Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite

This paper presents a numerical homogenization analysis of a porous piezoelectric composite with a partially metalized pore surface. The metal layers can be added to the pore surfaces to improve the mechanical and electromechanical properties of ordinary porous piezocomposites. Physically, construct...

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Autores principales:	Andrey Nasedkin, Mohamed Elsayed Nassar
Formato:	article
Lenguaje:	EN
Publicado:	World Scientific Publishing 2021
Materias:	piezoelectricity piezoelectric composites piezoelectric ceramic-metal composite partial metalization effective properties finite element analysis Electricity QC501-721
Acceso en línea:	https://doaj.org/article/860ed5ad9ecc46a1814238e16200371f
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spelling	oai:doaj.org-article:860ed5ad9ecc46a1814238e16200371f2021-11-11T04:02:22ZNumerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite2010-135X2010-136810.1142/S2010135X21600092https://doaj.org/article/860ed5ad9ecc46a1814238e16200371f2021-10-01T00:00:00Zhttp://www.worldscientific.com/doi/epdf/10.1142/S2010135X21600092https://doaj.org/toc/2010-135Xhttps://doaj.org/toc/2010-1368This paper presents a numerical homogenization analysis of a porous piezoelectric composite with a partially metalized pore surface. The metal layers can be added to the pore surfaces to improve the mechanical and electromechanical properties of ordinary porous piezocomposites. Physically, constructing that composite with completely metalized pore surfaces is a challenging process, and imperfect metallization is more expected. Here, we investigate the effects of possible incomplete metallization of pore surfaces on the composite’s equivalent properties. We applied the effective moduli theory, which was developed for the piezoelectric medium based on the Hill–Mandel principle, and the finite element method to compute the effective moduli of the considered composites. Using specific algorithms and programs in the ANSYS APDL programming language, we constructed the representative unit cell element models and performed various computational experiments. Due to the presence of metal inclusion, we found that the dielectric and piezoelectric properties of the considered composites differ dramatically from the corresponding properties of the ordinary porous piezocomposites. The results of this work showed that piezocomposites with partially metallized pore surfaces can have a higher anisotropy, compared to the pure piezoceramic matrix, due to the defects in metal coatings.Andrey NasedkinMohamed Elsayed NassarWorld Scientific Publishingarticlepiezoelectricitypiezoelectric compositespiezoelectric ceramic-metal compositepartial metalizationeffective propertiesfinite element analysisElectricityQC501-721ENJournal of Advanced Dielectrics, Vol 11, Iss 5, Pp 2160009-1-2160009-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	piezoelectricity piezoelectric composites piezoelectric ceramic-metal composite partial metalization effective properties finite element analysis Electricity QC501-721
spellingShingle	piezoelectricity piezoelectric composites piezoelectric ceramic-metal composite partial metalization effective properties finite element analysis Electricity QC501-721 Andrey Nasedkin Mohamed Elsayed Nassar Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
description	This paper presents a numerical homogenization analysis of a porous piezoelectric composite with a partially metalized pore surface. The metal layers can be added to the pore surfaces to improve the mechanical and electromechanical properties of ordinary porous piezocomposites. Physically, constructing that composite with completely metalized pore surfaces is a challenging process, and imperfect metallization is more expected. Here, we investigate the effects of possible incomplete metallization of pore surfaces on the composite’s equivalent properties. We applied the effective moduli theory, which was developed for the piezoelectric medium based on the Hill–Mandel principle, and the finite element method to compute the effective moduli of the considered composites. Using specific algorithms and programs in the ANSYS APDL programming language, we constructed the representative unit cell element models and performed various computational experiments. Due to the presence of metal inclusion, we found that the dielectric and piezoelectric properties of the considered composites differ dramatically from the corresponding properties of the ordinary porous piezocomposites. The results of this work showed that piezocomposites with partially metallized pore surfaces can have a higher anisotropy, compared to the pure piezoceramic matrix, due to the defects in metal coatings.
format	article
author	Andrey Nasedkin Mohamed Elsayed Nassar
author_facet	Andrey Nasedkin Mohamed Elsayed Nassar
author_sort	Andrey Nasedkin
title	Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
title_short	Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
title_full	Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
title_fullStr	Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
title_full_unstemmed	Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
title_sort	numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite
publisher	World Scientific Publishing
publishDate	2021
url	https://doaj.org/article/860ed5ad9ecc46a1814238e16200371f
work_keys_str_mv	AT andreynasedkin numericalinvestigationoftheeffectsofpartialmetallizationattheporesurfaceontheeffectivepropertiesofaporouspiezoceramiccomposite AT mohamedelsayednassar numericalinvestigationoftheeffectsofpartialmetallizationattheporesurfaceontheeffectivepropertiesofaporouspiezoceramiccomposite
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Numerical investigation of the effects of partial metallization at the pore surface on the effective properties of a porous piezoceramic composite

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