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Microstructural and hardness evolutions of a vacuum-assistant die-cast A380 (Al-8.67wt.%Si-3.27wt.%Cu) alloy during heat treatment were investigated. Isothermal DSC test at 200 °C revealed that the precipitation reaction in the surface layer was faster than that in the central region. This corresponded with the hardness evolution that the surface layer hardened faster. The hardness increment in the...
In this work, a new template assisted synthesis strategy for the preparation of Zn nanotubes is demonstrated. By means of the heating-induced volatilization, Zn nanotubes can be successfully converted from Zn nanowires embedded in anodic aluminum oxide (AAO) template. The morphology and crystal structure of as-prepared Zn nanotubes are examined by transmission electron microscopy, X-ray diffraction,...
There are no reports about the electronic transport behavior of the melting metal nanostructures because the morphology of nanostructures cannot be kept under the melting condition. Here, the electronic properties of the melting Bi nanowires are investigated using the pore confinement of anodic aluminum oxide template. The results indicate that with the increase of temperature the resistance of Bi...
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