Výsledky vyhledávání - "Adhikary, Gobinda Das"

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Ultrahigh electrostrain in Pb-free piezoceramics: Effect of bending

Autor: Adhikary, Gobinda Das, Daniels, John, Giles, Luke, Ranjan, Rajeev

Recently several reports showing ultra-high electrostrain (> 1 %) have appeared in Pb-free piezoceramics. However, there is lack of clarity on the nature of the ultrahigh strain. Here, we demonsrate that the ultrahigh strain is a consequence of bendi

Externí odkaz: http://arxiv.org/abs/2312.15627

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Ultrahigh electrostrain > 1% in lead-free piezoceramics: A critical review

Autor: Adhikary, Gobinda Das, Singh, Digivijay Narayan, Tina, Getaw Abebe, Muleta, Gudeta Jafo, Ranjan, Rajeev

Recently, a series of reports showing ultra-high electrostrain (> 1 %) have appeared in several Pb-free piezoceramics. The ultrahigh electrostrain has been attributed exclusively to the defect dipoles created in these systems. We examine these claims

Externí odkaz: http://arxiv.org/abs/2306.03343

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Ultrahigh measured electrostrain in polycrystalline bulk piezoceramics: Role of mechanically relaxed grains

Autor: Adhikary, Gobinda Das, Ranjan, Rajeev

Recently we found that when conventional bulk polycrystalline piezoceramics discs (~ 10 mm diameter) are thinned down to thickness ~ 200 microns or below, the measured unipolar electrostrain (UES) values increased phenomenally (arXiv:2208.07134). Her

Externí odkaz: http://arxiv.org/abs/2209.00193

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Ultrahigh measured unipolar strain greater than 2 % in polycrystalline bulk piezoceramics: Effects of disc dimension

Autor: Adhikary, Gobinda Das, Ranjan, Rajeev

Bulk polycrystalline piezoelectric ceramics are extensively used in wide ranging applications as actuators, transducers, and sensors. For actuator applications, it is desirable that the piezoelectric ceramic gives as large electric field driven unipo

Externí odkaz: http://arxiv.org/abs/2208.07134

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