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Cieslak J, Dubiel SM, Reissner M. Site occupancy and lattice parameters in sigma-phase Co-Cr alloys. Acta Crystallogr B. 2012;68:123-7doi: 10.1107/S0108768112006234.
Cieslak, J., Dubiel, S. M., & Reissner, M. (2012). Site occupancy and lattice parameters in sigma-phase Co-Cr alloys. Acta crystallographica. Section B, Structural science, 68123-7. https://doi.org/10.1107/S0108768112006234
Cieslak, Jakub, et al. "Site occupancy and lattice parameters in sigma-phase Co-Cr alloys." Acta crystallographica. Section B, Structural science vol. 68 (2012): 123-7. doi: https://doi.org/10.1107/S0108768112006234
Cieslak J, Dubiel SM, Reissner M. Site occupancy and lattice parameters in sigma-phase Co-Cr alloys. Acta Crystallogr B. 2012 Apr;68:123-7. doi: 10.1107/S0108768112006234. Epub 2012 Mar 20. PMID: 22436910.
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Acta Crystallogr B. 2012 Apr;68:123-7. doi: 10.1107/S0108768112006234. Epub 2012 Mar 20.

Site occupancy and lattice parameters in sigma-phase Co-Cr alloys.

Acta crystallographica. Section B, Structural science

Jakub Cieslak, Stanislaw M Dubiel, Michael Reissner

Affiliations

  1. AGH University of Science and Technology, Faculty of Physics and Applied Computer Sicence, al. A. Mickiewicza 30, PL-30-059 Kraków, Poland.

PMID: 22436910 DOI: 10.1107/S0108768112006234

Abstract

Neutron powder diffraction was used to study the distribution of Co and Cr atoms over different lattice sites as well as the lattice parameters of sigma-phase compounds Co(100 - x)Cr(x) with x = 57.0, 62.7 and 65.8. From the diffractograms recorded in the temperature range of 4.2-300 K it was found for the five crystallographically independent sites that A (2a) and D (8i) are predominantly occupied by Co atoms, while sites B (4f), C (8i) and E (8j) mainly accommodate Cr atoms. The lattice parameters a and c exhibit linear temperature dependencies, with different expansion coefficients in the temperature ranges of 4.2-100 and 100-300 K.

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