Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates
A finite element method (FEM)-based simulation approach to predict the tunability in composite materials was developed and tested with analytical data. These tests showed good prediction capabilities of the simulation for the test data. The simulation model was then used to predict the tunability of...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/2/710 |
| _version_ | 1797439197315858432 |
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| author | Kevin Häuser Zhiren Zhou Prannoy Agrawal Rolf Jakoby Holger Maune Joachim R. Binder |
| author_facet | Kevin Häuser Zhiren Zhou Prannoy Agrawal Rolf Jakoby Holger Maune Joachim R. Binder |
| author_sort | Kevin Häuser |
| collection | DOAJ |
| description | A finite element method (FEM)-based simulation approach to predict the tunability in composite materials was developed and tested with analytical data. These tests showed good prediction capabilities of the simulation for the test data. The simulation model was then used to predict the tunability of a network-structured composite, where the dielectric phase formed clusters in a paraelectric network. This was achieved by simulating a reciprocal core-shell unit cell of said network. The simulation showed a high tunability for this network model, exceeding the tunability of the analytically evaluated layered, columnar, and particulate model. The simulation results were experimentally verified with a Ba<sub>0.6</sub>Sr<sub>0.4</sub>TiO<sub>3</sub>/Mg<sub>3</sub>B<sub>2</sub>O<sub>6</sub> (BST/MBO) composite, where core-shell granulates were made with a two-step granulation process. These structured samples showed higher tunability and dielectric loss than the unstructured samples made for comparison. Overall, the structured samples showed higher tunability to loss ratios, indicating their potential for use in tunable radio frequency applications, since they may combine high performance with little energy loss. |
| first_indexed | 2024-03-09T11:49:15Z |
| format | Article |
| id | doaj.art-3559ad4dfdd04bd694cf3507a03aa284 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T11:49:15Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-3559ad4dfdd04bd694cf3507a03aa2842023-11-30T23:17:06ZengMDPI AGMaterials1996-19442023-01-0116271010.3390/ma16020710Network-Structured BST/MBO Composites Made from Core-Shell-Structured GranulatesKevin Häuser0Zhiren Zhou1Prannoy Agrawal2Rolf Jakoby3Holger Maune4Joachim R. Binder5IAM-ESS, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, GermanyIAM-ESS, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, GermanyIMP, Technical University of Darmstadt, 64283 Darmstadt, GermanyIMP, Technical University of Darmstadt, 64283 Darmstadt, GermanyIIKT, University of Magdeburg, 39106 Magdeburg, GermanyIAM-ESS, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, GermanyA finite element method (FEM)-based simulation approach to predict the tunability in composite materials was developed and tested with analytical data. These tests showed good prediction capabilities of the simulation for the test data. The simulation model was then used to predict the tunability of a network-structured composite, where the dielectric phase formed clusters in a paraelectric network. This was achieved by simulating a reciprocal core-shell unit cell of said network. The simulation showed a high tunability for this network model, exceeding the tunability of the analytically evaluated layered, columnar, and particulate model. The simulation results were experimentally verified with a Ba<sub>0.6</sub>Sr<sub>0.4</sub>TiO<sub>3</sub>/Mg<sub>3</sub>B<sub>2</sub>O<sub>6</sub> (BST/MBO) composite, where core-shell granulates were made with a two-step granulation process. These structured samples showed higher tunability and dielectric loss than the unstructured samples made for comparison. Overall, the structured samples showed higher tunability to loss ratios, indicating their potential for use in tunable radio frequency applications, since they may combine high performance with little energy loss.https://www.mdpi.com/1996-1944/16/2/710ceramic compositeFEMtunabilitydielectric behavior |
| spellingShingle | Kevin Häuser Zhiren Zhou Prannoy Agrawal Rolf Jakoby Holger Maune Joachim R. Binder Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates Materials ceramic composite FEM tunability dielectric behavior |
| title | Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates |
| title_full | Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates |
| title_fullStr | Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates |
| title_full_unstemmed | Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates |
| title_short | Network-Structured BST/MBO Composites Made from Core-Shell-Structured Granulates |
| title_sort | network structured bst mbo composites made from core shell structured granulates |
| topic | ceramic composite FEM tunability dielectric behavior |
| url | https://www.mdpi.com/1996-1944/16/2/710 |
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