Research Progress of Hydroxyapatite Nano Biological Coatings Prepared by Suspension Plasma Spraying
ZHANG Jin-tao, WU Hao, LU Han, CAO Jun, REN Lu, ZHANG Xiu-qiang, SUO Xin-kun
Affiliations
ZHANG Jin-tao, WU Hao, LU Han, CAO Jun, REN Lu, ZHANG Xiu-qiang, SUO Xin-kun
1. Institute of Multi-Dimensional Additive Manufacturing, Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China; ;2. The Affiliated Hospital of Medical School, Ningbo University, Ningbo 315100, China; ;3. Ningbo Zhanci New Material Technology Co., Ltd., Ningbo 315338, China
As a new spraying method, suspension plasma spraying (SPS) can prepare biological coatings with uniform microstructures and few defects. In the paper, the principle of hydroxyapatite (HA) nano biological coatings prepared by SPS was introduced. The formation mechanisms of structure of sintering zones and densification zones were summarized, and the droplet evolution of the suspension during flight was analyzed. The effects of process parameters on HA biological coatings by SPS were discussed, and the deposition mechanisms of HA coatings were revealed. Besides, the mechanical properties, antibacterial properties, cell compatibility and in vitro bioactivity of HA coatings prepared by SPS were summarized.
