کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7210744 | 1469220 | 2016 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One-Step Synthesis of TiO2-Hydroxyapatite Nano-films on NiTi Alloy by Hydrothermal Method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک مواد
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: One-Step Synthesis of TiO2-Hydroxyapatite Nano-films on NiTi Alloy by Hydrothermal Method One-Step Synthesis of TiO2-Hydroxyapatite Nano-films on NiTi Alloy by Hydrothermal Method](/preview/png/7210744.png)
چکیده انگلیسی
NiTi alloy was subjected to one-step hydrothermal treatment in the concentrated CaHPO4 and Ca(H2PO4)2 solutions for bioactive surface modification. Results show that the treated samples are covered by films composed of fine grains (â¼70 nm) and large particles (100â¼250 nm). X-ray photoelectron spectroscopy analysis indicates that Ti at the surface presents as TiO2, Ni is not detectable, and Ca and P exist in the form of calcium phosphate. X-ray diffraction peaks of anatase TiO2 and hydroxyapatite are presented for the treated samples. Potentiodynamic polarization test in a Ca-free Hank's balanced solution reveals that the treated sample has a markedly improved corrosion resistance compared with the polished sample. The present work would provide a one-step bioactive surface modification method with easy-operation, relatively low processing temperature and less corrosion, and potentially suitable for biomedical porous NiTi alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metal Materials and Engineering - Volume 45, Issue 5, May 2016, Pages 1128-1131
Journal: Rare Metal Materials and Engineering - Volume 45, Issue 5, May 2016, Pages 1128-1131
نویسندگان
Fu Tao, Li Hongwei, Wu Feng, Li Wen, Sun Jianmin,