期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 560, 期 -, 页码 142-146出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.02.005
关键词
NbC; Biotemplate method; Young's modulus; Electrical property
资金
- NSFC [51002238, 51172205]
- Zhejiang Provincial NSF of China [Y4090420]
- Qianjiang Talent Project [2010R10029]
- 'Qianjiang Scholars' program
- SRF FOR ROCS, State Education Ministry [2010609]
- NSF [CMMI-1129979, CMMI-0968843]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0968843, 1129979] Funding Source: National Science Foundation
In this work, NbC nanowire arrays were successfully synthesized via a facile and cost-effective biotemplate method. Natural bamboo chips were used as both the carbon source and the template for formation of catalyst particles, which significantly simplify the synthesis process of NbC nanowire arrays. Based on the structural, morphological, and elemental analyses, a fluoride-assisted vapor-liquid-solid growth mechanism was proposed. In situ nanoscale three-point bending measurements demonstrated that the Young's modulus of NbC nanowires was in the range from 281 to 453 GPa with an average value of 338 +/- 55 GPa. The resistivity of NbC nanowires was further investigated by in situ electrical property characterization using a multipoint measurement inside a transmission electron microscope. The resistivity of NbC nanowires was calculated to be 5.02 m Omega cm. (C) 2013 Elsevier B.V. All rights reserved.
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