title: Surface morphology of highly ordered nanotube formed and laser textured beta titanium alloys.
abstract: The aim of the present study is to produce and characterize a well-controlled surface texture on Ti-35Nb-xHf alloys to promote osseointegration. Ti-35Nb-xHf (x = 0, 3, 7 and 15 wt.%) alloys were prepared by arc melting and heat treated for 12 hr at 1000 degrees C in an argon atmosphere and then water quenching. For surface texturing, an amplified Ti: sapphire laser system was used for generating 184 femtosecond (FS, 10(-15) sec) laser pulses with the pulse energy over 30 mJ at a 1 kHz repetition rate with a central wavelength of 800 nm. The nanotube formation was achieved by anodizing a Ti-35Nb-xHf alloy in H3PO4 electrolytes containing 0.8 wt.% NaF at room temperature. The surface morphology of nano/micro structure will enhance osseointegration and cell adhesion.
authors.affiliation: Research Center of Nano-Interface Activation for Biomaterials, Department of Dental Materials, School of Dentistry, Chosun University, Gwangju 501-759, Korea.
authors.forename: Jae-Un
authors.initials: JU
authors.lastname: Kim
authors.forename: Yong-Hoon
authors.initials: YH
authors.lastname: Jeong
authors.forename: Han-Cheol
authors.initials: HC
authors.lastname: Choe
mesh_terms: D000497:Alloys; D007834:Lasers; D008855:Microscopy, Electron, Scanning; D043942:Nanotubes; D013499:Surface Properties; D014961:X-Ray Diffraction
chemical_list: D000497:Alloys; C581938:Ti-35Nb-xHf alloy