کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1656858 1517602 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
HA coating fabricated by electrochemical deposition on modified Ti6Al4V alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
HA coating fabricated by electrochemical deposition on modified Ti6Al4V alloy
چکیده انگلیسی


• Immerse Ti6Al4V alloy in NaOH solution
• Hydroxyapatite coatings were deposited by electrochemical deposition method.
• We examine changes of composition, microstructure and bonding strength of coating.
• Lamellar HA crystals form on the modified Ti6Al4V surfaces.
• Formation mechanisms of coating on modified substrate surface were discussed.

In the paper, Ti6Al4V substrates have been pretreated with sodium hydroxide (NaOH) solution. After that, hydroxyapatite (HA) is deposited on the Ti6Al4V surface by electrochemical methods. The aim of this study is to investigate the influences of current density on the coating compositions, microstructure, and bonding strength between coating and substrate. The results show that the composition of the HA coating and the grain size remained relatively unchanged with the variations of current density during electrochemical deposition. When the value of electrochemical deposition current density is 2.5 mA/cm2, the HA coating has the largest thickness, and the bonding strength is near 18 MPa. The experiments of the samples being immersed into simulated body fluid estimate that the HA coating promotes the deposition of calcium phosphate. The formation mechanism of HA coating on modified Ti6Al4V deposited by electrochemical method is discussed.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 277, 15 September 2015, Pages 203–209
نویسندگان
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