The properties of hydroxyapatite ceramic coatings produced by plasma electrolytic oxidation

被引：53

作者：

Adeleke, S. A. ^{[1
]}

Ramesh, S. ^{[1
]}

Bushroa, A. R. ^{[1
]}

Ching, Y. C. ^{[1
]}

Sopyan, I. ^{[2
]}

Maleque, M. A. ^{[2
]}

Krishnasamy, S. ^{[3
]}

Chandran, Hari ^{[4
]}

Misran, H. ^{[5
]}

Sutharsini, U. ^{[6
]}

机构：

[1] Univ Malaya, Ctr Adv Mfg & Mat Proc, Dept Mech Engn, Fac Engn, Kuala Lumpur 50603, Malaysia

[2] Int Islamic Univ Malaysia, Dept Mfg & Mat Engn, POB 10, Kuala Lumpur 50728, Malaysia

[3] Univ Malaya, Dept Surg, Fac Med, Kuala Lumpur 50603, Malaysia

[4] Univ Malaya, Div Neurosurg, Fac Med, Kuala Lumpur 50603, Malaysia

[5] Univ Tenaga Nas, Nanoarchitecton Lab, Dept Mech Engn, Coll Engn, Kajang 43000, Selangor, Malaysia

[6] Univ Jaffna, Dept Phys, Jaffna 40000, JA, Sri Lanka

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 02期

关键词：

Plasma electrolytic oxidation; Hydroxyapatite coating; Coating characteristics; ELECTROPHORETIC DEPOSITION; ADHESION; CALCIUM; ALLOY; TITANIUM; PARAMETERS; SURFACE; FILMS; PEO; MG;

D O I：

10.1016/j.ceramint.2017.10.114

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Calcium phosphate coatings produced on the surface of Ti6A14V by plasma electrolytic oxidation (PEO) using different concentrations of hydroxyapatite (HA) in a 0.12 M Na3PO4 (NAP) electrolyte solution was investigated. It was found that the amount of calcium phosphate particles infiltrated into the coating layer as well as the thickness and the surface roughness of the coating increased with increasing HA concentration. The porosity of the ceramic coatings indicated an inverse relationship with the concentration of HA particles dispersed in the NAP solution. The result also demonstrates that higher scratch adhesive strength was achieved using 1.5 g/L HA solution, producing a critical load of 2099 mN, while 0 g/L HA only produced a critical load of 1247 mN. The adhesion becomes independent of thickness when the concentration of HA exceeds 1.5 g/L. The failure of the coating was characterized by large periodic hemispherical chipping, while intermittent delamination was noticed with the coating embedded with HA particles. This study demonstrate the viability of using PEO to produce a thin layer of HA ceramic coating on Ti6A14V suitable for biomedical applications.

引用

页码：1802 / 1811

页数：10

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