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

被引：1

作者：

Manan, Abdul ^{[1
]}

Ahmad, Arbab Safeer ^{[2
]}

Ullah, Atta ^{[3
]}

Wazir, Arshad Hussain ^{[4
]}

Shah, Abid A. ^{[5
]}

机构：

[1] Univ Sci & Technol Bannu, Dept Phys, Adv Mat Res Lab, Bannu 28100, Khyber Pakhtunk, Pakistan

[2] Islamia Coll Peshawar, Dept Phys, Peshawar 25120, Khyber Pakhtunk, Pakistan

[3] Islamia Coll Peshawar, Ctr Mat Sci, Peshawar, Khyber Pakhtunk, Pakistan

[4] Univ Sci & Technol Bannu, Dept Chem, Bannu 28100, Khyber Pakhtunk, Pakistan

[5] Int Islamic Univ, Dept Civil Engn, Islamabad, Pakistan

来源：

IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE | 2019年 / 43卷 / A5期

关键词：

Sintering; Microwaves; Dielectrics; X-ray diffraction; Density; SEM; MICROSTRUCTURE; PHASES;

D O I：

10.1007/s40995-019-00734-0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

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. epsilon(r) similar to 57.1, Q(u)f(o) similar to 13,250 GHz and tau(f) similar to 5.1 ppm/degrees C were obtained for Sr0.5Ca0.5La4Ti5O17 ceramic sintered at 1550 degrees C for 5 h in the present study.

引用

页码：2699 / 2703

页数：5

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