研究目的
Investigating the effect of current density and ZnO nanoparticles on the microstructure and mechanical strengthening properties of Zn-TiO2-ZnO alloys at constant deposition time.
研究成果
The incorporation of TiO2/ZnO nano-ceramics composite particles in the zinc matrix significantly enhanced the hardness and wear resistance of the coatings, with over 75% improvement in hardness properties. The coatings also showed excellent corrosion resistance. The study demonstrates the potential of Zn-TiO2-ZnO nanocomposite coatings for applications requiring enhanced mechanical and corrosion-resistant properties.
研究不足
The study focused on specific current densities and ZnO loadings, which may not cover all potential variations. The corrosion tests were conducted in a static NaCl solution, which may not fully represent dynamic or more complex corrosive environments.
1：Experimental Design and Method Selection:
The study involved electrocodeposition of Zn-TiO2-ZnO nanocomposites on mild steel substrates using varying current densities and ZnO nanoparticle loadings.
2：Sample Selection and Data Sources:
Mild steel coupons were used as substrates, and the chemical composition was specified.
3：List of Experimental Equipment and Materials:
Equipment included SEM with EDS, Dura scan micro-hardness tester, CERT UMT-2 tribological tester, and Autolab PGSTAT 101 potentiostat. Materials included ZnCl2, KCl, TiO2, ZnO nanoparticles, and other chemicals for the plating solution.
4：Experimental Procedures and Operational Workflow:
Substrates were prepared, activated, and coated in a plating solution under controlled conditions. Coatings were characterized for microstructure, hardness, wear resistance, and corrosion properties.
5：Data Analysis Methods:
Data from SEM/EDS, hardness tests, wear tests, and electrochemical tests were analyzed to evaluate the coatings' properties.
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