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Structure of nanometre-sized Xe particles embedded in Al crystals

Song, M., Mitsuishi, K., Furuya, K., Allen, C. W., Birtcher, R. C. and Donnelly, S. E. (2004) Structure of nanometre-sized Xe particles embedded in Al crystals. Journal of Microscopy, 215 (3). pp. 224-229. ISSN 0022-2720

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he structure and lattice parameters of Xe particles about 1 nm to about 6 nm in size embedded in Al were investigated with off-Bragg condition high-resolution transmission electron microscopy. An Xe particle about 1 nm in size had different structural properties from those 2–6 nm in sizes. Some 1-nm Xe particles had an face-centred cubic (f.c.c.) structure with the same orientation as the Al matrix, whereas others of the same size had a non-f.c.c. structure. The lattice parameters of a 1-nm f.c.c. Xe particle were about 20% smaller than the average value obtained from electron diffraction, i.e. the particle was compressed by about 80%. The lattice parameters of Xe crystals about 2 nm to about 6 nm in size were almost the same as those obtained from diffraction results. One of the reasons for the extra compression seen with a 1-nm Xe particle is the increase in pressure inside an Xe particle with decreasing particle size.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Computing and Engineering > Electron Microscopy and Materials Analysis
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Depositing User: Graeme Greaves
Date Deposited: 01 Oct 2013 11:40
Last Modified: 01 Oct 2013 11:40


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