کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1430010 987192 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal oxidation of vanadium-free Ti alloys: An X-ray photoelectron spectroscopy study
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Thermal oxidation of vanadium-free Ti alloys: An X-ray photoelectron spectroscopy study
چکیده انگلیسی

In the present work, X-ray photoelectron spectroscopy (XPS) was used to study the surface chemical composition of three alloys for biomedical applications: Ti–7Nb–6Al, Ti–13Nb–13Zr and Ti–15Zr–4Nb. The surface of these alloys was modified by annealing in air at 750 °C for different times with the aim of developing an oxide thick layer on top. The evolution of surface composition with annealing time was studied by XPS, and compared with the composition of the native oxide layer present on the samples before annealing. Two different oxidation trends were observed depending on the alloying elements and their corresponding diffusion kinetics, which give rise to different chemical species at the topmost layers. These results were linked with an evaluation of the biological response of the alloys by bringing them in contact with human peripheral blood mononuclear cells (PBMC).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 30, Issue 3, 6 April 2010, Pages 465–471
نویسندگان
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