Impacts of sintering temperature on the structure and physical properties of MnWO4 ceramics
Source abstract
Abstract
The effects of sintering temperature on the structure, morphology, vacancy defects, magnetic and dielectric characteristics of MnWO 4 ceramics synthesized by solid-state reaction were investigated. The results revealed that the increase of sintering temperature caused lattice deformation, but had no effect on the monoclinic lattice structure of all MnWO 4 samples. SEM analysis showed that all of the synthesized samples were relatively dense, and higher sintering temperature was conducive to grain growth. Positron annihilation lifetime spectroscopy revealed that the vacancy size and concentration were regulated by sintering temperature. The properties measurements showed that appropriate increase of sintering temperature increased the dielectric constant, magnetization, and expanded existing temperature range of AF2 phase for MnWO 4 system. The relationship between structure and performances was discussed in this paper.
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Research context
OpenAlex topics: Multiferroics and related materials · Microwave Dielectric Ceramics Synthesis · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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