Melting and refreezing of zirconium observed using ultrafast x-ray diffraction

Radousky, Harry B.; Armstrong, Michael R.; Austin, Ryan; Stavrou, Elissaios; Brown, Shaughnessy; Chernov, A. A.; Gleason, A. E.; Grivickas, Paulius; Holtgrewe, Nicholas; Lee, Hae Ja; Lobanov, Sergey S.; Nagler, Bob; Nam, Inhyuk; Prakapenka, Vitali B.; Prescher, Clemens; Walter, Peter; Goncharov, A. F.; Belof, Jonathan L.

doi:10.1103/physrevresearch.2.013192

Cited by 26 publications

(5 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Parisiades et al [7] failed to fit their data with LG criterion because they used as an anchor the handbook ambient melting pressure (2128K) measured in the open space. Miss fitting has been reported recently by B. Radousky [27] for the same reason. This melting point do not exist in the DAC.…”

Section: Lindemann-gilvarry Approximation-according To Lindenmann's C...supporting

confidence: 60%

Cascading crystallographic transitions α → ω → β → β’→ β" and melting curve of elemental zirconium

Gál

2021

Physica B: Condensed Matter

View full text Add to dashboard Cite

Section: Lindemann-gilvarry Approximation-according To Lindenmann's C...supporting

confidence: 60%

Cascading crystallographic transitions α → ω → β → β’→ β" and melting curve of elemental zirconium

Gál

2021

Physica B: Condensed Matter

View full text Add to dashboard Cite

“…Our QMD calculations predict a substantial volume change on melting of about 2.6%, in addition to quite a low value of calculated enthalpy of fusion (≈ 14 kJ/mol). This fact leads to the steep slope of the melting curve at P = 0 of dT m /dP = 60 K/GPa predicted by QMD contrary to laser-heated diamond anvil cell experiments [5,121,122] where 24-28 K/GPa was proposed.…”

Section: Discussionmentioning

confidence: 74%

Ab initio inspection of thermophysical experiments for zirconium near melting

Paramonov¹,

Minakov²,

Fokin³

et al. 2021

Preprint

View full text Add to dashboard Cite

We present quantum molecular dynamics calculations of thermophysical properties of solid and liquid zirconium in the vicinity of melting. An overview of available experimental data is also presented. We focus on the analysis of thermal expansion, molar enthalpy, resistivity and normal spectral emissivity of solid and liquid Zr. Possible reasons of discrepancies between the firstprinciple simulations and experiments are discussed. Our calculations reveal a significant volume change on melting in agreement with electrostatic levitation experiments. Meanwhile, we confirm a low value of enthalpy of fusion obtained in some pulse-heating experiments. Electrical resistivity of solid and liquid Zr is systematically underestimated in our simulations, however the slope of resistivity temperature dependencies agrees with experiment. Our calculations predict almost constant normal spectral emissivity in liquid Zr.

show abstract

“…For diffraction experiments the beamline is equipped with multiple detectors arranged behind the sample in a Debye-Scherrer geometry (see figure 7, and the 2D diffraction images can then be combined into a single 1D profile. The quality of the diffraction data obtainable at MEC with single x-ray pulses is remarkable, and since 2012 the users of MEC have pioneered diffraction studies of shock-induced phase transitions in solids [124][125][126] and liquids [127,128], crystallization [129], melting and refreezing [130][131][132], and texture changes [133] in high-pressures states. In addition, researchers have used phase-contrast imaging (PCI) to study of the passage of shock wave through materials [134], and have performed simultaneous PCI and diffraction studies of high-pressure states [135].…”

Section: Laser Compression At Xfel Sourcesmentioning

confidence: 99%

Probing extreme states of matter using ultra-intense x-ray radiation

McMahon

2021

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Extreme states of matter, that is, matter at extremes of density (pressure) and temperature, can be created in the laboratory either statically or dynamically. In the former, the pressure–temperature state can be maintained for relatively long periods of time, but the sample volume is necessarily extremely small. When the extreme states are generated dynamically, the sample volumes can be larger, but the pressure–temperature conditions are maintained for only short periods of time (ps to μs). In either case, structural information can be obtained from the extreme states by the use of x-ray scattering techniques, but the x-ray beam must be extremely intense in order to obtain sufficient signal from the extremely-small or short-lived sample. In this article I describe the use of x-ray diffraction at synchrotrons and XFELs to investigate how crystal structures evolve as a function of density and temperature. After a brief historical introduction, I describe the developments made at the Synchrotron Radiation Source in the 1990s which enabled the almost routine determination of crystal structure at high pressures, while also revealing that the structural behaviour of materials was much more complex than previously believed. I will then describe how these techniques are used at the current generation of synchrotron and XFEL sources, and then discuss how they might develop further in the future at the next generation of x-ray lightsources.

show abstract

Melting and refreezing of zirconium observed using ultrafast x-ray diffraction

Cited by 26 publications

References 31 publications

Cascading crystallographic transitions α → ω → β → β’→ β" and melting curve of elemental zirconium

Cascading crystallographic transitions α → ω → β → β’→ β" and melting curve of elemental zirconium

Ab initio inspection of thermophysical experiments for zirconium near melting

Probing extreme states of matter using ultra-intense x-ray radiation

Contact Info

Product

Resources

About