A neutron powder diffraction study of Ta2C and W2C

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Abstract

Samples of Ta2C and W2C have been prepared by arc melting. Their crystal structures were studied by neutron powder diffraction. Ta2C crystallizes in the anti-CdI2-type structure (P3m1, No. 164) while W2C crystallizes in the ϵ-Fe2N-type structure (P31m, No. 162). The tungsten carbide was carbon deficient (W2C0.84) and partly disordered. The carbon atoms partially occupy three different atomic positions.

References (17)

  • B. Lönnberg

    J. Less-Common Met.

    (1986)
  • A.L. Bowman et al.

    Acta Crystallogr.

    (1965)
  • A.L. Bowman et al.
  • L.N. Butorina et al.

    Soviet Phys. Cryst.

    (1960)
  • A. Hårsta et al.

    Acta Chem. Scand., Sect. A

    (1978)
  • K. Yvon et al.

    Monatsh. Chem.

    (1968)
  • T. Epicier et al.

    C.R. Acad. Sci. (Paris)

    (1983)
  • E. Rudy et al.

    J. Am. Ceram. Soc.

    (1967)
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