Preparation and properties of the single crystalline AB2-type selenides and tellurides of niobium, tantalum, molybdenum and tungsten☆

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Abstract

The AB2-type selenides and tellurides of niobium, tantalum, molybdenum and tungsten have been prepared in single crystalline form by means of transport reactions. Lattice parameters were determined on the basis of single crystal patterns and are given for the eight compounds. Pertinent thermoelectric parameters, such as electrical resistivity, Seebeck coefficient and thermal conductivity were measured on compacted polycrystalline aggregates and are given together with the calculated “Figure of Merit”.

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☆

Parts of this Paper have been presented at the XVIIIth International Congress of Pure and Applied Chemistry at Montreal, Canada.

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