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3.16 Examples of Ionic Conductors in Engineering Applications
Conducting ceramics are used in a variety of applications such as
SiC and MoSi2 as heating elements and electrodes ZnO and SiC as varistors for circuit protection YSZ, β -Alumina as electrolytes in fuel cells and batteries
Materials like YSZ in gas sensing applications
While heating elements and varistors utilize the electronic conduction properties of the ceramics, fuel cells and sensors typically utilize ionic conductivity characteristics.
Since details of each and every application is beyond the scope of this course, you are referred to the contents of the book titled Electroceramics, written by A.J. Moulson and J.M. Herbert and published by Wiley.
In the following sections, we will briefly discuss the major applications of conducting ceramics viz . three applications: varistors, solid oxide fuel cells and exhaust sensors in automobiles.
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