کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1340 81 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of compositionally and structurally graded Ti–TiO2 structures using laser engineered net shaping (LENS)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Fabrication of compositionally and structurally graded Ti–TiO2 structures using laser engineered net shaping (LENS)
چکیده انگلیسی

Novel structures with functional gradation in composition and structure were successfully made in Ti–TiO2 combination using laser engineered net shaping. The addition of fully dense, compositionally graded TiO2 ceramic on porous Ti significantly increased the surface wettability and hardness. The graded structures with varying concentrations of TiO2 on the top surface were found to be non-toxic and biocompatible. In addition, the higher wettability of surfaces with TiO2 can enhance their ability to form chemisorbed lubricating films, which can potentially lower the friction coefficient against ultrahigh molecular weight polyethylene liner, thus reducing its wear rate. These unitized structures with open porosity on one side and hard, low friction surface on the other side can eliminate the need for multiple parts with different compositions for load-bearing implants such as total hip prostheses.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Biomaterialia - Volume 5, Issue 5, June 2009, Pages 1831–1837
نویسندگان
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