ISIS Neutron and Muon Source Data Journal

Proving the succesful synthesis of the chemically-ordered L10 FeNi phase

Abstract: The tetragonal chemically-ordered L10 FeNi phase has great potential for advanced permanent magnet applications due to its compelling magnetic properties, low cost and availability of its constituent elements. While L10 FeNi is found in meteorites, bulk synthesis has not been achieved due to its low order-disorder temperature of 320°C, below which phase formation is kinetically limited. In this research we explore pathways to synthesize L10 FeNi in earthly timeframes. Preliminary neutron testing of our samples has provided initial evidence of successful formation of a tetragonal FeNi phase, but chemical ordering has not been detected. Additional beam time at HRPD is requested to test samples fabricated with the stable isotope 62Ni, calculated to amplify the difference in scattering factors of Fe and Ni, enhancing the intensity of the superlattice peaks arising from chemical ordering.

Principal Investigator: Professor Laura Lewis
Experimenter: Professor Sean Langridge
Experimenter: Mrs Ana Maria Montes Arango
Experimenter: Dr Dominic Fortes
Experimenter: Dr Luke Marshall
Experimenter: Dr Kevin Knight
Experimenter: Dr Christy Kinane
Experimenter: Dr Kevin Knight

DOI: 10.5286/ISIS.E.RB1520118

ISIS Experiment Number: RB1520118

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:
Professor Laura Lewis et al; (2015): Proving the succesful synthesis of the chemically-ordered L10 FeNi phase , STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1520118

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