Electronic Resource
s.l. ; Stafa-Zurich, Switzerland
Solid state phenomena
Vol. 119 (Jan. 2007), p. 9-12
ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Nanophase tin powder having sizes ranging from 6 to 40 nm was synthesized by the inertgas condensation method using helium as the convection gas. As-synthesized particles smaller than 8nm were the amorphous tin oxide. As-synthesized particles larger than 10 nm can be characterized bythe core-shell structure comprising inner crystalline tin core and outer amorphous tin oxide shellhaving a thickness of about 4 nm. Upon annealing in air, the oxidation of nanophase tin particlesstrongly depended on particle size. With increasing particle size, the transformation into thecrystalline phases took places at a higher temperature. Calculation of the size dependent meltingtemperature of tin particles indicates that melting of the tin encapsulated with the amorphous tinoxide took place prior to the oxidation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.119.9.pdf
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