Identification of Humidity Sensing Mechanism in MgAl2O4 by Impedance Spectroscopy as Function of Relative Humidity

AUTOR(ES)

Crochemore, Guilherme Baltar, Ito, Amadeu Rodrigues Pereira, Goulart, Celso Antonio, Souza, Dulcina Pinatti Ferreira de

FONTE

Mat. Res.

DATA DE PUBLICAÇÃO

21/05/2018

RESUMO

MgAl2O4 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.

Documentos Relacionados

• Síntese do espinélio MgAl2O4 via "sol-gel"
• Innovative Coating Method of MgAl2O4 or ZnAl2O4 on α-Al2O3 Spheric Nuclei
• Thermal stability and microstructure characterization of MgAl2O4 nanoparticles synthesized by reverse microemulsion method
• Synthesis of MgAl2O4 by Gelatin Method: Effect of Temperature and Time of Calcination in Crystalline Structure
• Effect of Urea Excess on the Properties of the MgAl2O4 Obtained by Microwave-Assisted Combustion