| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Mcbride, John Willaim
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2019Transient contact opening forces in a MEMS switch using Au/MWCNT compositecitations
- 2019Arc modeling to predict arc extinction in low-voltage switching devicescitations
- 2018In-situ contact surface characterization in a MEMS ohmic switch under low current switchingcitations
- 2015Characterisation of nanographite for MEMS resonators
- 2013A review of micro-contact physics for microelectromechanical systems (MEMS) metal contact switchescitations
- 2012The effects of porosity, electrode and barrier materials on the conductivity of piezoelectric ceramics in high humidity and dc electric fieldcitations
- 2009The effect of relative humidity, temperature and electrical field on leakage currents in piezo-ceramic actuators under dc biascitations
- 2009Micro-computer tomography-An aid in the investigation of structural changes in lead zirconate titanate ceramics after temperature-humidity bias testingcitations
- 2009Study of temperature change and vibration induced fretting on intrinsically conducting polymer contact systemscitations
- 2006The contact resistance force relationship of an intrinsically conducting polymer interfacecitations
- 2006The influence of thermal cycling and compressive force on the resistance of poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonic acid)-coated surfacescitations
- 2005Intermittency events in bio-compatible electrical contactscitations
- 2005The fretting characteristics of intrinsically conducting polymer contacts
- 2005Displacement measurements at the connector contact interface employing a novel thick film sensorcitations
- 2004The contact resistance force relationship of an intrinsically conducting polymer interfacecitations
- 2004Minimising fretting slip in connector terminals using conducting polymer contacts
- 2002Fretting in connector terminals using conducting polymer contacts
- 2002Fretting corrosion studies of an extrinsic conducting polymer and tin Interfacecitations
- 2002Fretting corrosion and the reliability of multicontact connector terminalscitations
- 2000Degradation of road tested automotive connectorscitations
Places of action
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article
The effects of porosity, electrode and barrier materials on the conductivity of piezoelectric ceramics in high humidity and dc electric field
Abstract
Prolonged operation of piezoelectric ceramic devices under high dc electric fields promotes leakage currents between the electrodes. This paper investigates the effects of ceramic porosity, edge conduction and electrode materials and geometry in the development of low resistance conduction paths through the ceramic. Localized changes in the ceramic structure and corresponding microscopic breakdown sites are shown to be associated with leakage currents and breakdown processes resulting from prolonged operation in harsh environments. The role of barrier coatings in mitigating the effects of humidity is studied, and results are presented on improved performance using composite diamond-like carbon/polymer coatings. In contrast to the changes in the electrical properties of the ceramic, the measurements of the piezoelectric properties showed no significant effect of humidity.