Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1485698 | Journal of Non-Crystalline Solids | 2007 | 6 Pages |
Abstract
Nano-meter sized structural inhomogeneities of (CuI)0.52-(Cu2MoO4)0.48 superionic conducting glass were investigated by high resolution transmission electron microscopy. The as-quenched sample of CuI-Cu2MoO4 is a homogeneous glass, in which the CuI component is finely and uniformly dispersed among the oxyanions of Cu2MoO4 glassy matrix. A two-step crystallization, starting at 440 and 495Â K, was observed in the glass. After the first step crystallization, precipitating nano-crystalline cubic CuI 2-3Â nm in diameter, the electrical conductivity increases by about 50%. On the other hand, the electrical conductivity decreases with the second crystallization event forming crystalline phases of CuI, Cu2O and others 20-30Â nm in diameter.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Takao Tsurui, Junichi Kawamura, Kenji Suzuki,