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The precise determination of the lattice parameter of α‐iron and some of its alloys
Author(s) -
Lutts A.,
Gielen P.
Publication year - 1971
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889871006770
Subject(s) - lattice constant , lattice (music) , materials science , thermodynamics , thermal , sensitivity (control systems) , iron alloys , chemistry , analytical chemistry (journal) , metallurgy , diffraction , physics , optics , chromatography , electronic engineering , acoustics , engineering
A method, applicable using either the transmission Kossel or divergent X‐ray beam techniques, is described in detail. Calculations have shown that its greatest sensitivity corresponds to the lattice parameter region slightly less than that of pure α‐iron. Its most useful applications should thus be for the study of α‐iron alloys containing Be, Co or Si, elements which decrease the parameter of α‐iron, as well as the low‐temperature thermal expansion coefficients of other α‐iron alloys. Its sensitivity still seems sufficient, however, for the parameter determination at room temperature of interstitial alloys such as Fe–C and Fe–N. This method is not applicable to those α‐iron alloys containing appreciable concentrations of Ti, V, Cr or Mn.