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Effect of kerf filler on the electromechanical coupling coefficient of 1–3 piezoelectric composites

A unified formula has been derived to quantitatively describe the electromechanical coupling factor for the thickness mode of 1–3 piezoelectric composites with rectangular rod. The effect of different kerf filler on the electromechanical coupling factor is analyzed by varying the aspect ratio of pie... Full description

Contained in: Journal of Alloys and Compounds Vol. 651 (2015), p. 643-647
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Links: Additional Link (dx.doi.org)
Additional Keywords: SCHNEIDSPALT
STEIFIGKEIT
VERBUNDWERKSTOFF
VOLUMENFRAKTION
DOI: 10.1016/j.jallcom.2015.08.122
Notes: Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt eG
Copyright: (C) Alle Rechte beim Herausgeber
Physical Description: 5 Seiten, 27 Quellen
ID (e.g. DOI, URN): 10.1016/j.jallcom.2015.08.122
PPN (Catalogue-ID): WTI055683835
Note: WTI TEMA DB
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520 |a A unified formula has been derived to quantitatively describe the electromechanical coupling factor for the thickness mode of 1–3 piezoelectric composites with rectangular rod. The effect of different kerf filler on the electromechanical coupling factor is analyzed by varying the aspect ratio of piezoelectric rod and the elastic stiffness of kerf filler, respectively. The results show that the coupling factor decreases with the elastic stiffness increase of the kerf filler. In addition, we have also compared the current rectangular rod model with previous cylinder model for 1–3 piezoelectric composites. It was found that the circular cross-section piezoelectric rod tends to provide higher electromechanical coupling factor than the square rod when the aspect ratio is between 0.3 and 4 in the 1–3 composites with the same volume fraction. [Copyright Elsevier B.V. Reproduced with permission.] 
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