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Laser Surface Engineering by D Waugh, J. R. Lawrence

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10

Laser hybrid fabrication of tunable micro- and nano-scale surface structures and their functionalization

M. Zhong; T. Huang    Tsinghua University, Beijing, China

Abstract

We introduce a novel laser processing-dealloying hybrid approach for tunable surface micro-nano structures. We used a high-power laser to deposit a CuMn alloy layer onto an engineering material surface, then fined its microstructure, and finally introduced a chemical dealloying process. Three kinds of micro-nano structures can be fabricated: nanoporous Cu structure, three-dimensional manganese-based nanoporous structure, and micro-nano hierarchical Cu/Cu2O structure. Their dimension is tunable via laser processing and dealloying parameters.

The fabricated micro-nano ...

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