Determination of optimum Al content in HA-Al2O3 nanocomposites coatings prepared by electrophoretic deposition on titanium substrate

被引：8
作者：
Askari, Nayereh [1 ]
Yousefpour, Mardali [1 ]
Rajabi, Masoud [2 ]
机构：
[1] Semnan Univ, Fac Mat & Met Engn, Semnan, Iran
[2] IKIU, Mat Engn Dept, Qazvin, Iran
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2018年 / 15卷 / 04期
关键词：
Alumina; Apatite; Crack growth; HA-Al2O3 bio nanocomposite; HYDROXYAPATITE COATINGS; STAINLESS-STEEL; BIOMEDICAL APPLICATIONS; MECHANICAL-PROPERTIES; BONE-IMPLANTS; HA COATINGS; TI METAL; FABRICATION; DEGRADATION; COMPOSITES;
D O I：
10.1111/ijac.12826
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：
In this research work, Hydroxyapatite (HA)-Al2O3 bio nanocomposite coatings were coated on titanium substrate by electrophoretic deposition (EPD) and reaction bonding process. The reaction bonding process densifies the coating and creates small uniform porosities. HA-Al2O3 bio nanocomposite coatings were analyzed by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). For the coatings sintered for 2hours at 850 degrees C, XRD results demonstrated no significant HA decomposition. The adhesion strength increased from 10.2MPa to 25MPa. It was determined that 50wt.% of Al is the optimum content for producing free-of-crack composite coatings on the titanium surface as shown by SEM examination.
引用
收藏
页码：970 / 979
页数：10
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