Process of Porous Titanium Using a Space Holder
نویسندگان
چکیده
منابع مشابه
Stiffness variation of porous titanium developed using space holder method
The excellent properties of Ti have resulted in its generalised use for bone implants. However, Ti is very stiff in comparison with human cortical bone, and this creates problems of bone weakening and loosening of the implant. This article discusses the mechanical properties (flexural and compressive strength, and stiffness) of porous Ti–6Al–4V specimens developed using the space holder method....
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Porous titanium specimens have been produced by means of the space holder method. Titanium grade 3 (TiCP3) has been used as material and ammonium bicarbonate as spacer. Process parameters (compaction pressure, metal grain size range and spacer volume) influence on porosity morphology and distribution and bending strength has been analysed. The results denote an important loss of strength when c...
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Among the various methods existing to fabricate porous titanium for structural or biomedical applications, the spaceholder approach is particularly useful as it allows a close control of pore size, shape and fraction. In this method, a blend of pure or alloyed titanium powders and space-holder materials are cold-pressed into a preform which is sintered in vacuum. During the early stage of sinte...
متن کاملCreating Aligned, Elongated Pores in Titanium Foams by Swaging of Preforms with Ductile Space-Holder
[*] Dr. Y. Chino Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology Nagoya, 463-8560, Japan E-mail: [email protected] Prof. D. C. Dunand Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois, 60208, USA [**] This research was supported by the US National Science Foundation through gra...
متن کاملFabrication and Compressive Properties of Low to Medium Porosity Closed-Cell Porous Aluminum Using PMMA Space Holder Technique
In recent years, closed-cell porous Aluminum (Al) has drawn increasing attention, particularly in the applications requiring reduced weight and energy absorption capability such as in the automotive and aerospace industries. In the present work, porous Al with closed-cell structure was successfully fabricated by powder metallurgy technique using PMMA as a space holder. The effects of the amount...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Powder and Powder Metallurgy
سال: 2006
ISSN: 0532-8799,1880-9014
DOI: 10.2497/jjspm.53.36