Preparation and electrorheological properties of triethanolamine-modified TiO{sub 2}

The high molecular dielectric dipole moment of doping material is promising to improve the electrorholegical (ER) effect. It is found that triethanolamine (the molecular dipole moment of triethanolamine is 3.48)-modified TiO{sub 2} has good ER properties. Under 5 kV/mm external electric field, the y...

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Bibliographic Details
Published inJournal of solid state chemistry Vol. 179; no. 5
Main Authors Cao, J.G., Shen, M., Zhou, L.W.
Format Journal Article
LanguageEnglish
Published United States 15.05.2006
Subjects
CURRENT DENSITY
DIELECTRIC MATERIALS
DIPOLE MOMENTS
ELECTRIC CURRENTS
ELECTRIC FIELDS
FLUIDS
MATERIALS SCIENCE
SEDIMENTATION
SOL-GEL PROCESS
TITANIUM OXIDES
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Summary:The high molecular dielectric dipole moment of doping material is promising to improve the electrorholegical (ER) effect. It is found that triethanolamine (the molecular dipole moment of triethanolamine is 3.48)-modified TiO{sub 2} has good ER properties. Under 5 kV/mm external electric field, the yield stress is 32.6 kPa, which is about 50 times higher than that of pure TiO{sub 2} and the leaking electric current density is lower than 16 {mu}A/cm{sup 2}. The sedimentation rate is about 98% in 20 days.
ISSN:0022-4596
1095-726X
DOI:10.1016/j.jssc.2006.01.078