Produção Nacional
Revisado por pares
Identification of Humidity Sensing Mechanism in MgAl2O4 by Impedance Spectroscopy as Function of Relative Humidity
2018; Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímer; Volume: 21; Issue: 4 Linguagem: Inglês
10.1590/1980-5373-mr-2017-0729
ISSN1980-5373
AutoresGuilherme Baltar Crochemore, Amadeu Rodrigues Pereira Ito, Celso Antonio Goulart, Dulcina P. F. de Souza,
Tópico(s)Advanced Chemical Sensor Technologies
ResumoMgAl2O4 is a humidity sensing material, which high melting point requires high sintering temperatures. In this work, manganese oxide was used as a sintering aid to obtain MgAl2O4 samples sintered at 1350°C with a microstructure suitable for humidity sensing. Impedance spectroscopy analyses were performed at several levels of relative humidity, indicating that this correlation is possible within the range of 10-80% of relative humidity.
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