Microstructure, mechanical properties and cytocompatibility of stable beta Ti-Mo-Ta sintered alloys.
We have synthesized titanium-based alloys containing molybdenum and tantalum elements by powder metallurgy. The microstructure, the residual porosity and the mechanical properties of the sintered Ti-Mo and Ti-Ta-Mo alloys were investigated by using optical and electronic microscopy, X-ray diffraction, microhardness and compression tests. The cytocompatibility of the different alloys was evaluated by the assessment of bone cell density, migration and adhesion after 14 days incubation. All the alloys present a high ductility and an excellent cytocompatibility, which make these materials useful for medical implants.
Delvat
E
E
INSA Rennes, UMR CNRS 6226 Sciences Chimiques de Rennes/Chimie-Métallurgie, 20 avenue des Buttes de Coësmes, F-35043 Rennes cedex, France.
Gordin
D M
DM
Gloriant
T
T
Duval
J L
JL
Nagel
M D
MD
D000497:Alloys / Q000737:chemistry* / Q000494:pharmacology*; D001672:Biocompatible Materials / Q000737:chemistry / Q000494:pharmacology; D002478:Cells, Cultured; D055119:Elastic Modulus; D006244:Hardness; D006801:Humans; D008422:Materials Testing; D010006:Osteoblasts / Q000166:cytology* / Q000187:drug effects*; D013499:Surface Properties; D013635:Tantalum / Q000737:chemistry* / Q000494:pharmacology*
D000497:Alloys; D001672:Biocompatible Materials; C525450:titanium molybdenum alloy; D013635:Tantalum