Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5
The subsolidus phase diagram of the system Bi2O3–ZnO–Nb2O5 in the region of the cubic pyrochlore phase has been determined at 950 °C. This phase forms a solid solution area that does not include the so-called ideal composition P, Bi3Zn2Nb3O14. It may be described in terms of two compositional variab...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Royal Society of Chemistry
2005
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| Online Access: | http://psasir.upm.edu.my/id/eprint/42228/1/42228.pdf |
| _version_ | 1825929120075218944 |
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| author | Tan, Kar Ban Lee, C. K. Zainal, Zulkarnain Miles, Gabrielle C. West, Anthony Roy |
| author_facet | Tan, Kar Ban Lee, C. K. Zainal, Zulkarnain Miles, Gabrielle C. West, Anthony Roy |
| author_sort | Tan, Kar Ban |
| collection | UPM |
| description | The subsolidus phase diagram of the system Bi2O3–ZnO–Nb2O5 in the region of the cubic pyrochlore phase has been determined at 950 °C. This phase forms a solid solution area that does not include the so-called ideal composition P, Bi3Zn2Nb3O14. It may be described in terms of two compositional variables: ZnO deficiency compared to P together with variable Bi : Nb ratio. Density measurements, preliminary crystallographic studies and the phase diagram indicate the solid solutions to have general formula, Bi3+yZn2−xNb3−yO14−x−y: −0.11(1) ≤ y ≤ 0.14(1) and −0.03(1) ≤ x ≤ 0.31(1). |
| first_indexed | 2024-03-06T08:52:12Z |
| format | Article |
| id | upm.eprints-42228 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:52:12Z |
| publishDate | 2005 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | upm.eprints-422282016-04-12T05:04:25Z http://psasir.upm.edu.my/id/eprint/42228/ Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 Tan, Kar Ban Lee, C. K. Zainal, Zulkarnain Miles, Gabrielle C. West, Anthony Roy The subsolidus phase diagram of the system Bi2O3–ZnO–Nb2O5 in the region of the cubic pyrochlore phase has been determined at 950 °C. This phase forms a solid solution area that does not include the so-called ideal composition P, Bi3Zn2Nb3O14. It may be described in terms of two compositional variables: ZnO deficiency compared to P together with variable Bi : Nb ratio. Density measurements, preliminary crystallographic studies and the phase diagram indicate the solid solutions to have general formula, Bi3+yZn2−xNb3−yO14−x−y: −0.11(1) ≤ y ≤ 0.14(1) and −0.03(1) ≤ x ≤ 0.31(1). Royal Society of Chemistry 2005 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/42228/1/42228.pdf Tan, Kar Ban and Lee, C. K. and Zainal, Zulkarnain and Miles, Gabrielle C. and West, Anthony Roy (2005) Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5. Journal of Materials Chemistry, 15 (34). pp. 3501-3506. ISSN 0959-9428; ESSN: 1364-5501 http://pubs.rsc.org/en/content/articlelanding/2005/jm/b505803c#!divAbstract 10.1039/B505803C |
| spellingShingle | Tan, Kar Ban Lee, C. K. Zainal, Zulkarnain Miles, Gabrielle C. West, Anthony Roy Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 |
| title | Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 |
| title_full | Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 |
| title_fullStr | Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 |
| title_full_unstemmed | Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 |
| title_short | Stoichiometry and doping mechanism of the cubic pyrochlore phase in the system Bi2O3–ZnO–Nb2O5 |
| title_sort | stoichiometry and doping mechanism of the cubic pyrochlore phase in the system bi2o3 zno nb2o5 |
| url | http://psasir.upm.edu.my/id/eprint/42228/1/42228.pdf |
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