c-axis oriented ZnO formed in a rotating magnetic field with various rotation speeds
✍ Scribed by Satoshi Tanaka; Atsushi Makiya; Zenji Kato; Keizo Uematsu
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 920 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0955-2219
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✦ Synopsis
A rotating magnetic field was used to fabricate c-axis oriented zinc oxide. The influence of rotating speed on orientation structure was also examined. The aligned axes had the largest diamagnetic susceptibility, which axis was difficult to align with a static magnetic field. In c-axis oriented ZnO, the degree of orientation (Lotgering factor) in the green compact ranged from 0.2 to 0.5 along c-axis. The Lotgering factor increased with rotating speed. For all samples with the rotating magnetic field, the degrees of orientation increased up to above 0.9 after sintering at 1573 K.