Dielectric Materials for Wireless Communication

CHAPTER FOUR

ZIRCONIUM TIN TITANATE

4.1 INTRODUCTION

Zirconium titanate solid solutions have a variety of applications ranging from wireless communications [1–3] to effective acid–base bifunctional catalysts [4] and as high temperature pigments in chemical industry [5]. ZrO₂- and TiO₂-based oxides have also found interesting applications in composites [6] and sensors [7]. ZrTiO₄ thin films have potential technological applications in optics [8]. In 1941, Rath [9] reported ZrTiO₄ as a useful temperature-stable dielectric ceramic. In the 1950’s several laboratories investigated ZrO₂–TiO₂–SnO₂ solid solutions for applications where a low temperature coefficient of capacitance was required [10]. Wakino and co-workers [11–13] first reported Zr