Influence of EDTA-2Na on the hydroxyapatite coating deposited by hydrothermal-electrochemical method on Ti6Al4V surface

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

“…c-plane) thereby hindering deposition along c-axis 114 . At reduced levels of EDTA, the supersaturation of electrolyte is lowered with a consequential increased growth rate along the caxis 113 . The addition of EDTA as an additive takes advantage of the control of crystal orientation more towards the a,b-axes and can be related to control in supersaturation of the chelate complex.…”

“…The influence of chelating agents on the crystallization of HAp has been reported by D. He et al , specifically the influence of EDTA on HAp deposition via the hydrothermal–electrochemical route. 113 With varying concentrations of EDTA, it was determined that the percentage crystallinity and coating thickness can be altered. The coating thickness decreased from 21 μm to ∼13 μm as concentrations increased, while the adhesive strength towards the substrate increased.…”

Ti6Al4V Alaşımına Sol-Jel Yöntemi ile Yapılan Hidroksiapatit Kaplamalarda Dietanolaminin Kaplama Morfolojisine ve Korozyon Dayanımına Etkisi

“…Hidroksiapatit (HA, (Ca10(PO4)6(OH)2) kemik ve dişlerde doğal olarak bulunan, 1,67 sitokiyometrik oranında Ca kalsiyum ve fostor elementlerini başlıca içeren bir kalsiyumfosfattır [5]. Bileşenlerinin bu denli kortikal kemiğe yakın olması, biyoaktiflik özelliğinin artmasına ve titanyum ve alaşımlarının gösteremediği osseointegrasyon özelliğini gösterebilmesini sağlamaktadır [6]. HA kaplama, titanyum ve alaşımları üzerine plazma sprey [7], sol-jel yöntemi [8], mikro ark oksidasyonu [9], darbeli lazer birikimi [10], elektroforez [11], hidrotermal-elektrokimyasal [12] yöntem ve benzeri çeşitli yöntemler kullanarak uygulanabilmektedir.…”

Tunable Microstructure and Morphology of the Self-Assembly Hydroxyapatite Coatings on ZK60 Magnesium Alloy Substrates Using Hydrothermal Methods

“…The hydrothermal method is one of the most popular methods that has been used to fabricate HA coatings on magnesium substrates [25]. This method has two main advantages: (1) The requirement for the equipment is relatively low [26], and (2) the HA coatings can be controlled by adjusting the paraments of the hydrothermal reactions [15,27].…”

“…When using the hydrothermal methods, the parameters of the reaction would greatly affect the formation of HA coatings. For example, Xia [15] studied the effect of the Ca/P ratio, He [26] studied the influence of the addition of ethylenediaminetetraacetic acid (EDTA). Ion substitution has been widely used to adjust the morphology and the performance of the HA coatings [30][31][32].…”