Antibacterial characteristics of thermal plasma spray system

2018 ◽  
Vol 26 (3) ◽  
pp. 509-521
Author(s):  
M. Goudarzi ◽  
Sh. Saviz ◽  
M. Ghoranneviss ◽  
A. Salar Elahi
2001 ◽  
Vol 16 (8) ◽  
pp. 2271-2279 ◽  
Author(s):  
D. V. Shtansky ◽  
S. A. Kulinich ◽  
K. Terashima ◽  
T. Yoshida ◽  
Y. Ikuhara

The structure and the crystallography of lithium niobate and lithium niobate–tantalate thin films (0.2–1.0 μm in thickness) with the tantalum composition range of 0 ≤ x ≤ 0.5 grown on (0001) sapphire substrate by thermal plasma spray chemical vapor deposition have been studied by means of cross-sectional high-resolution transmission electron microscopy and x-ray diffraction. The tantalum composition in the films shows a minor effect on the rocking curve full width at half maximum values. The narrowest rocking curve width was obtained for the LiNb0.5Ta0.5O3 film to be as low as 0.25° θ. The films are under compressive strain along the c direction; c- and a-axis lattice parameters are correspondingly smaller and higher than those of the bulk single crystal. Under optimized growth conditions, the LiNbO3 and LiNb1−xTaxO3 films are 97% c-axis oriented. The film out-of-plane orientation changes from the [0001] to the [0112] direction by either decreasing the growth rate or increasing the substrate temperature. Particular attention has been paid to the orientation of individual grains in the partly c-axis-oriented films. The results demonstrate that their orientations are not random and specific orientation relationships are preferred for the film nucleation. The surface of as-received sapphire substrate reveals polishing defects with the well-defined surface ledges of 1–2 nm in height with smooth terraces of 25 nm in width. In the case of columnar growth, the terrace width becomes a limiting factor controlling the lateral crystallite size in the film. Finally, the film growth mechanism is discussed.


2015 ◽  
Vol 15 (9) ◽  
pp. 6651-6662
Author(s):  
C. Adán ◽  
J. Marugán ◽  
R. van Grieken ◽  
K. Chien ◽  
L. Pershin ◽  
...  

2001 ◽  
Vol 390 (1-2) ◽  
pp. 1-6 ◽  
Author(s):  
Hironori Yamamoto ◽  
Sergei A. Kulinich ◽  
Kazuo Terashima

2001 ◽  
Vol 182 (1-2) ◽  
pp. 150-158 ◽  
Author(s):  
S.A. Kulinich ◽  
J. Shibata ◽  
H. Yamamoto ◽  
Y. Shimada ◽  
K. Terashima ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document