Single and double stage sintering of mechanically alloyed powder for nanostructured Ti6Al4V foams usable in cancellous scaffolds

Autor:	A Ebadifar, M Alizadeh, Sayed Khatiboleslam Sadrnezhaad, M Aryana, N Hassanzadeh Nemati
Rok vydání:	2013
Předmět:	Materials science Metallurgy Titanium alloy Sintering Nanoparticle Microstructure Porous network medicine.anatomical_structure Distilled water medicine General Materials Science Composite material Cancellous bone Double stage
Zdroj:	International Heat Treatment and Surface Engineering. 7:43-48
ISSN:	1749-5156 1749-5148
DOI:	10.1179/1749514813z.00000000052
Popis:	Mechanical alloying and sintering were used to fabricate nanostructured Ti6Al4V scaffolds of highly controllable pore geometry and fully interconnected porous network. Elemental powders were milled for different periods of time (10, 20, 30, 40 and 60 h), mixed with 40–60 vol.-% of 200–400 μm cuboidal NaCl, compacted at 500–600 MPa and sintered according to single or double stage heat treatment regimes at 790 and 950°C under vacuum. After sintering, the samples were soaked in distilled water to washout the NaCl. Foamy microstructures were obtained showing well shaped biopores and fragmentary embedded micropores. The shape of initial NaCl was copied into the biopores which had highly interconnected architecture considered suitable for cancellous bone tissue adherence and cell culture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a4deec56dc49cf06289f304e76c08c7c https://doi.org/10.1179/1749514813z.00000000052 Zobrazit plný text záznamu