ISIS Neutron and Muon Source Data Journal

Deformation Studies of Mg-PSZ under Compressive and Tensile Loading

Abstract: Zirconia is a brittle ceramic whose usefulness is negated by phase transformations which are accompanied by strains and the consequent stresses lead to cracking. The addition of MgO stabilises the high temperature phases. Transformation is triggered by an applied stress, so that crack tips are closed by the dilatational strains. This “transformation toughening” makes for a useful engineering material. There are two, little-understood features of the material. First, the martensitic transformation in Mg-PSZ is time-dependent, causing creep under a constant stress. Second, when the applied stress is removed, the creep reverses. These phenomena occur under both tensile and compressive stresses, but at very different magnitudes. A model has been proposed that explains some aspects of this behaviour and this project aims to test it and to further understand these features.

Principal Investigator: Dr Trevor Finlayson
Experimenter: Professor George Franks
Experimenter: Professor Erich Kisi
Experimenter: Dr Joe Kelleher
Experimenter: Dr Mitchell Sesso
Experimenter: Dr John Griffiths
Experimenter: Professor Patrick Kelly

DOI: 10.5286/ISIS.E.RB1810284

ISIS Experiment Number: RB1810284

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Trevor Finlayson et al; (2018): Deformation Studies of Mg-PSZ under Compressive and Tensile Loading, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810284

Data is released under the CC-BY-4.0 license.