Microstructural and nonohmic properties of ZnO.Pr6O11 CoO polycrystalline system

The microstructure and electrical properties of varistors composed of (95-x) ZnO + x Pr6O11 + 5 CoO (ZPC), (x = 0.1, 0.5 and 1.0) and sintered at 1300 and 1350 °C, were investigated. According to X-ray diffraction, several phases (ZnO, Pr2O3 and Pr2CoO4) are present when x = 1.0. Using Scanning Elec...

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Bibliographic Details
Main Authors: Miguel Angel Ramírez, José Francisco Fernández, José de Frutos, Paulo Roberto Bueno, Elson Longo, José Arana Varela
Format: Article
Language:English
Published: Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) 2010-03-01
Series:Materials Research
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100008