ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Recent trends in bio technology have resulted in the need for accurate fabrication of porestructure of sophisticated porous materials used in advanced applications such as substrates for tissuegrowth, and various kinds of implants. Control of pore size is important for promoting growth ofblood vessels and adequate fluid flow. In the present study, an attempt has been made to fabricatefunctionally porous structures using titanium, including an internally controlled three-dimensional(3-D) fractal structure. A novel 3-D modeling method that combines rapid prototyping with sparkplasma sintering (SPS) is proposed, which enables us to control the internal porous structure.Titanium powder-tape or sheet is sintered or cut by a pulsed Nd:YAG laser to form 2-D fractalcross-sections. These 2-D layers are temporarily laminated in a carbon mold, being then jointed by theSPS method to maintain the internal porous structure. Process parameters for the sheet laminationmethod have extensively been investigated
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1711.pdf
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