Structural, microstructure and electric properties of SnO2-Sb2O5-Cr2O3 varistor ceramics doped with Co2SnO4 spinet phase previously synthesized

被引：13
|
作者：
Hernandez, M. B. [1 ]
Garcia-Villareal, S. [2 ]
Cienfuegos-Pelaes, R. F. [1 ]
Gomez-Rodriguez, C. [3 ]
Aguilar-Martinez, J. A. [1 ]
机构：
[1] Univ Autonoma Nuevo Leon, Fac Ingn Mecan & Elect, CIIIA, Carretera Salinas Victoria Km 2-3, Apodaca 66600, NL, Mexico
[2] Univ Autonoma Coahuila, Fac Met, Carr 57,Km 4-5, Monclova 25710, Coah, Mexico
[3] Univ Politecn Apodaca UPAP, Av Politecn Cruz Con Carretera Miguel Aleman, Apodaca 66600, NL, Mexico
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 699卷
关键词：
X-ray diffraction; Electronic properties; Ceramics; Sintering; SNO2; VARISTORS; SINTERING TEMPERATURE; ZNO; NANOMATERIALS; MORPHOLOGY; BEHAVIOR; CR2O3;
D O I：
10.1016/j.jallcom.2016.12.419
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The present investigation reports the variations of the microstructure, structure and electrical properties due to a change in the Co2SnO4 content of SnO2-Cr2O3-Sb2O5 ceramic samples. The ceramic system was (99.9-X) % SnO2- X% Co2SnO4- 0.05%Sb2O5-0.05% Cr2O3, where X = 0, 0.5, 1, 2 and 4 mol %. In order to obtain a comprehensive knowledge of the samples, characterization techniques such as Thermal Analysis, X-ray Powder Diffraction (XRD) with Rietveld refinement, and Scanning Electron Microscopy where carried out. On the subject of the electrical properties of the studied system, the samples showed a tendency to decrease values of breakdown electric field (from 6219.30 to 1155.72 Vcm(-1)) as the spinet content increased. Authors suggest the ceramic system may found application as medium-voltage varistors. (C) 2017 Elsevier B.V. All rights reserved.
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收藏
页码：738 / 744
页数：7
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