Synthesis of magnesium borate (Mg{sub 2}B{sub 2}O{sub 5}) nanowires, growth mechanism and their lubricating properties

Journal Article · Mon Aug 04 04:00:00 EDT 2008 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2007.08.022· OSTI ID:21144086

Yi, Zeng ^[1]; Haibin, Yang ^[1]; Wuyou, Fu ^[1]; Liang, Qiao ^[2]; Lianxia, Chang; Jiuju, Chen; Hongyang, Zhu; Minghui, Li; Guangtian, Zou ^[1]

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

Large quantities of single crystalline magnesium borate nanowires of the form Mg{sub 2}B{sub 2}O{sub 5} with typical diameter about 120-180 nm and length about 0.2 mm have been successfully synthesized by a new and simple method of heating the mixed tablet of Mg(BO{sub 2}){sub 2} and graphite directly in vacuum at 1200 deg. C for 1 h. The products have been characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectrometry and selected area electron diffraction. The process of the nucleation and the growth of nanowires have been analyzed by VS mechanism. The results of the lubricating properties show that the friction coefficient of the oil is significantly decreased by the addition of Mg{sub 2}B{sub 2}O{sub 5} nanowires. Our results indicate that the new method we use is effective in synthesis of Mg{sub 2}B{sub 2}O{sub 5} nanowires and the nanowires can be used as additive to antiwear nanodevices.

• OSTI ID: 21144086
• Journal Information: Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 8-9 Vol. 43; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BORATES
CRYSTAL GROWTH
ELECTRON DIFFRACTION
FRICTION FACTOR
LUBRICATION
MAGNESIUM COMPOUNDS
MECHANICAL PROPERTIES
MONOCRYSTALS
QUANTUM WIRES
SCANNING ELECTRON MICROSCOPY
SYNTHESIS
TEMPERATURE RANGE 1000-4000 K
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY