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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermal analysis and electrical characterization of ceramic thermistors based on manganese, nickel and cobalt oxides

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Author(s):
J. M. Ferreira Jr. [1] ; O. C. Cordeiro [2] ; Y. V. França [3] ; E. N. S. Muccillo [4] ; J. R. Matos [5] ; R. Muccillo [6]
Total Authors: 6
Affiliation:
[1] Instituto de Pesquisas Energéticas e Nucleares. Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos
[2] Instituto de Pesquisas Energéticas e Nucleares. Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos
[3] Instituto de Pesquisas Energéticas e Nucleares. Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos
[4] Instituto de Pesquisas Energéticas e Nucleares. Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos
[5] Universidade de S. Paulo. Instituto de Química. Departamento de Química Fundamental
[6] Instituto de Pesquisas Energéticas e Nucleares. Centro Multidisciplinar para o Desenvolvimento de Materiais Cerâmicos
Total Affiliations: 6
Document type: Journal article
Source: Cerâmica; v. 53, n. 328, p. 448-454, 2007-12-00.
Abstract

Ceramic thermistors based on manganese, nickel and cobalt oxides were prepared by mixing these oxides followed by pressing and sintering at 1250 °C. The oxides were characterized by X-ray diffraction and scanning electron microscopy. The thermistor behavior was studied by two-probe dc electrical resistivity measurements in the room temperature-220 °C range. The main results show the possibility of preparing thermistors in a wide range of electrical response by suitable choice of the relative concentrations of the precursor oxides. (AU)

FAPESP's process: 05/53241-9 - Study of intergranular phenomena in ceramic materials
Grantee:Reginaldo Muccillo
Support Opportunities: Research Projects - Thematic Grants