This is a description of the conception of a new material - an electrically conducting ceramic - and the practical work involved in its development and production. The solid-state physics and chemistry of the material are discussed in detail, along with the way in which properties are structure-dependent. The book goes on to review a wide range of practical applications for the new material, identifying factors which proved especially attractive or which prevented further developments. Including extensive data never previously published, and an extensive bibliography of both papers and patents, this title should enable practitioners and researchers to identify possible new application areas, as well as the strengths and weaknesses of the material.