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Synthesis and characterization of cost effective magnesium aluminate (MgAl 2 O 4 ) spinel for humidity sensor application
P K HALDAR, S SIL, PODDAR P K DAS,
Published in -
2010
Volume: 30
   
Issue: 3
Pages: 231 - 238
Abstract
Four sets of precursors of aluminium and magnesium compounds have been taken to prepare magnesium aluminate (MgAl 2 O 4 ) spinel powders. Among them the most cost effective route has been selectec/to synthesize spinel at significantly lower temperature than needed for solid state synthesis. The evolution of spinel has been evaluated and confirmed by XRD, IR, SEM (EDS), DTG, DSC studies. The pore size distributions in fired pellets were characterized to examine their suitability as humidity sensors. Finally the capacitance values at different humidity levels have been measured to ensure their commercial suitability.
About the journal
JournalIndustrial Ceramics
Publisher-
ISSN1121-7588
Open AccessNo