Inference of Pure Titanium Micro-Arc Oxidation Process on Microstructure of Calcium Phosphate Membrane Layer

In this paper, the growth law of the phosphate and calcium layer in different voltage process was studied. The surface morphology of the film was observed by SEM, and then the distribution of phosphorus and calcium in the film was analyzed. The results show that the higher the voltage, the more uniform the pore size in the film layer, the larger the pore size, the lower the pore density and the lower porosity. And with the increase of voltage, the content of calcium and phosphorus in the film layer increased, the ratio of calcium and phosphorus content remained basically unchanged.