Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Key engineering materials
Vol. 336-338 (Apr. 2007), p. 2166-2168
ISSN:
1013-9826
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Boron carbide nanobelts have been synthesized successfully by carbothermal growth method.Boron oxide, activated carbon, gallium oxide and sodium chloride in the molar ratios of 1: 5: 0.03: 0.2were used as raw materials. The width and thickness of the nanobelts range from 1 to 10 μm, and 80 to150 nm respectively. The length is up to 50–200 μm. Diffraction peaks in the XRD pattern can be indexedto rhombohedral boron carbide with lattice parameters of a=5.616Å, c=12.067 Å. SAED pattern recordedalong [ 010 ] zone axis shows (104 ) growth direction. A vapor–liquid–solid (VLS) growth process on theactive catalyst surface is supposed to interpret the growth mechanism of as–synthesized nanobelts
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2166.pdf
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