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Anisotropic electrical and thermal conductivities of the Al76Co22Ni2 decagonal approximant

Zeitschrift Fur Kristallographie 224(1-2): 56-58

Autoren/Herausgeber: Smontara A
Stanic D
Smiljanic I
Dolinsek J
Gille P
Erschienen: 2009

The electrical (sigma) and thermal conductivity (lambda) of Al76Co22Ni2 decagonal approximant has been measured along three orthogonal directions a*, b and c of the Al76Co22Ni2 unit cell, where (a, c) monoclinic atomic planes are stacked along the perpendicular b direction. Electrical conductivity is relatively high in all crystalline directions, appearing in the order sigma(b) >> sigma(c) > sigma(a*). Thermal conductivity appears in the same order lambda(b) > lambda(c) > lambda(a*), So that b is the most conducting direction for both electricity and heat. The results are compared to the reported anisotropic electrical and thermal conductivity of the d-Al-Ni-Co decagonal quasicrystal.

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