the beginning of the phase transition of the first kind Ms = 140 plus or minus 5 degrees C. It is suggested that this effect may be due to a decrease of the lattice force constants near Ms.

Descriptors :   *Cobalt alloys, *Iron alloys, *Phase transformations, Thermodynamics, Crystal defects, Translations, USSR

Subject Categories : Physical Chemistry
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE