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RESEARCH PRODUCT
Comment on “Molybdenum sound velocity and shear modulus softening under shock compression”
Daniel ErrandoneaM. RossReinhard Boehlersubject
Phase transitionMaterials scienceShock (fluid dynamics)Condensed matter physicsPartial meltingchemistry.chemical_elementPressure dependenceCondensed Matter PhysicsCompression (physics)Electronic Optical and Magnetic MaterialsShear moduluschemistryMolybdenumSofteningdescription
In this Comment we discuss recent results presented by Nguyen et al. on shock compressed molybdenum up to 438 GPa [Phys. Rev. B 89, 174109 (2014)]. The aim of Nguyen's article is to show that there is no phase transition near 210 GPa. We propose instead an interpretation of their data that this material shows the onset of partial melting along the Hugoniot at $240(20)\phantom{\rule{0.28em}{0ex}}\mathrm{GPa}$, which is evident from abrupt changes in the pressure dependence of the shear modulus. This interpretation may solve the significant controversy in the melting slopes derived from shock and static experiments.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-07-27 | Physical Review B |