Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application
This paper reports on the influence of sintering additives CuO and MgO on the recently developed lead-free electrocaloric (EC) material Ba<sub>0.82</sub>Sr<sub>0.18</sub>Sn<sub>0.065</sub>Ti<sub>0.935</sub>O<sub>3</sub> (BSSnT-18-6.5). Deta...
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MDPI AG
2023-04-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/11/4/151 |
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| author | Zhenglyu Li Christian Molin Sylvia E. Gebhardt |
| author_facet | Zhenglyu Li Christian Molin Sylvia E. Gebhardt |
| author_sort | Zhenglyu Li |
| collection | DOAJ |
| description | This paper reports on the influence of sintering additives CuO and MgO on the recently developed lead-free electrocaloric (EC) material Ba<sub>0.82</sub>Sr<sub>0.18</sub>Sn<sub>0.065</sub>Ti<sub>0.935</sub>O<sub>3</sub> (BSSnT-18-6.5). Details on the sintering behavior and the resulting microstructure of bulk ceramic samples prepared through solid-state synthesis and their dielectric, ferroelectric, and electrocaloric properties are presented. On the one hand, the addition of CuO (<i>x</i><sub>CuO</sub> = 2%) significantly reduced the sintering temperature from 1400 °C to 1150 °C. On the other hand, the addition of MgO (<i>x</i><sub>MgO</sub> = 1%) dramatically reduced the average grain size from 40 µm to 0.4 µm, leading to an increase in dielectric breakdown strength from 4.4 V µm<sup>−1</sup> to 7.7 V µm<sup>−1</sup>. Thus, BSSnT-18-6.5 with the addition of MgO to bulk ceramic samples could achieve maximum EC temperature changes (|Δ<i>T</i><sub>EC</sub>|) of 0.27 K around 30 °C with almost no aberration within a broad temperature range from 5 °C to 50 °C under an applied electric field change of 5 V µm<sup>−1</sup>. The results show the potential of this material for the fabrication of multilayer ceramic (MLC) components for future electrocaloric applications. |
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| language | English |
| last_indexed | 2024-03-11T04:55:19Z |
| publishDate | 2023-04-01 |
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| series | Inorganics |
| spelling | doaj.art-9d35bdea56584eca97a99813440a76d42023-11-17T19:45:19ZengMDPI AGInorganics2304-67402023-04-0111415110.3390/inorganics11040151Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric ApplicationZhenglyu Li0Christian Molin1Sylvia E. Gebhardt2Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Winterbergstrasse 28, 01277 Dresden, GermanyFraunhofer Institute for Ceramic Technologies and Systems IKTS, Winterbergstrasse 28, 01277 Dresden, GermanyFraunhofer Institute for Ceramic Technologies and Systems IKTS, Winterbergstrasse 28, 01277 Dresden, GermanyThis paper reports on the influence of sintering additives CuO and MgO on the recently developed lead-free electrocaloric (EC) material Ba<sub>0.82</sub>Sr<sub>0.18</sub>Sn<sub>0.065</sub>Ti<sub>0.935</sub>O<sub>3</sub> (BSSnT-18-6.5). Details on the sintering behavior and the resulting microstructure of bulk ceramic samples prepared through solid-state synthesis and their dielectric, ferroelectric, and electrocaloric properties are presented. On the one hand, the addition of CuO (<i>x</i><sub>CuO</sub> = 2%) significantly reduced the sintering temperature from 1400 °C to 1150 °C. On the other hand, the addition of MgO (<i>x</i><sub>MgO</sub> = 1%) dramatically reduced the average grain size from 40 µm to 0.4 µm, leading to an increase in dielectric breakdown strength from 4.4 V µm<sup>−1</sup> to 7.7 V µm<sup>−1</sup>. Thus, BSSnT-18-6.5 with the addition of MgO to bulk ceramic samples could achieve maximum EC temperature changes (|Δ<i>T</i><sub>EC</sub>|) of 0.27 K around 30 °C with almost no aberration within a broad temperature range from 5 °C to 50 °C under an applied electric field change of 5 V µm<sup>−1</sup>. The results show the potential of this material for the fabrication of multilayer ceramic (MLC) components for future electrocaloric applications.https://www.mdpi.com/2304-6740/11/4/151lead-freeelectrocaloricsintering additivesdielectric breakdown strength |
| spellingShingle | Zhenglyu Li Christian Molin Sylvia E. Gebhardt Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application Inorganics lead-free electrocaloric sintering additives dielectric breakdown strength |
| title | Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application |
| title_full | Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application |
| title_fullStr | Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application |
| title_full_unstemmed | Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application |
| title_short | Influence of Sintering Additives on Modified (Ba,Sr)(Sn,Ti)O<sub>3</sub> for Electrocaloric Application |
| title_sort | influence of sintering additives on modified ba sr sn ti o sub 3 sub for electrocaloric application |
| topic | lead-free electrocaloric sintering additives dielectric breakdown strength |
| url | https://www.mdpi.com/2304-6740/11/4/151 |
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