2009
DOI: 10.1016/j.sna.2009.01.017
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The effect of relative humidity, temperature and electrical field on leakage currents in piezo-ceramic actuators under dc bias

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Cited by 49 publications
(46 citation statements)
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“…Samples were removed and examined after the resistance of the ceramic had dropped to below 1 MΩ. the progression of the changes in electrical properties is described in more detail elsewhere [10].…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…Samples were removed and examined after the resistance of the ceramic had dropped to below 1 MΩ. the progression of the changes in electrical properties is described in more detail elsewhere [10].…”
Section: Methodsmentioning
confidence: 99%
“…The change in ceramic resistance of PZT actuators under temperature-humidity bias testing has been described previously [10]. However the assessment of any internal structural change has not been investigated and is extremely difficult if not impossible to perform using conventional light and electron microscopy procedures without destroying the features under investigation.…”
Section: Methodsmentioning
confidence: 99%
“…A resistance decrease in bulk or thick film Pb-containing perovskites under high field stress is also reported, but mostly refers to experiments under high humidity conditions below 100°C [58][59][60][61][62][63][64][65][66][67]. There, migration of silver (or other) cations originating from the electrodes is often discussed as the major source of the degradation.…”
Section: Introductionmentioning
confidence: 99%
“…[4][5][6] Second, in devices fabricated from "bulk" piezoelectrics that are processed under ambient atmosphere, humidity can increase the leakage current, inducing an insulator-semiconductor transition. [7][8][9][10][11] To investigate the interplay between hydrogen-related defects and defects resulting from aliovalent acceptor doping, CuO-doped PbTiO 3 has been investigated. As a sensitive spectroscopic tool, electron paramagnetic resonance (EPR) has already been providing detailed information, 12,13 in particular, on the defect structure at the first coordination sphere.…”
mentioning
confidence: 99%