Improvement on replication quality of electroformed nickel mold inserts with micro/nano-structures. (July 2016)

• Record Type: Journal Article
• Authors: Weng, Can; Zhou, Mingyong; Jiang, Bingyan; Lv, Hui
• Is Part Of: International communications in heat and mass transfer. Volume 75(2016:Jul.)
• Page Start: 92
• Page End: 99
• Publication Date: 2016-07
• Subjects: Electroforming -- Replication quality -- Nickel mold insert -- Micro/nano-structure; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Heat -- Transmission; Mass transfer; Periodicals; 621.4022
• DOI: 10.1016/j.icheatmasstransfer.2016.03.025
• Languages: English
• ISSNs: 0735-1933

Abstract

Abstract: Electroforming has been successfully applied to transfer micro/nano-structures for fabrication of many highly precise products. Due to the difficulties of mass transfer within the micro/nano-cavities, the replication quality of micro/nano-structures is poor on the nickel electroformed mold inserts. In this paper, the effects of electrolyte convection on the flow field and nickel ion concentration distribution within the micro/nano-cavities have been investigated based on the COMSOL® Multiphysics software. Considering its micro/nano-hierarchical structures, a bamboo leaf has been applied as a master in the experiments. The surface appearances of mold inserts and the replication qualities of their micro/nano-structures have been greatly improved by enhancing the convection near the cathode.