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Nanocomposite Material for a Bulk Energy-Intensive Resistor

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Refractories and Industrial Ceramics Aims and scope

A three-fraction composition of the ceramic forming mass is developed for preparing energy-intensive resistors based on electrocorundum powders with grain size F 120, F 400 and a finely milled electrically conductive fraction from a colloid-graphite preparation of the S-1 brand. In order to bind grains when forming a workpiece an aluminum chromophosphate binder (ACPB) is used, which makes it possible to prepare unfired shrinkage-free objects. Components of the molding mass are mixed and pressed into semi-finished products. For comparison the structure and composition of a resistor of the HVR International company is analyzed. The effect of compaction pressure of the compositions developed on the amount of electrical resistance and the density of the material is studied. Abroad range of electrical resistance is achieved by changing the content of colloidal nano-size graphite. Based upon colloidal graphite and ACPB masses are obtained with reduced contact resistance.

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Correspondence to A. V. Belyakov.

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Translated from Novye Ogneupory, No. 1, pp. 31 – 37, January, 2023

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Fedotov, A.V., Belyakov, A.V. Nanocomposite Material for a Bulk Energy-Intensive Resistor. Refract Ind Ceram 64, 31–37 (2023). https://doi.org/10.1007/s11148-023-00800-6

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  • DOI: https://doi.org/10.1007/s11148-023-00800-6

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