Electrorheological properties of bati03 suspensions

David V. Miller; Clive A. Randall; Amar S. Bhalla; Robert E. Hewnham; James H. Adair

doi:10.1080/07315179308204251

Electrorheological properties of bati03 suspensions

David V. Miller, Clive A. Randall, Amar S. Bhalla, Robert E. Hewnham, James H. Adair

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13 Scopus citations

Abstract

Electrorheological (ER) fluids based on a silicone oil matrix with a high dielectric constant particulate component, BaTi03, were evaluated. Particle size effects were examined with a commercial BaTi03 (0.35μm in size) and a hydrothermally prepared BaTi03 powder with an average particle size of 0.07μm. The commercial powder exhibited an ER response to DC fields, but above a critical field strength rheological properties dropped off drastically. The relative magnitude of yield stresses, at field levels below the critical field strength, are comparable with current literature values. Hydrothermally prepared BaTiCO3 powder exhibited minimal ER response to applied DC fields.

Original language	English (US)
Pages (from-to)	141-151
Number of pages	11
Journal	Ferroelectrics Letters Section
Volume	15
Issue number	5-6
DOIs	https://doi.org/10.1080/07315179308204251
State	Published - Jun 1 1993

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/07315179308204251

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abstract = "Electrorheological (ER) fluids based on a silicone oil matrix with a high dielectric constant particulate component, BaTi03, were evaluated. Particle size effects were examined with a commercial BaTi03 (0.35μm in size) and a hydrothermally prepared BaTi03 powder with an average particle size of 0.07μm. The commercial powder exhibited an ER response to DC fields, but above a critical field strength rheological properties dropped off drastically. The relative magnitude of yield stresses, at field levels below the critical field strength, are comparable with current literature values. Hydrothermally prepared BaTiCO3 powder exhibited minimal ER response to applied DC fields.",

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AU - Miller, David V.

AU - Randall, Clive A.

AU - Bhalla, Amar S.

AU - Hewnham, Robert E.

AU - Adair, James H.

PY - 1993/6/1

Y1 - 1993/6/1

N2 - Electrorheological (ER) fluids based on a silicone oil matrix with a high dielectric constant particulate component, BaTi03, were evaluated. Particle size effects were examined with a commercial BaTi03 (0.35μm in size) and a hydrothermally prepared BaTi03 powder with an average particle size of 0.07μm. The commercial powder exhibited an ER response to DC fields, but above a critical field strength rheological properties dropped off drastically. The relative magnitude of yield stresses, at field levels below the critical field strength, are comparable with current literature values. Hydrothermally prepared BaTiCO3 powder exhibited minimal ER response to applied DC fields.

AB - Electrorheological (ER) fluids based on a silicone oil matrix with a high dielectric constant particulate component, BaTi03, were evaluated. Particle size effects were examined with a commercial BaTi03 (0.35μm in size) and a hydrothermally prepared BaTi03 powder with an average particle size of 0.07μm. The commercial powder exhibited an ER response to DC fields, but above a critical field strength rheological properties dropped off drastically. The relative magnitude of yield stresses, at field levels below the critical field strength, are comparable with current literature values. Hydrothermally prepared BaTiCO3 powder exhibited minimal ER response to applied DC fields.

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ER -

Electrorheological properties of bati03 suspensions

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