Influence of the nano hydroxyapatite powder on thermally sprayed HA coatings onto stainless steel

被引：38

作者：

Kulpetchdara, Krai ^{[1
]}

Limpichaipanit, Apichart ^{[1
]}

Rujijanagul, Gobwute ^{[1
]}

Randorn, Chamnan ^{[2
]}

Chokethawai, Komsanti ^{[1
,3
]}

机构：

[1] Chiang Mai Univ, Dept Phys & Mat Sci, Fac Sci, Chiang Mai 50200, Thailand

[2] Chiang Mai Univ, Dept Chem, Fac Sci, Chiang Mai 50200, Thailand

[3] Chiang Mai Univ, Mat Sci Res Ctr, Fac Sci, Chiang Mai, Thailand

来源：

SURFACE & COATINGS TECHNOLOGY | 2016年 / 306卷

关键词：

Hydroxyapatite (HA) coatings; High Velocity Oxy-Fuel (HVOF); Nano HA powder; FABRICATION; BONE;

D O I：

10.1016/j.surfcoat.2016.05.069

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The nano Hydroxyapatite (HA) powder was derived from a novel peroxide-based route (PBR) using calcium nitrate, phosphoric acid and hydrogen peroxide as peroxo-precursor. In present work, the effect of nano HA powder on the microstructure and properties of thermally sprayed HA coatings was investigated. The obtained powders were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD pattern of hydroxyapatite powder corresponded to that of hydroxyapatite and tricalcium phosphate. The nano HA powder was then deposited onto stainless steel substrates using High Velocity Oxy-Fuel (HVOF) method. The influence of the crystallization was evaluated by XRD and SEM. Mechanical property in terms of hardness and bioactivity of the coatings were investigated by Vickers micro hardness testing and soaking in simulated body fluid (SBF), respectively. The results showed that the HA coatings were a mixture of amorphous and crystalline phase. The hardness value of 2.15 +/- 0.08 GPa was obtained for the synthesized HA powder coating (SHAC). After soaking in SBF for 14 days, the layer formation of apatite could be observed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：181 / 186

页数：6

共 26 条

[1]

Eric M.R., 2011, HYDROXYAPATITE BASED

[2] Effect of heat treatments on HVOF hydroxyapatite coatings [J].

Fernandez, J. ;

Gaona, M. ;

Guilemany, J. M. .

JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2007, 16 (02) :220-228

[3] Nanostructured titania/hydroxyapatite composite coatings deposited by high velocity oxy-fuel (HVOF) spraying [J].

Gaona, M. ;

Lima, R. S. ;

Marple, B. R. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 458 (1-2) :141-149

[4]

Heimann R.B., 2015, Bioceramic coatings for medical implants: trends and techniques, DOI 10.1002/9783527682294

[5]

Hendra H., BIOMEDICAL ENG THEOR, P411

[6] Significance of melt-fraction in HVOF sprayed hydroxyapatite particles, splats and coatings [J].

Khor, KA ;

Li, H ;

Cheang, P .

BIOMATERIALS, 2004, 25 (7-8) :1177-1186

[7] Processing-microstructure-property relations in HVOF sprayed calcium phosphate based bioceramic coatings [J].

Khor, KA ;

Li, H ;

Cheang, P .

BIOMATERIALS, 2003, 24 (13) :2233-2243

[8] Plasma sprayed hydroxyapatite(HA) coatings produced with flame spheroidised powders [J].

Khor, KA ;

Cheang, P .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1997, 63 (1-3) :271-276

[9] How useful is SBF in predicting in vivo bone bioactivity? [J].

Kokubo, T ;

Takadama, H .

BIOMATERIALS, 2006, 27 (15) :2907-2915

[10]

Legoux J.G., 2000, THERM SPRAY SURF ENG, P479

← 1 2 3 →