Title :
Titania nanostructures fabricated through anodization of Ti6Al4V alloy
Author :
Li, Yan ; Ding, Dongyan ; Bai, Shuo ; Li, Ming ; Mao, Dali
Author_Institution :
Sch. of Mater. Sci. & Eng., Shanghai Jiao Tong Univ., Shanghai
Abstract :
This work reports on the fabrication and thermal stability of self-organized titania nanostructures on Ti6Al4V alloy. Ti6Al4V sheets were anodized in 1 M NaH2PO4 containing 0.5 wt% HF. And the anodized sheets were heat-treated at different temperatures to test their thermal stability. SEM observations revealed that, for the two-phase Ti6Al4V alloy, there were two different kinds of nanostructures (nanotubes grown at alpha-phase region and inhomogeneous nanopores grown at beta-phase region) formed on the substrate surface. The nanotubes can withstand a high temperature of 650degC without collapsing but sinter to densification at 675-700degC.
Keywords :
aluminium alloys; anodisation; heat treatment; nanoporous materials; self-assembly; thermal stability; titanium compounds; vanadium alloys; SEM; TiAlV; TiO2; alpha-phase region; anodization; beta-phase region; densification; heat treatment; inhomogeneous nanopores; nanotubes; self-organized titania nanostructures; sheets; sintering; temperature 675 degC to 700 degC; thermal stability; Chemical sensors; Hafnium; Hydrogen; Materials science and technology; Nanostructured materials; Nanostructures; Nanotubes; Sensor arrays; Temperature sensors; Thermal stability;
Conference_Titel :
Electronic Packaging Technology & High Density Packaging, 2008. ICEPT-HDP 2008. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-2739-0
Electronic_ISBN :
978-1-4244-2740-6
DOI :
10.1109/ICEPT.2008.4607049
