NDLI: The Role of Oxygen Vacancies on the Microstructure Development and on the Electrical Properties of SnO$

Content Provider	Springer Nature Link
Author	Parra, R. Aldao, C. M. Varela, J. A. Castro, M. S.
Copyright Year	2005
Abstract	Variations on the microstructure development and on the electrical properties of SnO$_{2}$-based varistors are discussed on the basis of the oxygen vacancies created or annihilated by the presence of different additives. Electron paramagnetic resonance (EPR) analysis of sintered samples evidenced a substantial increase in the paramagnetic oxygen vacancies concentration when Nb$_{2}$O$_{5}$ is added to the SnO$_{2}$ ⋅ Co$_{3}$O$_{4}$ system. On the other hand, the observed diminution in the concentration of such species after the addition of Fe$_{2}$O$_{3}$ indicates solid solution formation. The quantification of paramagnetic oxygen vacancies allowed to confirm the proposed substitutions taking place in the lattice during sintering. These findings are supported by scanning electron microscopy, by density measurements and by current density versus electric field curves. The characterization of secondary phases through EDS assisted SEM and TEM is also reported in this work.
Starting Page	149
Ending Page	156
Page Count	8
File Format	PDF
ISSN	13853449
Journal	Journal of Electroceramics
Volume Number	14
Issue Number	2
e-ISSN	15738663
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	defects electrical properties microstructure varistors EPR Polymer Sciences Optical and Electronic Materials Characterization and Evaluation Materials Ceramics, Glass, Composites, Natural Methods Crystallography
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Mechanics of Materials Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The Influence of Excess Precipitate on the Non-Ohmic Properties of SnO$_{2}$-Based Varistors

Varistors Based on Doped SnO$_{2}$

Effect of Zn$_{2}$SnO$_{4}$ on the sintering and electrical properties of SnO$_{2}$ ceramics

The Microstructure and Electrical Behavior of TiO$_{2}$ Varistors Processed by Magnetized Water

Bulk Grain Resistivity of ZnO-Based Varistors

The Influence of Bi2O3 and Sb2O3 on the Electrical Properties of ZnO-Based Varistors

Sintering and varistor behaviour of SnO$_{2}$-Zn$_{2}$SnO$_{4}$ composite ceramics

High Temperature Characterization of Electrical Barriers in ZnO Varistors*

Electrical Properties of Bismuth Titanate Based Ceramics with Secondary Phases

The Role of Oxygen Vacancies on the Microstructure Development and on the Electrical Properties of SnO$_{2}$-Based Varistors

Similar Documents

The Influence of Excess Precipitate on the Non-Ohmic Properties of SnO$_{2}$-Based Varistors

Varistors Based on Doped SnO$_{2}$

Effect of Zn$_{2}$SnO$_{4}$ on the sintering and electrical properties of SnO$_{2}$ ceramics

The Microstructure and Electrical Behavior of TiO$_{2}$ Varistors Processed by Magnetized Water

Bulk Grain Resistivity of ZnO-Based Varistors

The Influence of Bi2O3 and Sb2O3 on the Electrical Properties of ZnO-Based Varistors

Sintering and varistor behaviour of SnO$_{2}$-Zn$_{2}$SnO$_{4}$ composite ceramics

High Temperature Characterization of Electrical Barriers in ZnO Varistors*

Electrical Properties of Bismuth Titanate Based Ceramics with Secondary Phases

The Role of Oxygen Vacancies on the Microstructure Development and on the Electrical Properties of SnO$_{2}$-Based Varistors