Abstract

The influence of thermally induced strain on quality factor of MgTiO3 ceramics at microwave frequencies via far-infrared reflectivity spectra and X-ray diffraction was investigated as a function of cooling rate. As the cooling rate increased, the crystallographic strain increased and Q·f value decreased, which were confirmed via X-ray diffraction and far-infrared reflectivity spectra. This result was attributed to the thermally induced strain and lattice anharmonicity.

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