Microwave Synthesis of Lithium, Copper, Cobalt, and Nickel Ferrites

作者: A. S. Vanetsev , V. K. Ivanov , Yu. D. Tret'yakov

DOI: 10.1023/A:1021775626732

关键词:

摘要: One of the most important problems modernmaterials science is development new methodsfor preparing functional materials, which allow one todecrease power inputs and synthesis time [1]. Micro-wave treatment a promising method that satisfiesthese demands.Microwave heating has some advantages over com-mon methods for solids liquids. Amongthese advantages, noteworthy high rate lowthermal lag, absence contact between aheated material heater, uniformity bulkheating, possibility to selectively heat componentsin mixtures, efficiency [2].The absorption microwave radiation by sub-stances occurs through two basic mechanisms associ-ated with rotation dipoles ionic currents. There-fore, substances permittivity or ionicconductivity absorb microwaves efficiently. Mate-rials low dielectric loss factor insulators canbe heated after adding compounds micro-waves, example, magnetite, silicon carbide, orgraphite [2]. In salt systems, water crystallizationmay act as such an “additive.”Over past few years, hasbeen used complex oxides ( CuFe

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