Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores
A new pyrochlore solid solution, Bi1.5-xCuNb1.5+xO7+x has been synthesized using conventional solid state method. The synthesized ceramic samples were fired at 925ºC and their phase purities were analyzed using Shimadzu XRD-6000, X-ray powder diffractometer. The refinement process was performed usi...
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| Format: | Article |
| Language: | English |
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Malaysian Solid State Science and Technology Society
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/24901/ http://psasir.upm.edu.my/id/eprint/24901/1/Preparation%20and%20characterization%20of%20new%20Bi1.pdf |
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| author | Chon, Mun Ping Tan, Kar Ban Khaw, Chwin Chieh Zainal, Zulkarnain Yap, Taufiq Yun Hin |
| author_facet | Chon, Mun Ping Tan, Kar Ban Khaw, Chwin Chieh Zainal, Zulkarnain Yap, Taufiq Yun Hin |
| author_sort | Chon, Mun Ping |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | A new pyrochlore solid solution, Bi1.5-xCuNb1.5+xO7+x has been synthesized using conventional solid state method. The synthesized ceramic samples were fired at 925ºC
and their phase purities were analyzed using Shimadzu XRD-6000, X-ray powder diffractometer. The refinement process was performed using Chekcell programme with
Fd-3m symmetry. The cubic pyrochlore structures were confirmed with a = 10.5024 (3) Å and 10.5092 (5) Å for x = 0.1 and x = 0.2, respectively. Lattice constants of the cubic pyrochlore have been found increased with increase of Nb content. On the other hand, the resulting powder was pelletized and sintered at sintering temperature prior to
impedance spectroscopy (IS) measurement. The electrical measurement was carried out in the frequency range of 0.1 Hz – 10 MHz over a temperature from room temperature
to 800ºC, in both cooling and heating cycles. |
| first_indexed | 2025-11-15T08:42:26Z |
| format | Article |
| id | upm-24901 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:42:26Z |
| publishDate | 2011 |
| publisher | Malaysian Solid State Science and Technology Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-249012016-11-28T03:43:03Z http://psasir.upm.edu.my/id/eprint/24901/ Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores Chon, Mun Ping Tan, Kar Ban Khaw, Chwin Chieh Zainal, Zulkarnain Yap, Taufiq Yun Hin A new pyrochlore solid solution, Bi1.5-xCuNb1.5+xO7+x has been synthesized using conventional solid state method. The synthesized ceramic samples were fired at 925ºC and their phase purities were analyzed using Shimadzu XRD-6000, X-ray powder diffractometer. The refinement process was performed using Chekcell programme with Fd-3m symmetry. The cubic pyrochlore structures were confirmed with a = 10.5024 (3) Å and 10.5092 (5) Å for x = 0.1 and x = 0.2, respectively. Lattice constants of the cubic pyrochlore have been found increased with increase of Nb content. On the other hand, the resulting powder was pelletized and sintered at sintering temperature prior to impedance spectroscopy (IS) measurement. The electrical measurement was carried out in the frequency range of 0.1 Hz – 10 MHz over a temperature from room temperature to 800ºC, in both cooling and heating cycles. Malaysian Solid State Science and Technology Society 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/24901/1/Preparation%20and%20characterization%20of%20new%20Bi1.pdf Chon, Mun Ping and Tan, Kar Ban and Khaw, Chwin Chieh and Zainal, Zulkarnain and Yap, Taufiq Yun Hin (2011) Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores. Solid State Science and Technology, 19 (1). pp. 175-189. ISSN 0128-7389 http://journal.masshp.net/volume-19-no-1-2011/ |
| spellingShingle | Chon, Mun Ping Tan, Kar Ban Khaw, Chwin Chieh Zainal, Zulkarnain Yap, Taufiq Yun Hin Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores |
| title | Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores |
| title_full | Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores |
| title_fullStr | Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores |
| title_full_unstemmed | Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores |
| title_short | Preparation and characterization of new Bi1.5-xCuNb1.5+xO7+x pyrochlores |
| title_sort | preparation and characterization of new bi1.5-xcunb1.5+xo7+x pyrochlores |
| url | http://psasir.upm.edu.my/id/eprint/24901/ http://psasir.upm.edu.my/id/eprint/24901/ http://psasir.upm.edu.my/id/eprint/24901/1/Preparation%20and%20characterization%20of%20new%20Bi1.pdf |