Open AccessSTUDY ON THE MICROSTRUCTURE OF AMORPHOUS ALLOYS TM80M20 BY MSSBAUER SPECTROSCOPY
Author(s) -
Yanchao Xu,
M. Ghafary,
U. Gonser
Publication year - 1987
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.36.902
Subject(s) - amorphous solid , microcrystalline , materials science , mössbauer spectroscopy , microstructure , amorphous metal , hyperfine structure , spectroscopy , crystallography , condensed matter physics , analytical chemistry (journal) , nuclear magnetic resonance , metallurgy , physics , chemistry , atomic physics , quantum mechanics , chromatography
The Mossbauer spectra of amorphous alloys Fe80B20-xMx (M = P, C) at room temperature and 4.2 K have been measured. It is found that the mean values of the hyperfine field and the isomer shift vary linearly when M (P, C) substitutes for B. Two structure models of amorphous alloys, microcrystal model and Bernal-Polk model, have been compared using these results and that of their crystalline counterparts. The study suggests that there do not exist a microcrystalline short range order and corresponding transition in amorphous alloys TM-M as in the crystalline counterparts. For describing the microstructure of amorphous alloys TM-M the Bernal-Polk model is preferable to the microcrystal model.