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2001 | 100 | 5 | 723-729
Article title

A Search for Thermal Vacancies Forming Close Frenkel Pairs in Fe-Cr Alloys

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EN
Abstracts
EN
The room temperature Mössbauer spectra of ^{57}Fe were measured for the bcc Fe_{0.948}Cr_{0.052} solid solution quenched into water being at about 295 K from different temperatures not exceeding 1000 K, i.e. from the temperatures for which probabilities of formation of "clear" (Schottky) vacancies as well as vacancies forming the separate interstitial-vacancy (Frenkel) pairs are negligibly low. The obtained data were analysed in terms of concentration of unoccupied places in the 14-site surroundings of an ^{57}Fe Mössbauer probe in the sample. It turned out that the concentration of vacancies detected by the probe increases with temperature very rapidly - at the rate of about 10^{-4} K^{-1}. The result may suggest that the Mössbauer probe is sensitive to a possible thermal distortion of the lattice or creation of very close Frenkel pairs (the interstitial is the nearest neighbour of the vacant lattice site).
Keywords
EN
Year
Volume
100
Issue
5
Pages
723-729
Physical description
Dates
published
2001-11
received
2001-05-14
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv100n501kz
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