MgAl2O4 spinel powders from oxide one pot synthesis (OOPS) process for ceramic humidity sensors

Apirat Laobuthee; Sujitra Wongkasemjit; Enrico Traversa; Richard M. Laine

doi:10.1016/S0955-2219(99)00153-3

MgAl₂O₄ spinel powders from oxide one pot synthesis (OOPS) process for ceramic humidity sensors

Apirat Laobuthee, Sujitra Wongkasemjit^*, Enrico Traversa, Richard M. Laine

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

90 Scopus citations

Abstract

MgAl₂O₄ spinel powders can be prepared via the oxide one pot synthesis (OOPS) process. Porous ceramic oxide bodies can be produced with these powders and used as humidity-sensing materials. Pellets were characterized by SEM and their electrical properties were measured using impedance spectroscopy in the frequency range from 10^-2 to 10⁵ Hz at different relative humidity (RH) levels in the range 4-90%. The spinel pellets made of powder from the OOPS process exhibited good humidity sensitivity with a linear response of the logarithm of resistance with RH in the whole RH range tested.

Original language	English (US)
Pages (from-to)	91-97
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	20
Issue number	2
DOIs	https://doi.org/10.1016/S0955-2219(99)00153-3
State	Published - Feb 2000
Externally published	Yes

Keywords

Electrical properties
Humidity sensor
MgAlO
Powders-chemical preparation
Spinel

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/S0955-2219(99)00153-3

Cite this

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title = "MgAl2O4 spinel powders from oxide one pot synthesis (OOPS) process for ceramic humidity sensors",

abstract = "MgAl2O4 spinel powders can be prepared via the oxide one pot synthesis (OOPS) process. Porous ceramic oxide bodies can be produced with these powders and used as humidity-sensing materials. Pellets were characterized by SEM and their electrical properties were measured using impedance spectroscopy in the frequency range from 10-2 to 105 Hz at different relative humidity (RH) levels in the range 4-90%. The spinel pellets made of powder from the OOPS process exhibited good humidity sensitivity with a linear response of the logarithm of resistance with RH in the whole RH range tested.",

keywords = "Electrical properties, Humidity sensor, MgAlO, Powders-chemical preparation, Spinel",

author = "Apirat Laobuthee and Sujitra Wongkasemjit and Enrico Traversa and Laine, {Richard M.}",

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AU - Laobuthee, Apirat

AU - Wongkasemjit, Sujitra

AU - Traversa, Enrico

AU - Laine, Richard M.

PY - 2000/2

Y1 - 2000/2

N2 - MgAl2O4 spinel powders can be prepared via the oxide one pot synthesis (OOPS) process. Porous ceramic oxide bodies can be produced with these powders and used as humidity-sensing materials. Pellets were characterized by SEM and their electrical properties were measured using impedance spectroscopy in the frequency range from 10-2 to 105 Hz at different relative humidity (RH) levels in the range 4-90%. The spinel pellets made of powder from the OOPS process exhibited good humidity sensitivity with a linear response of the logarithm of resistance with RH in the whole RH range tested.

AB - MgAl2O4 spinel powders can be prepared via the oxide one pot synthesis (OOPS) process. Porous ceramic oxide bodies can be produced with these powders and used as humidity-sensing materials. Pellets were characterized by SEM and their electrical properties were measured using impedance spectroscopy in the frequency range from 10-2 to 105 Hz at different relative humidity (RH) levels in the range 4-90%. The spinel pellets made of powder from the OOPS process exhibited good humidity sensitivity with a linear response of the logarithm of resistance with RH in the whole RH range tested.

KW - Electrical properties

KW - Humidity sensor

KW - MgAlO

KW - Powders-chemical preparation

KW - Spinel

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