Analysis of dielectric properties of zinc aluminum silicate based ceramic nanoparticles

被引:5
|
作者
Siragam, Srilali [1 ]
Dubey, R. S. [2 ]
Pappula, Lakshman [3 ]
机构
[1] Swarnandhra Coll Engn & Technol, Dept ECE, Narsapur 534275, Andhra Pradesh, India
[2] Swarnandhra Coll Engn & Technol, Dept Nanotechnol, Adv Res Lab Nanomat & Devices, West Godavari 534280, AP, India
[3] Koneru Laksmaiah Educ Fdn, Dept ECE, Guntur, Andhra Pradesh, India
关键词
Zinc Aluminum Silicate; Sol-gel Synthesis; Raman spectroscopy; Dielectric permittivity; Tangent loss; PATCH ANTENNA; PERFORMANCE; FABRICATION; ZNAL2O4;
D O I
10.1016/j.matpr.2020.11.790
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Zinc Aluminate (ZnAl2O4) is a class of spinel group which has unusual characteristics and recognised as the microwave dielectric ceramic. Zinc Aluminate based silicon (ZnAl2O4) compound nanomaterial is suitable for the microwave applications due to its low dielectric permittivity low tangent loss and the improved conductivity. In this work, we present the sol-gel synthesis of ZnAl2O4SiO2 ceramic nanoparticles and investigations using X-ray diffraction (XRD), Raman spectroscopy, and field-emission scanning electron microscopy (FESEM). XRD study revealed the amorphous nature of the sample. Raman measurement showed the vibration peaks of TiO2-Eg modes originated at 143 cm(-1) and 631 cm(-1) along with a peak at 391 cm(-1) ascribed to the B-1g mode of SiO2. We noticed almost constant dielectric permittivity at room temperature with the increased frequency however, an increased permittivity is observed with the increased frequency at increased temperature from 40 to 150 degrees C. In a similar fashion, we observed low dielectric loss in higher frequency regime at increased temperature from 40 to 150 degrees C. Furthermore, we explored the conductivity and impedance analysis of ZnAl2O4SiO2 ceramic nanoparticles in the view of their applicability as the microwave ceramic material. (C) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Advances in Materials Research - 2019.
引用
收藏
页码:2801 / 2808
页数:8
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