title: Porous low modulus Ti40Nb compacts with electrodeposited hydroxyapatite coating for biomedical applications.
abstract: Porous ß-type non-toxic Ti40Nb alloy was prepared by compaction of mechanically alloyed powder mixed with NaCl or Mg particles as space-holder material. The compacts with porosity of 36-80% demonstrated a very low Young's modulus of ~1.5-3 GPa and compression strength of ~10-35 MPa, which is suitable for potential implant material application. Porous samples were electrochemically covered with hydroxyapatite. The influence of the deposition time and of the electrolyte concentrations on the morphology of the hydroxyapatite coating was studied. It is demonstrated that a homogenous coating of hydroxyapatite crystals with different shape and size can be obtained on the surface of the porous samples.
authors.affiliation: Leibniz Institute for Solid State and Materials Research IFW Dresden, P.O. Box 270016,D-01171 Dresden, Germany. k.zhuravleva@ifw-dresden.de
authors.forename: K
authors.initials: K
authors.lastname: Zhuravleva
authors.forename: A
authors.initials: A
authors.lastname: Chivu
authors.forename: A
authors.initials: A
authors.lastname: Teresiak
authors.forename: S
authors.initials: S
authors.lastname: Scudino
authors.forename: M
authors.initials: M
authors.lastname: Calin
authors.forename: L
authors.initials: L
authors.lastname: Schultz
authors.forename: J
authors.initials: J
authors.lastname: Eckert
authors.forename: A
authors.initials: A
authors.lastname: Gebert
mesh_terms: D000497:Alloys / Q000737:chemistry*; D020811:Biomedical Technology / Q000379:methods*; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D019245:Compressive Strength; D017886:Durapatite / Q000737:chemistry*; D055119:Elastic Modulus; D004595:Electroplating / Q000379:methods*; D008274:Magnesium / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D016062:Porosity; D012965:Sodium Chloride / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D014961:X-Ray Diffraction; D055114:X-Ray Microtomography
chemical_list: D000497:Alloys; D020099:Coated Materials, Biocompatible; C583184:Ti-40Nb alloy; D012965:Sodium Chloride; D017886:Durapatite; D008274:Magnesium