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An Introduction to Sol-Gel Processing for Aerogels Read chapter Read first chapter

2017 | OriginalPaper | Chapter

2. Sol-Gel Materials for Varistor Devices

Authors : S. Anas, K. V. Mahesh, M. Jeen Maria, S. Ananthakumar

Published in: Sol-Gel Materials for Energy, Environment and Electronic Applications

Publisher: Springer International Publishing

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Abstract

The present chapter deals with a systematic report on ‘sol-gel ZnO varistors’, an area which needs to be much explored in terms of the applications it holds. The book chapter starts with a brief introduction on varistors. Subsequently, a detailed description on the so far adopted conventional preparation methods and chemical synthesis strategies for varistors are presented. Among the many chemical methods, the advantages of employing a sol-gel method for varistor technology are discussed in detail in later sections. A detailed literature survey on the preparation, properties and advantages of sol-gel derived ZnO varistors is provided. The main focus of the study is to highlight the importance of nanoinclusions for high-performance varistors in terms of controlled grain size, improved grain boundary area and homogeneous dopant distribution at the grain boundaries. The chapter concludes with a discussion on the recent research interests on the sol-gel ceramic–polymer varistors and studies on varistor-epoxy, ZnO-PANI, ZnO-PANI-PVA, GaAs-PANI-PE, Si–Polymer varistor composites.

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Metadata
Title
Sol-Gel Materials for Varistor Devices
Authors
S. Anas
K. V. Mahesh
M. Jeen Maria
S. Ananthakumar
Copyright Year
2017
Book
Sol-Gel Materials for Energy, Environment and Electronic Applications

Print ISBN: 978-3-319-50142-0

Electronic ISBN: 978-3-319-50144-4

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-50144-4_2

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