Electronic ceramics have been widely investigated because of their useful properties for
various applications. These ceramics exhibit excellent properties such as dielectric, piezoelectric,
semiconducting, pyroelectric, electro-optic, magnetic, and superconducting properties. They are usually
produced via the conventional mixed oxide route. Raw materials are mixed before calcining. The
calcined powder is then pressed into green pellets. The green pellets are sintered for densification and
grain growth. The reaction-sintering process for preparing electronic ceramics is simple and effective.
Calcination of the conventional mixed oxide route is conducted in the heating up period. Therefore, the calcination and
the following pulverization are bypassed, saving both time and expense. This review paper examines reports about electronic
ceramics prepared via the reaction-sintering process and recent patents also.