Electric field induced solidification

We present a description of electrorheological fluids in terms of an electric field induced phase transition at a critical electric field Ec. Theoretically, we find that as the applied field exceeds Ec, the osmotic pressure becomes negative and the liquid experiences a phase transition to a solid ph...

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Bibliographic Details
Published in:Applied physics letters 1989-10, Vol.55 (18), p.1844-1846
Main Authors: TAO, R, WOESTMAN, J. T, JAGGI, N. K
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Equations of state, phase equilibria, and phase transitions
Exact sciences and technology
General studies of phase transitions
Physics
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Summary:We present a description of electrorheological fluids in terms of an electric field induced phase transition at a critical electric field Ec. Theoretically, we find that as the applied field exceeds Ec, the osmotic pressure becomes negative and the liquid experiences a phase transition to a solid phase. Ec is experimentally determined as a function of concentration in one system. Our theoretically predicted phase diagram is in reasonable agreement with our experimental data.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.102183