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Improving the phosphating process for Ca-P coating on ZK21 biomedical magnesium alloy

Year: 2024

Type: conference-paper

Abstract: The optimization study of the phosphating process was conducted on the surface of ZK21 biomedical magnesium alloy using the chemical conversion technique to fabricate Ca-P coating. The findings reveal that the optimal concentrations of the three additives in the phosphating solution, Ca(CH3COO)2, C6H4O5NSNa, and Na2MoO4, are 12 g/L, 2 g/L, and 0.5 g/L, respectively. Under these specified conditions, the resulting Ca-P coating appears compact and uniform. An optimal quantity of Ca(CH3COO)2 can enhance the concentration of Ca2+ in the solution. C6H4O5NSNa accelerates the rate of membrane formation, whereas Na2MoO4 facilitates the creation of nucleation sites, consequently bolstering membrane formation even further. Analysis through EDS and XRD confirmed that the predominant compound in the Ca-P coating is CaPO3(OH)2·2H2O (DCPD).

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2825/1/012044

Authors: Ruochao Wang, Qing Liu, Hongtao Liu

Institutions: Shandong Institute of Commerce & Technology, Qilu Medical University, Shandong Urban Construction Vocational College, Qilu University of Technology, Key Laboratory for High Strength Lightweight Metallic Materials of Shandong Province, Shandong Academy of Sciences

Language: English

Topic: Magnesium Alloys: Properties and Applications

Subfield: Biomaterials

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4401638120

FWCI:

Cites: 5

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Related to: 10