Nanoscale Superplastic forming of Metallic Thin Films under Laser Shock

	Nanotech 2012 Vol. 2 Nanotechnology 2012: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational (Volume 2) Chapter 7: NanoFab: Manufacturing & Instrumentation
	Nanoscale Superplastic forming of Metallic Thin Films under Laser Shock
Authors:	G.J. Cheng, Y. Yang, H. Gao
Affilation:	Purdue University, US
Pages:	478 - 481
Keywords:	nanoscale superplastic nanoforming, pattering, metallic thin films, laser shock
Abstract:	Metallic materials can be permanently deformed into macro- and meso-scale structures. However, as the feature size decreases, metal forming has been proven to be increasingly difficult due to the limited formability. Here, we report a strategy, laser dynamic nanoforming (LDNF), to directly shape nanofeatures (<20 nm) on aluminum foils without high-temperature heating. This method is based on laser shock induced high-strain-rate forming with dry lubricant, which leads to significantly enhanced plasticity and mechanical strength. Microstructure analysis indicates that the nanoscale ultrahigh formability is due to the formation and evolution of nanocrystals during the deformation process. This method of nanoforming opens a new way to mass production of complex nanocomponents with superior mechanical properties.
ISBN:	978-1-4665-6275-2
Pages:	878
Hardcopy:	$209.95

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