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Structure of Co2Al9

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Abstract

IN an earlier note1 the determination of the unit cell and space-group of the phase which exists in equilibrium with the restricted solid solution of cobalt in aluminium was described. The ideal composition was shown to be represented by the formula Co2Al9. The space-group is P21/a, and recent work has given more accurate values of the parameters, as follows : a = 8·5565 ± 0·0005 A., b = 6·290 ± 0·005 A., c = 6·2130 ± 0·0005 A., β = 94·760° ± 0.005°.*

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References

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  1. Crystallographic Laboratory, Cavendish Laboratory, Free School Lane, Cambridge

    A. M. B. DOUGLAS

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  1. A. M. B. DOUGLAS
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DOUGLAS, A. Structure of Co2Al9. Nature 162, 565–566 (1948). https://doi.org/10.1038/162565b0

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