Lattice dynamics, thermal and elastic properties of hafnium

The lattice dynamics, third-order elastic (TOE) constants and thermal expansion of h.c.p. hafnium are worked out employing a model based on Keatmg'e approach. The lattice heat capacity of hafnium calculated using a frequency distribution function that involves 50 880 frequencies, shows reasonab...

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Veröffentlicht in:Philosophical magazine. A, Physics of condensed matter. Defects and mechanical properties Physics of condensed matter. Defects and mechanical properties, 1979-12, Vol.40 (6), p.769-778
Hauptverfasser: Rao, R. Ramji, Rajput, A.
Format: Artikel
Sprache:eng
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Zusammenfassung:The lattice dynamics, third-order elastic (TOE) constants and thermal expansion of h.c.p. hafnium are worked out employing a model based on Keatmg'e approach. The lattice heat capacity of hafnium calculated using a frequency distribution function that involves 50 880 frequencies, shows reasonably good agreement with the experimental data. The variation of the lattice parameters of hafnium is also investigated using its TOE constants in Thurston's extrapolation formulae.
ISSN:0141-8610
1460-6992
DOI:10.1080/01418617908234873