Electrical conduction properties of LaP 3O 9 glass and glass-ceramics

Koji Amezawa, Takamitsu Tomiga, Naoichi Yamamoto, Teiichi Hanada, Yoichi Tomii

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Electrical conduction properties of undoped and 1 mol% Sr-doped LaP3O9 glasses and glass-ceramics were investigated over the temperature range of 673-1123 K. Both the materials showed relatively low conductivities in the glassy state. However, the conductivity of the Sr-doped LaP3O9 glass significantly increased with a heat treatment above the crystallization temperature, while the conductivity of the undoped LaP3O9 glass did not improve even after the heat treatment. It was concluded that crystallization of the Sr-doped LaP3O9 glass induced protonic conduction and thus enhanced the conductivity. Electrical conduction properties of the Sr-doped LaP3O9 glass-ceramic fundamentally resembled those of the sintered crystalline Sr-doped LaP3O9.

Original languageEnglish
Pages (from-to)3211-3214
Number of pages4
JournalJournal of the American Ceramic Society
Issue number11
Publication statusPublished - 2005 Nov


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