悬浮液等离子喷涂制备羟基磷灰石纳米生物涂层研究进展

Research Progress of Hydroxyapatite Nano Biological Coatings Prepared by Suspension Plasma Spraying

悬浮液等离子喷涂(SPS)作为一种新兴的喷涂方法,能够制备均匀、缺陷少的生物涂层。介绍了SPS制备羟基磷灰石(HA)纳米生物涂层的原理,总结了烧结区和致密区组织的形成机制,分析了悬浮液在飞行过程中的液滴演化,讨论了不同工艺参数对SPS制备HA生物涂层的影响,揭示了HA涂层沉积机理,概括了SPS制备HA生物涂层的力学性能、抗菌性能、细胞相容性和体外生物活性等性能。

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.