Influence of oxygen percentage on in vitro bioactivity of zirconia thin films obtained by RF magnetron sputtering

La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) electrolyte thin films were fabricated on La0.7Sr0.3Cr0.5Mn0.5O2.75 (LSCM) porous anode substrates by Radio Frequency (RF) magnetron sputtering method. The compatibility between LSGM and LSCM was examined. Microstructures of LSGM thin films fabricated were observed by scanning electron microscope (SEM). The effect of substrate temperature on LSGM thin films was clarified by X-ray Diffraction (XRD). Deposition rate increases firstly at the range of 50°C~150°C, and then decreases at the range of 150°C ~300°C. After annealing, perovskite structure with the same growth orientation forms at different substrate temperature. Crystallite size decreases at first, to the minimum point at 150°C, then increases as substrate temperature rises.

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Synthesis of GaN nanorods through ammoniating Ga2O3/BN thin films deposited by RF magnetron sputtering

Journal of Crystal Growth ◽

10.1016/j.jcrysgro.2006.04.012 ◽

2006 ◽

Vol 292 (2) ◽

pp. 294-297 ◽

Cited By ~ 12

Author(s):

Yuxin Wu ◽

Chengshan Xue ◽

Huizhao Zhuang ◽

Deheng Tian ◽

Yi’an Liu ◽

...

Keyword(s):

Thin Films ◽

Magnetron Sputtering ◽

Rf Magnetron Sputtering

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Calcium Phosphate Coating on Blast-Treated Titanium Implants by RF Magnetron Sputtering

Materials Science Forum ◽

10.4028/www.scientific.net/msf.631-632.211 ◽

2009 ◽

Vol 631-632 ◽

pp. 211-216 ◽

Cited By ~ 3

Author(s):

Kyosuke Ueda ◽

Takayuki Narushima ◽

Takashi Goto ◽

T. Katsube ◽

Hironobu Nakagawa ◽

...

Keyword(s):

Calcium Phosphate ◽

Magnetron Sputtering ◽

Bonding Strength ◽

Rf Magnetron Sputtering ◽

Titanium Implants ◽

Calcium Phosphate Coating ◽

Phosphate Coating ◽

Coating Films

Calcium phosphate coating films were fabricated on Ti-6Al-4V plates and screw-type implants with a blast-treated surface using radiofrequency (RF) magnetron sputtering and were evaluated in vitro and in vivo. Amorphous calcium phosphate (ACP) and oxyapatite (OAp) films obtained in this study could cover the blast-treated substrate very efficiently, maintaining the surface roughness. For the in vitro evaluations of the calcium phosphate coating films, bonding strength and alkaline phosphatase (ALP) activity were examined. The bonding strength of the coating films to a blast-treated substrate exceeded 60 MPa, independent of film phases except for the film after post-heat-treatment in silica ampoule. When compared with an uncoated substrate, the increase in the ALP activity of osteoblastic SaOS-2 cells on a calcium phosphate coated substrate was confirmed by a cell culture test. The removal torque of screw-type Ti-6Al-4V implants with a blast-treated surface from the femur of Japanese white rabbit increased with the duration of implantation and it was statistically improved by coating an ACP film 2 weeks after implantation. The in vitro and in vivo studies suggested that the application of the sputtered ACP film as a coating on titanium implants was effective in improving their biocompatibility with bones.

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