Electric-pulse discharge as a novel technique to synthesize {beta}-SiC nano-crystallites from liquid-phase organic precursors

Journal Article · Tue Jan 08 00:00:00 EST 2008 · Materials Research Bulletin

OSTI ID:21068176

Kai, Du ^[1]; Haibin, Yang ^[1]; Ronghui, Wei; Minghui, Li; Qingjiang, Yu; Wuyou, Fu; Nan, Yang; Hongyang, Zhu; Yi, Zeng ^[1]

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1. National Laboratory of Superhard Materials, Jilin University, Changchun 130012, Jilin (China)

{beta}-SiC nano-crystallites have been prepared by electric pulses discharged in liquid-phase organic precursors. The composition and crystal structure of the products were characterized by X-ray diffraction, Raman spectroscopy, field emission scanning electronic and transmission electron microscopy. Transmission electron microscopy showed that the sample synthesized from the precursor (hexamethyl disilane) is composed of uniform grains with only 8 nm, while the one synthesize from the other precursor (dimethyl silicone oil) is of better crystalline structure with average grain size 22 nm, which may be attributed to discharge in liquid-phase source and short discharge intervals.

• OSTI ID: 21068176
• Journal Information: Materials Research Bulletin, Vol. 43, Issue 1; Other Information: DOI: 10.1016/j.materresbull.2007.02.025; PII: S0025-5408(07)00060-8; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL STRUCTURE
FIELD EMISSION
GRAIN SIZE
LIQUIDS
PRECURSOR
RAMAN SPECTROSCOPY
SEMICONDUCTOR MATERIALS
SILANES
SILICON CARBIDES
SILICONES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION