Pressure-dependent structure of the null-scattering alloy Ti 0.676Zr0.324

Anita Zeidler, Malcolm Guthrie, Philip S. Salmon

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The room temperature structure of the alloy was measured by X-ray diffraction under compression at pressures up to. This alloy is used as a construction material in high pressure neutron-scattering research and has a mean coherent neutron scattering length of zero, that is, it is a so-called null-scattering alloy. A broad phase transition was observed from a hexagonal close-packed α-phase to a hexagonal ω-phase, which started at a pressure of and was completed by. The data for the α-phase were fitted by using a third-order Birch-Murnaghan equation of state, giving an isothermal bulk modulus and pressure derivative. The results will help to ensure that accurate structural information can be gained from in situ high pressure neutron diffraction work on amorphous and liquid materials where the alloy is used as a gasket material.

Original languageEnglish
Pages (from-to)239-246
Number of pages8
JournalHigh Pressure Research
Volume35
Issue number3
DOIs
StatePublished - Jul 3 2015
Externally publishedYes

Funding

FundersFunder number
Engineering and Physical Sciences Research CouncilEP/J009741/1

    Keywords

    • X-ray diffraction
    • equation of state
    • high pressure
    • neutron diffraction

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