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Effect of the Isotopic Composition of Fe on Its Linear Thermal Expansion Coefficient

Effect of the Isotopic Composition of Fe on Its Linear Thermal Expansion Coefficient —The linear thermal expansion coefficients (LTECs) of isotopically natural Fe (natFe) and samples isotopically enriched in 56Fe (99.945 wt %) and 57Fe (90.954 wt %) have been determined as functions of temperature by X-ray diffraction dilatometry in the temperature range 173–433 K. The low-temperature LTEC of 57Fe has been shown to be larger. As the temperature is raised to the range 368–433 K, the difference between the LTECs of the samples differing in isotopic composition decreases. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Inorganic Materials Springer Journals

Effect of the Isotopic Composition of Fe on Its Linear Thermal Expansion Coefficient

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References (31)

Publisher
Springer Journals
Copyright
Copyright © Pleiades Publishing, Ltd. 2021. ISSN 0020-1685, Inorganic Materials, 2021, Vol. 57, No. 11, pp. 1135–1139. © Pleiades Publishing, Ltd., 2021. Russian Text © The Author(s), 2021, published in Neorganicheskie Materialy, 2021, Vol. 57, No. 11, pp. 1202–1206.
ISSN
0020-1685
eISSN
1608-3172
DOI
10.1134/s0020168521110029
Publisher site
See Article on Publisher Site

Abstract

—The linear thermal expansion coefficients (LTECs) of isotopically natural Fe (natFe) and samples isotopically enriched in 56Fe (99.945 wt %) and 57Fe (90.954 wt %) have been determined as functions of temperature by X-ray diffraction dilatometry in the temperature range 173–433 K. The low-temperature LTEC of 57Fe has been shown to be larger. As the temperature is raised to the range 368–433 K, the difference between the LTECs of the samples differing in isotopic composition decreases.

Journal

Inorganic MaterialsSpringer Journals

Published: Nov 1, 2021

Keywords: Fe isotopes; impurity composition; thermal expansion; isotope effect

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