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 ( nat Fe) and samples isotopically enriched in 56 Fe (99.945 wt %) and 57 Fe (90.954 wt %) have been determined as functions of temperature by X-ray diffraction dilatometry in the temperature range 173–433 K. The low-temp...

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Veröffentlicht in:Inorganic materials 2021-11, Vol.57 (11), p.1135-1139
Hauptverfasser: Belozerov, Yu. S., Knyazev, A. V., Kodess, B. N., Shipilova, A. S., Steshin, M. O., Troshin, O. Yu, Bulanov, A. D.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Composition effects
Dilatometry
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Iron 57
Iron isotopes
Isotopes
Low temperature
Materials Science
Thermal expansion
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Zusammenfassung:— The linear thermal expansion coefficients (LTECs) of isotopically natural Fe ( nat Fe) and samples isotopically enriched in 56 Fe (99.945 wt %) and 57 Fe (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 57 Fe 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.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168521110029