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Powder diffraction refinement of the Co2Al5 structure

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Burkhardt, U., Ellner, M., Grin, Y., & Baumgartner, B. (1998). Powder diffraction refinement of the Co2Al5 structure. Powder Diffraction, 13(3), 159-162. doi:10.1017/S0885715600010022.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-91DC-A
Abstract
The structure of Co2Al5 (hP28, P6(3)/mmc) was refined by means of Rietveld method. The shortest Co-Al distance amounts 2.338 Angstrom. Co2Al5 shows a homogeneity range between Co29Al71 and Co27.5Al72.5 at 1125 K. The concentration dependence of lattice parameters was also measured. The axial ratio c/a increases with increasing mole fraction of aluminum. (C) 1998 International Centre for Diffraction Data. [S0885-7156(98)00701-5]