Bi2O3 solubility of Bi-based pyrochlores and related phases

Juan C. Nino, Hyuk J. Youn, Michael T. Lanagan, Clive A. Randall

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)1178-1182
Number of pages5
JournalJournal of Materials Research
Issue number5
StatePublished - May 2002

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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