High temperature dielectric properties of cubic bismuth zinc tantalate.
Electrical properties of the parent phase in the Bi2O3–ZnO–Ta2O5 ternary system, cubic Bi1.5ZnTa1.5O7 (α-BZT), P, are investigated using impedance spectroscopy. P has permittivity (ɛ′) of 58, dielectric loss (tan δ) of 0.0023 at 30 °C and 1 MHz; temperature coefficient of capacitance (TCC) of −156 p...
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| Format: | Article |
| Language: | English English |
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Elsevier Limited
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/15007/ http://psasir.upm.edu.my/id/eprint/15007/1/High%20temperature%20dielectric%20properties%20of%20cubic%20bismuth%20zinc%20tantalate.pdf |
| _version_ | 1848842556663660544 |
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| author | Khaw, Chwin Chieh Tan, Kar Ban Lee, C. K. |
| author_facet | Khaw, Chwin Chieh Tan, Kar Ban Lee, C. K. |
| author_sort | Khaw, Chwin Chieh |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Electrical properties of the parent phase in the Bi2O3–ZnO–Ta2O5 ternary system, cubic Bi1.5ZnTa1.5O7 (α-BZT), P, are investigated using impedance spectroscopy. P has permittivity (ɛ′) of 58, dielectric loss (tan δ) of 0.0023 at 30 °C and 1 MHz; temperature coefficient of capacitance (TCC) of −156 ppm/°C in the range of 30–300 °C at 1 MHz. A high degree of dispersion in the permittivity at low frequencies (<1 kHz) and temperatures above 500 °C is apparent. Dielectric losses exhibit non-frequency dependence at low temperatures presenting an increase at temperatures above 500 °C. A decrease of the loss occurs with increasing frequency. |
| first_indexed | 2025-11-15T08:01:01Z |
| format | Article |
| id | upm-15007 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:01:01Z |
| publishDate | 2009 |
| publisher | Elsevier Limited |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-150072015-09-28T00:59:31Z http://psasir.upm.edu.my/id/eprint/15007/ High temperature dielectric properties of cubic bismuth zinc tantalate. Khaw, Chwin Chieh Tan, Kar Ban Lee, C. K. Electrical properties of the parent phase in the Bi2O3–ZnO–Ta2O5 ternary system, cubic Bi1.5ZnTa1.5O7 (α-BZT), P, are investigated using impedance spectroscopy. P has permittivity (ɛ′) of 58, dielectric loss (tan δ) of 0.0023 at 30 °C and 1 MHz; temperature coefficient of capacitance (TCC) of −156 ppm/°C in the range of 30–300 °C at 1 MHz. A high degree of dispersion in the permittivity at low frequencies (<1 kHz) and temperatures above 500 °C is apparent. Dielectric losses exhibit non-frequency dependence at low temperatures presenting an increase at temperatures above 500 °C. A decrease of the loss occurs with increasing frequency. Elsevier Limited 2009-05 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15007/1/High%20temperature%20dielectric%20properties%20of%20cubic%20bismuth%20zinc%20tantalate.pdf Khaw, Chwin Chieh and Tan, Kar Ban and Lee, C. K. (2009) High temperature dielectric properties of cubic bismuth zinc tantalate. Ceramics International, 35 (4). pp. 1473-1480. ISSN 0272-8842 10.1016/j.ceramint.2008.08.006 English |
| spellingShingle | Khaw, Chwin Chieh Tan, Kar Ban Lee, C. K. High temperature dielectric properties of cubic bismuth zinc tantalate. |
| title | High temperature dielectric properties of cubic bismuth zinc tantalate. |
| title_full | High temperature dielectric properties of cubic bismuth zinc tantalate. |
| title_fullStr | High temperature dielectric properties of cubic bismuth zinc tantalate. |
| title_full_unstemmed | High temperature dielectric properties of cubic bismuth zinc tantalate. |
| title_short | High temperature dielectric properties of cubic bismuth zinc tantalate. |
| title_sort | high temperature dielectric properties of cubic bismuth zinc tantalate. |
| url | http://psasir.upm.edu.my/id/eprint/15007/ http://psasir.upm.edu.my/id/eprint/15007/ http://psasir.upm.edu.my/id/eprint/15007/1/High%20temperature%20dielectric%20properties%20of%20cubic%20bismuth%20zinc%20tantalate.pdf |