Sintesis de ceramicos de ZnO dopados con praseodimio y cobalto

Materials Research

Ana Milena Cruz¹  Humar Avila¹  Jorge Enrique Rodríguez-páez¹  Mirian Susana Castro² 

[1] ,Universidad del Cauca Calle Departamento de Física Grupo de Ciencia y Teconologia de MaterialesPopayán Cauca ,Colombia

关键词: zinc oxide;    earth rares;    powder synthesis;    varistor;   

DOI  :  10.1590/S1516-14392003000200016

来源: SciELO

【 摘 要 】

Zinc oxide, ZnO, is a very interesting compound in science and electronic ceramics technology. ZnO ceramics containing some additives were reported to show varistor action with excellent nonlinearity in current - voltage characteristics. However, investigations were restricted to the ZnO - Bi2O3 ceramic system. Other type of varistor, which contains praseodymium oxide, also present nonlinear behaviour. In this work, results obtained in the synthesis Zn-Pr-Co powder are shown. In order to determine and control the several stages of the chemical method, potentiometric titration was used. The solid phase obtained was pressed and sintered.

【 授权许可】

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