The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 2023
Filed:
Jul. 18, 2022
Jiangsu University, Zhenjiang, CN;
Jianzhong Zhou, Zhenjiang, CN;
Yanqiang Gou, Zhenjiang, CN;
Li Li, Zhenjiang, CN;
Hongxu Pu, Zhenjiang, CN;
Songling Chen, Zhenjiang, CN;
Xiankai Meng, Zhenjiang, CN;
Shu Huang, Zhenjiang, CN;
JIANGSU UNIVERSITY, Zhenjiang, CN;
Abstract
A method for preparing a super-hydrophobic aluminum alloy surface through flat-topped laser peening includes the following steps: pretreating an aluminum alloy surface; evenly coating the pretreated aluminum alloy surface with a nanoscale carbon powder layer; performing unconstrained peening treatment on the aluminum alloy surface using a square spot flat-topped nanosecond pulsed laser with the nanoscale carbon powder layer serving as an absorption layer, where beams are kept perpendicular to the aluminum alloy surface all the time; and removing residual carbon nanopowder after the peening, and reducing surface energy of the aluminum alloy material through low-temperature heat treatment, to obtain a super-hydrophobic aluminum alloy surface with micro-nano multiscale structures. According to the present disclosure, the carbon content near the surface layer of the aluminum alloy material is increased, and the hardness and wear resistance of the prepared hydrophobic surface can be effectively improved.