Chadwick, A.V. and Savin, S.L.P. and Pooley, M.P. and Rammutla, K.E. and Rougier, A.R. (2003) A comparison of the extended x-ray absorption fine structure of nanocrystalline ZrO2 prepared by high-energy ball milling and other methods. JOURNAL OF PHYSICS-CONDENSED MATTER , 15 (3). pp. 431-440. ISSN 0953-8984 .
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Abstract
We report the results of an extended x-ray absorption fine structure (EXAFS) study of a sample of ZrO2 prepared by high-energy ball milling. X-ray diffraction showed that the sample contained nanocrystals that were predominantly monoclinic with a particle size of 15 nm. The EXAFS for the sample was strongly attenuated in comparison to that for bulk monoclinic ZrO2. This has been interpreted as the ball-milled sample containing a large level of disorder whose possible origins are discussed. In contrast, our previous EXAFS studies of nanocrystalline oxides prepared by sol-gel methods have shown that these samples contain well-ordered crystallites with grain boundaries similar to those in bulk materials. It is concluded that ball-milled samples are very different from oxide nanocrystals produced by other techniques.
| Item Type: | Article |
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| Subjects: | Q Science |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group Faculties > Science Technology and Medical Studies > School of Physical Sciences |
| Depositing User: | Alan Chadwick |
| Date Deposited: | 15 Sep 2008 10:32 |
| Last Modified: | 06 Sep 2011 00:22 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/9393 (The current URI for this page, for reference purposes) |
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