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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed25n0538.xml
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|a (DE-627)NLM161448755
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|a (NLM)16555772
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Ren, Kailiang
|e verfasserin
|4 aut
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|a Single crystal PMN-PT/epoxy 1-3 composite for energy-harvesting application
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 18.04.2006
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|a Date Revised 17.09.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a One key parameter in using electroactive materials to harvest electric energy from mechanical sources is the energy conversion efficiency. Recently, it was shown that, in the relaxor ferroelectric PMN-PT single crystals, a very high longitudinal electromechanical coupling factor (>90%) can be obtained. This paper investigates energy harvesting using 1-3 composites of PMN-PT single crystals in a soft epoxy matrix. It is shown that 1-3 composites enable the single crystals operating in the longitudinal mode to achieve high efficiency for energy harvesting, and the soft-polymer, matrix-supported single-crystal rods maintain high mechanical integrity under different external loads. For comparison, 1-3 composites with piezoceramic PZT also are investigated in energy-harvesting applications, and the results show that the high coupling factor of single crystal PMN-PT 1-3 composites leads to much higher electric energy output for similar mechanical energy input. The harvested energy density of 1-3 composite with single crystal (22.1 mW/cm3 under a stress of 40.4 MPa) is about twice of that harvested with PZT ceramic 1-3 composite (12 mW/cm3 under a stress of 39 MPa). At a higher stress level, the harvested-energy density of 1-3 PMN-PT single crystal composite can reach 96 mW/cm3
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|a Journal Article
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1 |
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|a Liu, Yiming
|e verfasserin
|4 aut
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1 |
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|a Geng, Xuecang
|e verfasserin
|4 aut
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1 |
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|a Hofmann, Heath F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Qiming M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1999
|g 53(2006), 3 vom: 11. März, Seite 631-8
|w (DE-627)NLM098181017
|x 0885-3010
|7 nnns
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| 773 |
1 |
8 |
|g volume:53
|g year:2006
|g number:3
|g day:11
|g month:03
|g pages:631-8
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