| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1624300 | Journal of Alloys and Compounds | 2008 | 5 Pages |
Abstract
A nanocrystalline La2Mo2O9 oxide-ion conductor was synthesized by a novel poylaspartate precursor method at very low temperature of 430 °C. The obtained product was characterized by XRD, TEM, dilatometer, SEM and AC impedance spectroscopy. Due to nanocrystalline nature, La2Mo2O9 could be sintered to a density more than 97% of theoretical density even at relatively low temperature of 800 °C. The sintered La2Mo2O9 sample exhibited a conductivity of 0.16 S/cm in air at 750 °C. In addition, the ionic transport number of La2Mo2O9 was determined by modified electromotive force method in the temperature range of 600–800 °C and it remains higher than 99% (to > 0.99) in air.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A. Subramania, T. Saradha, S. Muzhumathi,