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Investigators from Xidian University Have Reported New Data on Nanowires (Molecular dynamics understanding on tensile behaviours of cold welding...

July 15, 2014



Investigators from Xidian University Have Reported New Data on Nanowires (Molecular dynamics understanding on tensile behaviours of cold welding experiments of < 100 > oriented ultra-thin gold nanowires)

By a News Reporter-Staff News Editor at Physics Week -- New research on Nanowires is the subject of a report. According to news reporting from Xi'an, People's Republic of China, by VerticalNews journalists, research stated, "A molecular dynamic study on cold welding experiments of ultra-thin gold nanowires in < 100 > orientation was carried out at room temperature to understand their tensile behaviours. In order to investigate the size effects on cold welding, four kinds of ultra-thin gold nanowires with different diameters are simulated and analysed respectively."

The news correspondents obtained a quote from the research from Xidian University, "We studied the principle of cold welding through observing how the nanowire lattices evolve during the processes of cold welding and stretching. The strain-stress curves of single nanowire and welding nanowire are obtained and analysed, and then the young's modulus and yield strength are compared each other with corresponding diameters. The observation from the simulation results gives that the atoms in the solder joints would regroup into new lattices during cold welding processes. For the nanowires with small diameters, including Phi 3 nm and Phi 4 nm, the mechanical properties, such as the young's modulus, yield strength and yield strain, are all different between single nanowire and welding nanowire with the same diameter, and the single nanowire holds greater ones."

According to the news reporters, the research concluded: "As the nanowires' diameters larger than 4 nm, their mechanical properties are almost the same in the elastic period with corresponding diameters."

For more information on this research see: Molecular dynamics understanding on tensile behaviours of cold welding experiments of < 100 > oriented ultra-thin gold nanowires. Materials Research Innovations, 2014;18():673-677. Materials Research Innovations can be contacted at: Maney Publishing, Ste 1C, Josephs Well, Hanover Walk, Leeds LS3 1AB, W Yorks, England. (Springer - www.springer.com; Materials Research Innovations - www.springerlink.com/content/1432-8917/)

Our news journalists report that additional information may be obtained by contacting W. Wang, Xidian Univ, Sch Elect & Mech Engn, Xian, People's Republic of China.

Keywords for this news article include: Asia, Xi'an, Physics, Nanotechnology, Molecular Dynamics, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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