ISIS Neutron and Muon Source Data Journal

Early Stage Cluster Structure of Al-Mg-Si-Cu alloys

Abstract: We would like to study the time dependence of the dipole width, trapping rate, and detrapping rate with Al-Mg-Si-Cu alloys in the temperature range from 260 to 300 K by zero-field muon spin relaxation method. Since the trace element Cu has the largest binding energy with vacancy among the elements and the smallest diffusivity in aluminum, we expect slow time variations of muon spin relaxaxtion rates with a larger Cu concentration sample. The temperature dependence of time variation of the trapping rate and detrapping rate will give Arrhenius plots which enable estimations of activation energies of clustering. The experimental values of the dipole width, trapping rate, detrapping rate and activation energy are quite useful to carry out the density functional calculations to figure out the early stage cluster structure of muon trapping sites in Al-Mg-Si-Cu alloys.

Principal Investigator: Professor Katsuhiko Nishimura
Experimenter: Professor Kenji Matsuda
Experimenter: Dr Takahiro Namiki
Local Contact: Dr Katsuhiko Ishida
Experimenter: Dr Seungwon Lee
Experimenter: Dr Isao Watanabe

DOI: 10.5286/ISIS.E.RB1870028

ISIS Experiment Number: RB1870028

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 Katsuhiko Nishimura et al; (2019): Early Stage Cluster Structure of Al-Mg-Si-Cu alloys, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1870028

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