Hyper-Rapid thermal defect annealing during grinding of ZnO powders
- 21 October 2002
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 92 (9) , 5566-5568
Abstract
We report on the changes in the defect structure of ZnO particles that take place during the grinding of pure ZnO powders and mixtures ZnO – SnO 2 and ZnO – TiO 2 powders. The qualitative differences in the electron paramagnetic resonance spectra for different specimens were discussed in the context of the hyper-rapid high-temperature spikes created in ZnO particles during mechanical treatment. The thermal spikes cause the defect structure to undergo annealing. The spike duration of the hyper-rapid thermal defects annealing was dependent on the heat conductivity of the ZnO particle environment.Keywords
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