Anomalous evaporation behavior of ZnO powder milled mechanically under high-energy conditions

Glushenkov, A. M., Zhang, H. Z. and Chen, Y. 2008, Anomalous evaporation behavior of ZnO powder milled mechanically under high-energy conditions, Materials letters, vol. 62, no. 4-5, pp. 715-718.

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Title Anomalous evaporation behavior of ZnO powder milled mechanically under high-energy conditions
Author(s) Glushenkov, A. M.
Zhang, H. Z.
Chen, Y.
Journal name Materials letters
Volume number 62
Issue number 4-5
Start page 715
End page 718
Total pages 4
Publisher Elsevier B. V.
Place of publication Amsterdam, The Netherlands
Publication date 2008-02-29
ISSN 0167-577X
1873-4979
Summary ZnO powder showed anomalous evaporation behavior after its mechanical milling treatment under high-energy conditions. The amount of generated vapor is about 10 times higher in the first 15 min of annealing at 1300 °C than that of unmilled ZnO powders. The strong ball impacts are responsible for the greatly enhanced evaporation ability. Low-energy ball milling involving shearing actions and rare weak impacts leads only to a small evaporation rate enhancement. The possible explanation of the high evaporation rate of the heavily milled material is the existence of large fraction of weakly bonded atoms in grain boundaries, surface defects and strained areas.
Language eng
Field of Research 030302 Nanochemistry and Supramolecular Chemistry
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2007, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30023691

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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