Electrical conductivity of a bulk metallic glass composite

Abstract

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Structural and mechanical properties of Ni60Nb40 amorphous alloy particle reinforced Al-based composites produced by microwave-assisted rapid sintering

“…The states overlap the conduction band at the Fermi-energy level and would provide large number of levels, so that the s-electron would get scattered and be lost from the current thus increasing the electrical resistivity [30]. Unlike crystalline metals, the electrical resistivity of amorphous metals is inherently high (equivalent to that of liquid metals) owing to the intrinsic disordered structure [31]. Therefore, the addition of amorphous reinforcements with transition metal elements increases the electrical resistivity of the composites significantly.…”

Metallic glass matrix composites

“…For example, it has been demonstrated that copper-fiber-reinforced MGMCs are promising candidates for the applications where a direction-dependent conductivity is required to enhance the efficiency in the heat flow [64]. Wang et al have found that the short irregular brass fibers can dramatically reduce the resistivity of the Ni-based BMG, leading to an improved material with both the high strength and good conductivity for functional applications [67].…”

Procedure for measuring electrical resistivity of anisotropic materials: A revision of the Montgomery method

“…(23) and for q 2 based on Eqs. (24) and (25). If the film is tetragonal with the c axis perpendicular to the substrate surface, or if the film is orthorhombic, it is necessary to measure the resistances of another face of the sample.…”