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Bi2O3 Solubility of Bi-based Pyrochlores and Related Phases
被引:0
|作者:
Juan C. Nino
Hyuk J. Youn
Michael T. Lanagan
Clive A. Randall
机构:
[1] Pennsylvania State University,Center for Dielectric Studies, Materials Research Laboratory Building—MRI
[2] The Pennsylvania State University,A2 Materials Research Laboratory Building
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摘要:
Bismuth oxide solubility in Bi2O3–ZnO–Nb2O5 and Bi2O3–MgO–Nb2O5 (BMN) pyrochlore systems was investigated and the solubility limits were identified. Differences in the solubility behavior between the two Bi-pyrochlore systems investigated were analyzed and explained through crystal chemistry concepts. For the BMN system, the dielectric constant was enhanced, and a systematic shift occurred in the dielectric relaxation loss peak to higher temperatures with increases in the excess bismuth are reported in the BMN system. The relationship between solubility and the shift in the dielectric loss curve was analyzed under the scope of possible relaxation mechanisms.
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页码:1178 / 1182
页数:4
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