A biomedical pure magnesium surface functional structured ion implantation modified layer and its preparation method and application
A technology of ion implantation and functional structure, applied in the direction of ion implantation plating, pharmaceutical formulations, coatings, etc., can solve the problems of ineffective effect, Y implantation layer cannot achieve long-term protection, accelerate the corrosion rate of the substrate, etc., to achieve corrosion resistance Performance improvement, rapid degradation rate, and the effect of increasing the magnesium potential
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Embodiment 1
[0045] A functional structured ion implantation modified layer on the surface of biomedical pure magnesium, including a manganese modified layer ion implanted and evenly distributed on the surface of the pure magnesium, the manganese modified layer includes manganese element located in the inner layer and a manganese modified layer located in the surface layer Mn-MnO mixed layer with increasing manganese oxide content from inside to outside. Both manganese element and manganese oxide are doped in pure magnesium.
[0046] A method for preparing a functional structured ion implantation modified layer on the surface of biomedical pure magnesium, comprising the following steps:
[0047] (1) Pretreatment: use different types of metallographic sandpaper and polishing machine to polish the pure magnesium, put it in absolute ethanol solution for ultrasonic treatment for 10 minutes, and dry it with hot air;
[0048] (2) Perform Mn ion implantation on the pretreated sample (Mn target p...
Embodiment 2
[0054] The only difference between this embodiment and embodiment 1 is that the injection dose is 2×10 17 ions / cm 2 , the temperature of the sample during the injection process was 25°C. The weight loss of the modified sample was 6.25 mg after soaking in SBF solution for 168 hours.
Embodiment 3
[0056] The difference between this embodiment and embodiment 1 is that the temperature of the sample during the injection process is 300°C. The weight loss of the modified sample was 3.84 mg after soaking in SBF solution for 168 hours.
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