The Effects of Dwell Sintering Time on the Densification and Microwave Dielectric Properties of Sr0.5Ca0.5La4Ti5O17 Ceramic

被引：0
作者：
Abdul Manan
Arbab Safeer Ahmad
Atta Ullah
Arshad Hussain Wazir
Abid A. Shah
机构：
[1] University of Science and Technology Bannu,Laboratory for Research in Advanced Materials, Department of Physics
[2] Islamia College Peshawar,Department of Physics
[3] Islamia College Peshawar,Center for Materials Science
[4] University of Science and Technology Bannu,Department of Chemistry
[5] International Islamic University,Department of Civil Engineering
来源：
Iranian Journal of Science and Technology, Transactions A: Science | 2019年 / 43卷
关键词：
Sintering; Microwaves; Dielectrics; X-ray diffraction; Density; SEM;
D O I：
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中图分类号：
学科分类号：
摘要：
The effects of dwell sintering time on the densification and microwave dielectric properties of Sr0.5Ca0.5La4Ti5O17 ceramic were investigated. The ceramic was fabricated using the conventional solid-state mixed oxide route using high-purity raw materials which was characterized using X-ray diffraction, scanning electron microscopy and vector network analyzer for phase, microstructure and microwave dielectric properties analysis, respectively. The XRD findings showed single-phase ceramics for all sintered samples. The microstructure was observed to be comprised of compacted elongated plate like grains. The grain size was observed to increase with increase in sintering time from 2 to 7 h. Abnormal grain growth is observed for sintering time > 5 h. Thus, the dwell sintering times effected the density, and hence the microwave dielectric properties of Sr0.5Ca0.5La4Ti5O17 ceramic. εr ~ 57.1, Qufo ~ 13,250 GHz and τf ~ 5.1 ppm/°C were obtained for Sr0.5Ca0.5La4Ti5O17 ceramic sintered at 1550 °C for 5 h in the present study.
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页码：2699 / 2703
页数：4
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