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Foss S, Olsen A, Simensen CJ, et al. Determination of the crystal structure of the pi-AlFeMgSi phase using symmetry- and site-sensitive electron microscope techniques. Acta Crystallogr B. 2003;59:36-42doi: 10.1107/s0108768102022887.
Foss, S., Olsen, A., Simensen, C. J., & Taftø, J. (2003). Determination of the crystal structure of the pi-AlFeMgSi phase using symmetry- and site-sensitive electron microscope techniques. Acta crystallographica. Section B, Structural science, 5936-42. https://doi.org/10.1107/s0108768102022887
Foss, S, et al. "Determination of the crystal structure of the pi-AlFeMgSi phase using symmetry- and site-sensitive electron microscope techniques." Acta crystallographica. Section B, Structural science vol. 59 (2003): 36-42. doi: https://doi.org/10.1107/s0108768102022887
Foss S, Olsen A, Simensen CJ, Taftø J. Determination of the crystal structure of the pi-AlFeMgSi phase using symmetry- and site-sensitive electron microscope techniques. Acta Crystallogr B. 2003 Feb;59:36-42. doi: 10.1107/s0108768102022887. Epub 2003 Jan 28. PMID: 12554970.
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Acta Crystallogr B. 2003 Feb;59:36-42. doi: 10.1107/s0108768102022887. Epub 2003 Jan 28.

Determination of the crystal structure of the pi-AlFeMgSi phase using symmetry- and site-sensitive electron microscope techniques.

Acta crystallographica. Section B, Structural science

S Foss, A Olsen, C J Simensen, J Taftø

Affiliations

  1. Department of Physics, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, Norway. [email protected]

PMID: 12554970 DOI: 10.1107/s0108768102022887

Abstract

The crystal structure of the complex pi-AlFeMgSi phase, which was previously thought to have the composition Al(8)FeMg(3)Si(6), has been investigated. Microprobe analysis revealed that the phase has a different composition, Al(9)FeMg(3)Si(5). The space group was determined and confirmed to be P62m with the use of parallel-beam electron diffraction (SAD) and convergent-beam electron diffraction (CBED). Owing to symmetry considerations the elements within the unit cell had to be rearranged. The rearrangement was confirmed using electron channelling. The z parameters of the elements were refined by examining the intensities from high-angle convergent-beam electron diffraction. Finally, the x parameters were adjusted slightly to arrive at acceptable interatomic distances.

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