Lattice dynamics and thermomechanical properties of zirconium(IV) chloride: Evidence for low-temperature negative thermal expansion
Journal Article
·
· Chemical Physics Letters
- Univ. of Nevada, Las Vegas, NV (United States). Department of Physics and Astronomy
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. of Nevada, Las Vegas, NV (United States). Department of Chemistry
For this research, the crystal structure, lattice dynamics and themomechanical properties of bulk monoclinic zirconium tetrachloride (ZrCl4) have been investigated using zero-damping dispersion-corrected density functional theory [DFT-D3(zero)]. Phonon analysis reveals that ZrCl4(cr) undergoes negative thermal expansion (NTE) near T≈10 K, with a coefficient of thermal expansion of α=-1.2 ppm K-1 and a Grüneisen parameter of γ=-1.1. The bulk modulus is predicted to vary from K0=8.7 to 7.0 GPa in the temperature range 0–550 K. Lastly, the isobaric molar heat capacity derived from phonon calculations within the quasi-harmonic approximation is in fair agreement with existing calorimetric data.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Nuclear Energy (NE)
- Grant/Contract Number:
- AC04-94AL85000; NA0003525
- OSTI ID:
- 1411613
- Alternate ID(s):
- OSTI ID: 1576822
- Report Number(s):
- SAND-2017-9739J; PII: S0009261417310084; TRN: US1800250
- Journal Information:
- Chemical Physics Letters, Vol. 691, Issue C; ISSN 0009-2614
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 4 works
Citation information provided by
Web of Science
Web of Science
Zirconium chloride molecular species: combining electron impact mass spectrometry and first principles calculations
|
journal | April 2019 |
Zirconium chloride molecular species: combining electron impact mass spectrometry and first principles calculations
|
text | January 2019 |
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