کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
795735 1466776 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of fully porous and porous-surfaced Ti-6Al-4V implants by electro-discharge-sintering of spherical Ti-6Al-4V powders in an one-step process
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Fabrication of fully porous and porous-surfaced Ti-6Al-4V implants by electro-discharge-sintering of spherical Ti-6Al-4V powders in an one-step process
چکیده انگلیسی

A single pulse of 0.75–2.0 kJ/0.7g-atomized spherical Ti-6Al-4V powder in two size ranges (100–150 and 150–200 μm), using 150, 300, and 450 μF capacitors, was applied to produce fully porous and porous-surfaced implant compacts. The solid core formed in the center of the compact after discharge was composed of acicular α + β grains and a porous layer consisting of particles connected in three dimensions by necks. Capacitance and input energy are the only controllable discharge parameters even though the heat generated during a discharge is the unique parameter that determines the porosity of the compact. It was shown that electro-discharge-sintering of spherical Ti-6Al-4V powders can efficiently produce fully-porous and porous-surfaced Ti-6Al-4V implants with various porosities in short times (<155 μs) by manipulating the discharge condition such as input energy and capacitance including powder size.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 189, Issues 1–3, 6 July 2007, Pages 219–223
نویسندگان
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