TY - JOUR
T1 - Characterization of hydroxyapatite and titanium coatings sputtered on Ti-6Al-4V substrate
AU - Ding, Shinn Jyh
AU - Ju, Chien Ping
AU - Lin, Jiin Huey Chern
PY - 1999/7/1
Y1 - 1999/7/1
N2 - A series of thin (<10 μm), single-layered HA/Ti coatings were deposited on Ti-6Al-4V substrate using a radio frequency magnetron-assisted sputtering system. The adhesion strength, microstructure, and chemistry of the coatings were characterized. Experimental results showed that higher Ti contents in targets or coatings resulted in higher deposition rates. When Ti was added the highly crystalline structure of monolithic HA coating was largely disrupted and the coating became amorphous-like. The highly crystalline structure of the monolithic Ti coating was also disrupted by introducing small amounts of Ca, P, and O into the coating. The HA/Ti coatings had quite uniform thicknesses and appeared smooth, dense, and well bonded to the substrate. A scanning electron microscope with an energy dispersive spectroscopy system showed that monolithic HA, 95HA/5Ti, 25HA/75Ti, and 50HA/50Ti coatings had the lowest Ca/P ratios while the 75HA/25Ti coating had the highest. The adhesion strengths of all coatings were between 60 and 80 MPa.
AB - A series of thin (<10 μm), single-layered HA/Ti coatings were deposited on Ti-6Al-4V substrate using a radio frequency magnetron-assisted sputtering system. The adhesion strength, microstructure, and chemistry of the coatings were characterized. Experimental results showed that higher Ti contents in targets or coatings resulted in higher deposition rates. When Ti was added the highly crystalline structure of monolithic HA coating was largely disrupted and the coating became amorphous-like. The highly crystalline structure of the monolithic Ti coating was also disrupted by introducing small amounts of Ca, P, and O into the coating. The HA/Ti coatings had quite uniform thicknesses and appeared smooth, dense, and well bonded to the substrate. A scanning electron microscope with an energy dispersive spectroscopy system showed that monolithic HA, 95HA/5Ti, 25HA/75Ti, and 50HA/50Ti coatings had the lowest Ca/P ratios while the 75HA/25Ti coating had the highest. The adhesion strengths of all coatings were between 60 and 80 MPa.
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U2 - 10.1002/(SICI)1097-4636(19990305)44:3<266::AID-JBM5>3.0.CO;2-4
DO - 10.1002/(SICI)1097-4636(19990305)44:3<266::AID-JBM5>3.0.CO;2-4
M3 - Article
C2 - 10397929
AN - SCOPUS:0033525405
SN - 0021-9304
VL - 44
SP - 266
EP - 279
JO - Journal of Biomedical Materials Research
JF - Journal of Biomedical Materials Research
IS - 3
ER -