Abstract
Crystals of Sc 2AlB 6 were grown using scandium oxide and elemental boron as starting materials in a self-component aluminum solution under an argon atmosphere. The growth conditions for obtaining single crystals of relatively large size were investigated. Sc 2AlB 6 single crystals were obtained in the form of prisms extending in the b-axis direction. The largest Sc 2AlB 6 crystals prepared had maximum dimensions of about 0.4×0.4×4.2 mm 3. The values of the Vickers microhardness and the electrical resistivity of Sc 2AlB 6 crystals are 12.7±0.8 GPa and 43±8 μΩ cm, respectively. The oxidation of Sc 2AlB 6 crystals starts at about 773°C, and the weight gain after TG determination is 12.9 mass% at 1200°C. The oxidation products of Sc 2AlB 6 crystals could not determined.
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