Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1464602 | Ceramics International | 2008 | 5 Pages |
Abstract
The effects of MgO (0–40 mol%) on the microstructure and the electrical properties have been studied in a binary ZnO–0.5 mol% V2O5 system. The microstructure of the samples consists mainly of ZnO grains with MgO and γ-Zn3(VO4)2 as the minority secondary phases. MgO is found to be effective as a grain growth inhibitor in controlling the ZnO grain growth, and a more uniform microstructure can be obtained. The non-linear coefficient α value is found to increase with the amount of MgO, and a highest value of 8.7 is obtained for the sample doped with 10 mol% MgO. Further addition of ≥20 mol% MgO decreases the α value.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
H.H. Hng, K.Y. Tse,