Elaboration and characterization of PMN–xPT solid ceramics used in a numerical simulation of a piezoelectric transducer for a loudspeaker application

Yessari, Madiha; Lifi, Houda; Hajjaji, Abdelowahed; Rguiti, Mohamed; Benjellοun, Mohammed; Arbaoui, A.

doi:10.1007/s11082-016-0557-3

Cited by 9 publications

(1 citation statement)

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“…Deformation can be applied on the piezoelectric materials using ambient mechanical energy such as undesirable vibrations or human's permanent movements and then converted into electric power supply for wireless autonomous devices [4,[9][10][11][12][13][14]. Piezoelectric energy harvesters are used because of their fast response when subjected to a mechanical charge and their facility to be used in portable applications [5,[15][16][17][18]. Lead magnesium niobate-lead titanate ((1-x)PbMg 1/3 Nb 2/3 O 3 -xPbTiO 3 ), shortly known as (1-x)PMN-xPT, are piezoelectric materials which have aroused the interest of several researchers, due to their excellent properties such as great dielectric response and high electromechanical coupling coefficients (k) is greater than 90% near to the morphotropic phase boundary (MPB) [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Sensors and energy harvesters based on (1–x)PMN-xPT piezoelectric ceramics

Lifi

Ennawaoui

Hajjaji

et al. 2019

Eur. Phys. J. Appl. Phys.

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With recent advancements in energy conversion mechanisms, piezoelectric ceramics (1–x)PbMg1/3 Nb2/3Ο3-xPbTiΟ3 (1–x)PMN-xPT have demonstrated their abilities for converting mechanical vibrations into electricity. Three (1–x)PMN-xPT compositions were used in the present work with (x = 0.25, 0.31 and 0.33). The purpose of this paper is to investigate their piezoelectric performance as generators for energy harvesting applications. The energy harvester is numerically analyzed in this work. It consists of a piezoelectric bimorph clamped at one end to vibrating machinery, and a proof mass mounted on its other end. The energy harvester is also analyzed and experimental measurements of the harvested power are compared to the simulation results. A good agreement was observed between the experimental and the simulations results. According the application to exploit the vibrations of a hot air extractor, the results show that the harvested energy density of solid ceramics (1–x)PMN-xPT is 0.043 W/m2.

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