Title :
Study on effective piezoelectric coefficient for finite element analysis of multi-layer ceramic capacitor
Author :
Byung-Han Ko ; Dongjoon Kim ; No-Cheol Park ; Young-Pil Park
Author_Institution :
Dept. of Mech. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
Effective piezoelectric coefficient for finite element method of multi-layer ceramic capacitor was calculated in this study considering three factors; reduction ratio of the number of layer in finite element model, electrostriction, and applied DC voltage. Fundamental and second harmonic frequency of vibration response was measured when MLCC is operated under sinusoidal AC voltage and various DC voltage. Vibration measurements were separated into piezoelectric and electro-strictive vibration. Using finite element analysis, piezoelectric and electrostrictive coefficients were calculated and effective piezo-electric coefficients were also calculated.
Keywords :
ceramic capacitors; electrostriction; finite element analysis; piezoceramics; piezoelectric devices; piezoelectricity; vibrations; DC voltage; effective piezoelectric coefficient; electrostrictive vibration; finite element method; fundamental harmonic frequency; layer number reduction ratio; multilayer ceramic capacitor; piezoelectric vibration; second harmonic frequency; sinusoidal AC voltage; vibration measurements; Electric fields; Electrostriction; Finite element analysis; Harmonic analysis; Mathematical model; Vibrations; electrostriction; finite element analysis; multi-layer ceramic capacitor; piezoelectricity;
Conference_Titel :
Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop (ISAF/ISIF/PFM), 2015 Joint IEEE International Symposium on the
Conference_Location :
Singapore
DOI :
10.1109/ISAF.2015.7172669
