Ablation resistance and erosion wear properties of supersonic plasma sprayed Al2O3-PF composite coatings prepared on resin surface

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-02-10 DOI:10.1016/j.surfcoat.2025.131900

Cong Wang , Yunlong Zhu , Haidou Wang , Ming Liu , Guo Jin , Xiang Meng , Shuying Chen , Guozheng Ma

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引用次数: 0

Abstract

Electromagnetic rail launcher is an advanced weapon, and the resin-based insulator is a crucial part of it. Despite their outstanding physical and mechanical properties, the easily oxidizable characteristics and unsatisfactory erosion wear performance prevent them from meeting higher demands. Preparing thermal sprayed ceramic/resin composite coatings on the surface of resin substrates is a feasible solution. The research successfully developed two types of supersonic plasma sprayed Al₂O₃-phenolic resin (Al₂O₃-PF) composite coatings on the surface of glass fiber reinforced epoxy resin. One is the S-Al₂O₃-PF composite coating prepared by spraying Al₂O₃/PF composite powder, whereas the other is the O-Al₂O₃-PF composite coating obtained by alternately spraying Al₂O₃ powder and Al₂O₃/PF composite powder. The thermodynamic properties and ablation resistance of Al₂O₃-PF composite coatings have been extensively investigated. The protective ability of Al₂O₃-PF composite coating on resin substrate has been thoroughly studied in terms of resistance to solid particle erosion wear. The results reveal that the Al₂O₃-PF composite coating has attractive thermodynamic properties and low heat conductivity (below 0.6 W·m⁻¹·K⁻¹). In regards to ablation resistance, the O-Al₂O₃-PF composite coating performs better. Its average ablation rate is about 0.029 g/s, which is 0.53 times that of the S-Al₂O₃-PF composite coating. Meanwhile, the Al₂O₃-PF composite coating assists in enhancing the erosion wear resistance of glass fiber reinforced epoxy resin. Among them, the erosion rate of the composite coating at the 90° erosion angle is about 6.65 × 10⁻³ mm³·g⁻¹, which is 0.42 times that of glass fiber reinforced epoxy resin. The study provides an effective way to improve the service life and stability of traditional insulators.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.