TITLE:
Humidity Sensitive Characteristics of Porous Li-Mg-Ti-O-F Ceramic Materials
AUTHORS:
Ahmad Kassas, Jérôme Bernard, Céline Lelièvre, David Houivet, Hassan Lakiss, Tayssir Hamieh
KEYWORDS:
Ceramic Humidity Sensor; Magnesium Titanate; Li2MgTiO4; Capacitance; Resistance
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.4 No.2,
February
26,
2013
ABSTRACT:
Ceramic porous MgTiO3 materials have been prepared by
classical solid-state route. The sintered pellets of MgTiO3 with
different LiF contents were characterized for humidity-sensing application. The
sintered disks of these mixtures were subjected to capacitance measurements at
20℃as function of the relative humidity from which revealed that the Mixture
MgTiO3 + 2% LiF (w/w) has the better characteristics. The disks were
subjected to DC resistance measurements as a function of relative humidity in
the range 15% - 95% RH. The selectivity of this material was discussed and compared
to commercial sensor results. The response and recovery characteristics were
assessed.