Matches in SemOpenAlex for { <https://semopenalex.org/work/W4313560090> ?p ?o ?g. }
- W4313560090 abstract "Abstract The effects of multiwall carbon nanotubes (MWCNTs) on the electrical, dielectric, and piezoelectric properties of the ferroelectric ceramic/castor‐oil polyurethane (PUR) composite films were evaluated. The three‐phase piezoelectric composites were produced by keeping PUR concentration constant while varying lead zirconate titanate (PZT) volume fractions between 10 and 50 vol.%, at two MWCNT concentrations: above and below percolation threshold. The dc electrical conductivity analysis revealed that small amounts of MWCNTs dispersed within PUR/PZT composite films can significantly improve electrical and piezoelectric properties due to their ability to act as conductive bridges between PZT particles in the samples. Using Jonscher's power law, it was possible to determine that the electrical conduction in ac regime occurs through spatial charge hopping between states located within the piezoelectric composite. Analyzing the piezoelectric properties through the d 33 coefficient, it was found that PUR‐MWCNT/PZT piezoelectric composite displayed higher d 33 values (20 pC/N) in comparison to the PUR/PZT two‐phase composite (9.5 pC/N) for all PZT loadings. According to these results, the dispersion of MWCNT nanoparticles influences the poling effectiveness of the PZT particles and increases the d 33 coefficient of three‐phase piezoelectric composites." @default.
- W4313560090 created "2023-01-06" @default.
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- W4313560090 date "2023-01-05" @default.
- W4313560090 modified "2023-10-12" @default.
- W4313560090 title "Dielectric, electric, and piezoelectric properties of three‐phase piezoelectric composite based on castor‐oil polyurethane, lead zirconate titanate particles and multiwall carbon nanotubes" @default.
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- W4313560090 doi "https://doi.org/10.1002/app.53572" @default.
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