Effect of A/B sites co-doping on the structure, electric and dielectric properties of CaTiSiO5 ceramics
Dielectrics with high permittivity and temperature stability are important for the development of high-temperature multilayer ceramic capacitors (MLCCs). In this study, Ca[Formula: see text]NaxTi[Formula: see text]NbxSiO5 (abbreviated as CTS[Formula: see text]NN) ceramics were prepared by solid-phas...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
World Scientific Publishing
2025-04-01
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| Series: | Journal of Advanced Dielectrics |
| Subjects: | |
| Online Access: | https://www.worldscientific.com/doi/10.1142/S2010135X2450022X |
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| Summary: | Dielectrics with high permittivity and temperature stability are important for the development of high-temperature multilayer ceramic capacitors (MLCCs). In this study, Ca[Formula: see text]NaxTi[Formula: see text]NbxSiO5 (abbreviated as CTS[Formula: see text]NN) ceramics were prepared by solid-phase reaction method. The introduction of NN weakens the long-range ordered displacement of Ti, leading to a significant increase in the dielectric temperature stability. The CTS−2%NN samples exhibit high permittivity (53) and TCC [Formula: see text] ppm/∘C in the range of [Formula: see text]C to 300∘C. The CTS-based ceramics behave high dielectric temperature stability. In addition, the bandgap of the CTS-based ceramics increased significantly, which is favorable for improving the breakdown strength of the material. For [Formula: see text]% samples, the breakdown strength reaches 621[Formula: see text]kV/cm. Thus, the designed CTS-based dielectrics are promising for high-temperature capacitors. |
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| ISSN: | 2010-135X 2010-1368 |