Tổng hợp và nghiên cứu hình thái, cấu trúc tính chất của màng Fe3O4 tạo thành trên nền thép bằng phương pháp oxi hóa hóa học

Abstract

Iron oxide layers formed on mild steel substrates in alkaline media by chemical method were studied. The effects of some factors such as: NaOH, NaNO₃, NaNO₂ solution concentration, temperature on synthesized magnetite films on mild steel were investigated. Morphology and structure of the oxide film on mild steel, were formed in solution of (500 g/L NaOH, 100 g/L NaNO₃, 200 g/LNaNO₂₎, at temperature 120 ^oC, in 40 minutes were studied. The results showed that synthesized magnetite films have thickness 1.29±0.20 mm, crystal uniform globes, average diameter 20 nm.