Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1474367 | Journal of the European Ceramic Society | 2011 | 10 Pages |
Abstract
This paper presents a study of the precipitation of ZnO and CuO crystals during the sintering of Cu-doped Ni–Zn ferrites. The nature of the Zn- and Cu-containing crystal precipitates was determined by scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) analysis, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The influence of the dry relative density of the body and the cooling rate on the occurring precipitates was also studied. Two consecutive chemical reactions are put forward, which explain the bulk precipitation of the zinc and copper oxides in the specimen during sintering, and their re-dissolution during cooling.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Antonio Barba, Carolina Clausell, Juan Carlos Jarque, María Monzó,