Atomically smooth surfaces through thermoplastic forming of metallic glass

Kumar, Golden; Staffier, Peter A.; Blawzdziewicz, Jerzy; Schwarz, Udo D.; Schroers, Jan
September 2010
Applied Physics Letters;9/6/2010, Vol. 97 Issue 10, p101907
Academic Journal
We demonstrate that atomically smooth surfaces can be generated by thermoplastic forming of metallic glasses. This is enabled by the flow associated with the contact-line motion which removes rough surface layer from the advancing metallic glass-air interface. The thermoplastically formed surface is two orders of magnitude smoother than a polished surface of the same alloy. This process is capable of generating atomically smooth surfaces and replicating nanoscale features in a single processing step, providing a versatile toolbox for nanofabrication.


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