TY - JOUR
T1 - Mechanical properties and antibacterial behaviors of TaN-(Ag,Cu) nanocomposite thin films after annealing
AU - Hsieh, J. H.
AU - Yeh, T. H.
AU - Li, C.
AU - Chang, S. Y.
AU - Chiu, C. H.
AU - Huang, C. T.
PY - 2013/8/15
Y1 - 2013/8/15
N2 - TaN-(Cu,Ag) nanocomposite films were deposited by reactive co-sputtering on Si(001) and M2 tool steels. The films were then annealed using RTA (Rapid Thermal Annealing) at 200. °C-400. °C to induce the nucleation and growth of metal particles in TaN matrix and on film surface. After deposition, structures, surface morphologies, and mechanical properties were analyzed, the samples were tested for their anti-wear and anti-bacterial behaviors against Gram-negative Escherichia coli. It is found that the antibacterial efficiency against E. coli can be much improved for TaN-(Cu,Ag), comparing with that of TaN-Ag or TaN-Cu films. This could be attributed to large number of surfaced Ag and Cu particles. The tribological properties could also be improved, and are similar to TaN-Ag under a normal load of 5. N. In general, the annealing temperature for TaN-(Cu,Ag) can be as low as 200. °C. Being annealed at this temperature, the film still shows good antibacterial and anti-wear behaviors.
AB - TaN-(Cu,Ag) nanocomposite films were deposited by reactive co-sputtering on Si(001) and M2 tool steels. The films were then annealed using RTA (Rapid Thermal Annealing) at 200. °C-400. °C to induce the nucleation and growth of metal particles in TaN matrix and on film surface. After deposition, structures, surface morphologies, and mechanical properties were analyzed, the samples were tested for their anti-wear and anti-bacterial behaviors against Gram-negative Escherichia coli. It is found that the antibacterial efficiency against E. coli can be much improved for TaN-(Cu,Ag), comparing with that of TaN-Ag or TaN-Cu films. This could be attributed to large number of surfaced Ag and Cu particles. The tribological properties could also be improved, and are similar to TaN-Ag under a normal load of 5. N. In general, the annealing temperature for TaN-(Cu,Ag) can be as low as 200. °C. Being annealed at this temperature, the film still shows good antibacterial and anti-wear behaviors.
KW - Antibacterial behaviors
KW - Mechanical properties
KW - Nanocomposite thin films
KW - TaN-(Cu,Ag)
UR - http://www.scopus.com/inward/record.url?scp=84879793127&partnerID=8YFLogxK
U2 - 10.1016/j.surfcoat.2012.07.022
DO - 10.1016/j.surfcoat.2012.07.022
M3 - Article
AN - SCOPUS:84879793127
SN - 0257-8972
VL - 228
SP - S116-S119
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
IS - SUPPL.1
ER -