The Effects of ZnO Additive on Sintering Behavior, Microstructural Evolution and Microwave Dielectric Properties of Li۲TiO۳ Ceramics

Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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JR_IJMSEI-16-1_001

تاریخ نمایه سازی: 1 اسفند 1401

Abstract:

The densification behavior, structural and microstructural evolution and microwave dielectric properties of Li۲TiO۳ + xZnO (x = ۰, ۰.۵, ۱, ۱.۵, ۲, ۳, and ۵ mol%) ceramics have been investigated using X-ray diffraction, Field Emission Scanning Electron Microscopy, Raman spectroscopy and microwave resonant measurement. The Maximum density of ۳.۳۳ g/cm۳ was obtained in Li۲TiO۳ + ۲ZnO ceramic at low sintering temperature of ۱۱۰۰˚C. SEM investigations revealed good close packing of grains when x = ۲ and preferential grain growth when x ≥ ۳. The maximum values of Q × f = ۳۱۸۰۰ GHz and εr = ۲۲.۵ were obtained in Li۲TiO۳ + ۳ZnO and Li۲TiO۳ + ۲ZnO compositions, respectively. The observed properties are attributed to the microstructural evolution and grain growth (first case) or high density of the obtained ceramic (second case).

Authors

T. Ebadzadeh

Materials and Energy Research Center

S. Ghaffari

Materials and Energy Research Center

M. Alizadeh

Materials and Energy Research Center

K. Asadian

Materials and Energy Research Center

Y. Ganjkhanlou

University of Pardubice

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