ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
The Cu-coated nano SiC composite particles were prepared by heterogeneous nucleationmethod. For the heterogeneous nucleation process, the dispered nano SiC particles and the activeCu2O precipitation were both prefabricated. The composite particles were characterized by means ofXRD, SEM, EDS, TEM and ED analysis technics. It is found that Cu layers are coated on the nanoSiC particles, which are continuous and dense, and partly oxidized to Cu2O, and the oxidation ratecan be reduced by improving experimental processes. The investigation on reaction mechanismshows the disproportionating reaction speed of Cu+ can be controlled by adjusting the pH value ofreaction solution, which makes the degree of supersaturation of Cu crystallites accord with theconditions of heterogeneous nucleation
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.373-374.674.pdf
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