title: Robust Slippery Coating with Superior Corrosion Resistance and Anti-Icing Performance for AZ31B Mg Alloy Protection.
abstract: Biomimetic slippery liquid-infused porous surfaces (SLIPSs) are developed as a potential alternative to superhydrophobic surfaces (SHSs) to resolve the issues of poor durability in corrosion protection and susceptibility to frosting. Herein, we fabricated a double-layered SLIPS coating on the AZ31 Mg alloy for corrosion protection and anti-icing application. The porous top layer was infused by lubricant, and the compact underlayer was utilized as a corrosion barrier. The water-repellent SLIPS coating exhibits a small sliding angle and durable corrosion resistance compared with the SHS coating. Moreover, the SLIPS coating delivers durable anti-icing performance for the Mg alloy substrate, which is obviously superior to the SHS coating. Multiple barriers in the SLIPS coating, including the infused water-repellent lubricant, the self-assembled monolayers coated porous top layer, and the compact layered double hydroxide-carbonate composite underlayer, are suggested as being responsible for the enhanced corrosion resistance and anti-icing performance. The robust double-layered SLIPS coating should be of great importance to expanding the potential applications of light metals and their alloys.
authors.affiliation: School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University , Hangzhou 310027, China.|Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province , Hangzhou 310027, China.
authors.forename: Jialei
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University , Hangzhou 310027, China.|Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province , Hangzhou 310027, China.
authors.forename: Changdong
authors.identifier: http://orcid.org/0000-0001-8286-263X
authors.initials: C
authors.lastname: Gu
authors.affiliation: School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University , Hangzhou 310027, China.|Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province , Hangzhou 310027, China.
authors.forename: Jiangping
authors.initials: J
authors.lastname: Tu
keywords: Mg alloy; SLIPS; anti-icing; corrosion resistance; durability