Jornal de Metalurgia do Pó e Mineração

Abstrato

From the Mining to the Obtaining of Ferroelectric Ceramics

Rodríguez MDD*

Enjoy and learn by looking for the ancient techniques of working the pottery from the clay, led to the obtaining of more convenient materials and better mineral extractive processes. This is what has allowed the development of the great variety of domestic ceramic materials and the emergence of electro technical ceramic. The piezoelectric and ferroelectric ceramics depend on the origin of their raw materials, what has been the process of obtaining them? As well as on the variations of the ceramic process used. Five examples are presented of how the reagents, their purity, granulometry and present phases can modify the properties and characteristics of ferroelectric ceramics. The work will make a panoramic visualization of the materials and their origins, arriving at the obtaining of ferroelectric ceramics and the influence of the raw material (obtaining process) and the properties of the desired product.