Abstract:
:In this study, biocompatibility of 17-4 PH stainless steel foam for biomedical implant applications was investigated. 17-4 PH stainless steel foams having porosities in the range of 40-82% with an average pore size of around 600 μm were produced by space holder-sintering technique. Sintered foams were precipitation hardened for times of 1-6 h at temperatures between 450-570 °C. Compressive yield strength and Young's modulus of aged stainless steel foams were observed to vary between 80-130 MPa and 0.73-1.54 GPa, respectively. Pore morphology, pore size and the mechanical properties of the 17-4 PH stainless steel foams were close to cancellous bone. In vitro evaluations of cytotoxicity of the foams were investigated by XTT and MTT assays and showed sufficient biocompatibility. Surface roughness parameters of the stainless steel foams were also determined to characterize the foams.
journal_name
Biomed Mater Engjournal_title
Bio-medical materials and engineeringauthors
Mutlu I,Oktay Edoi
10.3233/BME-2011-0671subject
Has Abstractpub_date
2011-01-01 00:00:00pages
223-33issue
4eissn
0959-2989issn
1878-3619pii
C322282810367054journal_volume
21pub_type
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