Influence of calcination conditions on phase formation and particle size of indium niobate powders synthesized by the solid-state reaction
Source abstract
Abstract
A wolframite-type phase of indium niobate, InNbO4, has been synthesized by a solid-state reaction via a rapid vibro-milling technique. The formation of the InNbO4 phase in the calcined powders has been investigated as a function of calcination conditions by TG-DTA and XRD techniques. Morphology, particle size and chemical composition have been determined via a combination of SEM and EDX techniques. Single-phase InNbO4 powders have been obtained successfully for calcination condition of 900 °C for 4 h or 950 °C for 2 h with heating/cooling rates of 30 °C/min. Higher temperatures and longer dwell times clearly favoured particle growth and the formation of large and hard agglomerates.
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Research context
OpenAlex topics: Microwave Dielectric Ceramics Synthesis · ZnO doping and properties · Electronic and Structural Properties of Oxides
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