Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures
Honeycomb-based, modular composites with a relative density of 0.3948 and a slenderness ratio <i>L<sub>ges</sub>/t</i> of 6.48 were fabricated on PZT building blocks connected with a PZT-filled phenyl silicone resin. The macro- and micro-structure, phase composition, and the...
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MDPI AG
2022-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/22/7893 |
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| author | Franziska Eichhorn Julia Bytomski Markus Gerauer Ken-ichi Kakimoto Tobias Fey |
| author_facet | Franziska Eichhorn Julia Bytomski Markus Gerauer Ken-ichi Kakimoto Tobias Fey |
| author_sort | Franziska Eichhorn |
| collection | DOAJ |
| description | Honeycomb-based, modular composites with a relative density of 0.3948 and a slenderness ratio <i>L<sub>ges</sub>/t</i> of 6.48 were fabricated on PZT building blocks connected with a PZT-filled phenyl silicone resin. The macro- and micro-structure, phase composition, and the interface between the two materials were analyzed by SEM and image analysis techniques. The mechanical <i>in-plane</i> strain response was determined with uniaxial compression tests and the <i>transversal</i> piezoelectric strain response was determined by applying an electric field. These deformations were analyzed by a 2D digital image correlation analysis to calculate the mechanical strain amplification of monolithic and composite PZT lattice structures. Compared to bulk PZT, the piezoelectric strain amplification in the Y-direction |<i>a<sub>y</sub><sup>piezo</sup></i>| was higher by a factor of 69 for the composite and by a factor of 12 for the monolithic cellular PZT lattice, when it was assumed that the ratio of the deformation of the bulk material to bulk material was 1. The mechanical amplification of the composite lattices increased up to 73 and that of the cellular PZT lattices decreased to 12. Special focus was given to the fracture behavior and the interface of the PZT/PZT-filled phenyl silicone resin interface. |
| first_indexed | 2024-03-09T18:12:58Z |
| format | Article |
| id | doaj.art-963a1f2b4d34419291f345acd63179c0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T18:12:58Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-963a1f2b4d34419291f345acd63179c02023-11-24T09:00:44ZengMDPI AGMaterials1996-19442022-11-011522789310.3390/ma15227893Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb MacrostructuresFranziska Eichhorn0Julia Bytomski1Markus Gerauer2Ken-ichi Kakimoto3Tobias Fey4Department of Material Science and Engineering, Institute of Glass and Ceramics, Friedrich-Alexander-Universität of Erlangen-Nürnberg, Martensstr. 5, D-91058 Erlangen, GermanyDepartment of Material Science and Engineering, Institute of Glass and Ceramics, Friedrich-Alexander-Universität of Erlangen-Nürnberg, Martensstr. 5, D-91058 Erlangen, GermanyDepartment of Material Science and Engineering, Institute of Glass and Ceramics, Friedrich-Alexander-Universität of Erlangen-Nürnberg, Martensstr. 5, D-91058 Erlangen, GermanyFrontier Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, JapanDepartment of Material Science and Engineering, Institute of Glass and Ceramics, Friedrich-Alexander-Universität of Erlangen-Nürnberg, Martensstr. 5, D-91058 Erlangen, GermanyHoneycomb-based, modular composites with a relative density of 0.3948 and a slenderness ratio <i>L<sub>ges</sub>/t</i> of 6.48 were fabricated on PZT building blocks connected with a PZT-filled phenyl silicone resin. The macro- and micro-structure, phase composition, and the interface between the two materials were analyzed by SEM and image analysis techniques. The mechanical <i>in-plane</i> strain response was determined with uniaxial compression tests and the <i>transversal</i> piezoelectric strain response was determined by applying an electric field. These deformations were analyzed by a 2D digital image correlation analysis to calculate the mechanical strain amplification of monolithic and composite PZT lattice structures. Compared to bulk PZT, the piezoelectric strain amplification in the Y-direction |<i>a<sub>y</sub><sup>piezo</sup></i>| was higher by a factor of 69 for the composite and by a factor of 12 for the monolithic cellular PZT lattice, when it was assumed that the ratio of the deformation of the bulk material to bulk material was 1. The mechanical amplification of the composite lattices increased up to 73 and that of the cellular PZT lattices decreased to 12. Special focus was given to the fracture behavior and the interface of the PZT/PZT-filled phenyl silicone resin interface.https://www.mdpi.com/1996-1944/15/22/7893piezoelectric materialsceramics-functionalceramics-structuralceramic compositespiezoceramic compositescellular solid |
| spellingShingle | Franziska Eichhorn Julia Bytomski Markus Gerauer Ken-ichi Kakimoto Tobias Fey Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures Materials piezoelectric materials ceramics-functional ceramics-structural ceramic composites piezoceramic composites cellular solid |
| title | Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures |
| title_full | Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures |
| title_fullStr | Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures |
| title_full_unstemmed | Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures |
| title_short | Improved Mechanical Amplification of Monolithic PZT and PZT Composite via Optimized Honeycomb Macrostructures |
| title_sort | improved mechanical amplification of monolithic pzt and pzt composite via optimized honeycomb macrostructures |
| topic | piezoelectric materials ceramics-functional ceramics-structural ceramic composites piezoceramic composites cellular solid |
| url | https://www.mdpi.com/1996-1944/15/22/7893 |
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