scholarly journals Elaboration and characterization of TiO2 coatings produced by micro-arc oxidation process

2019 ◽  
Vol 564 ◽  
pp. 012042
Author(s):  
M M Dicu ◽  
L I Neblea ◽  
P C Dicu
Keyword(s):  
Oxidation Process ◽  
Micro Arc Oxidation ◽  
Tio2 Coatings

Preparation and characterization of porous bioceramic layers on pure titanium surfaces obtained by micro-arc oxidation process

2017 ◽  
Vol 123 (3) ◽  
Author(s):  
Chi-Sheng Chien ◽  
Yu-Chien Hung ◽  
Ting-Fu Hong ◽  
Chung-Chun Wu ◽  
Tsung-Yuan Kuo ◽  
...  
Keyword(s):  
Oxidation Process ◽  
Pure Titanium ◽  
Porous Bioceramic ◽  
Micro Arc Oxidation ◽  
Titanium Surfaces

Preparation and Characterization of Zn-Containing Hydroxyapatite/TiO2 Composite Coatings on Ti Alloys

2011 ◽  
Vol 685 ◽  
pp. 367-370 ◽  
Author(s):  
Min Qi ◽  
Da Yi Yang ◽  
Jing Ying Zhang ◽  
Hong Jun Ai
Keyword(s):  
Adhesion Strength ◽  
Composite Coatings ◽  
Energy Dispersive Spectrometer ◽  
Sol Gel ◽  
X Ray Diffraction ◽  
Zn Content ◽  
Micro Arc Oxidation ◽  
Gel Technique ◽  
Bacteria Resistance

In order to improve the osteoblast growth and bacteria resistance, Zn-containing hydroxyapatite (Zn-HA) and titanium oxide (TiO2) composite coatings were prepared to improve binding between coating and Ti substrate. TiO2 film was prepared on the surface of Ti by micro-arc oxidation (MAO) and Zn-HA coating was deposited on TiO2 using sol–gel technique. Phase structure, composition and microstructure of the surface coatings were analyzed by X-ray diffraction (XRD) and Energy Dispersive Spectrometer (EDS), respectively. The adhesion strength between the coatings with different Zn content was measured by tensile testing. The results showed that there was no significant influence of Zn content on adhesion strength between coating and Ti substrate.

scholarly journals Characterization of plasma-induced phenol advanced oxidation process in a DBD reactor

2011 ◽  
Vol 55 (1) ◽  
pp. 13811 ◽  
Author(s):  
E. Marotta ◽  
E. Ceriani ◽  
V. Shapoval ◽  
M. Schiorlin ◽  
C. Ceretta ◽  
...  
Keyword(s):  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Dbd Reactor

scholarly journals SEM and EDS Characterization of Porous Coatings Obtained On Titaniumby Plasma Electrolytic Oxidation in Electrolyte Containing Concentrated Phosphoric Acid with Zinc Nitrate

2017 ◽  
Vol 17 (2) ◽  
pp. 41-54 ◽  
Author(s):  
K. Rokosz ◽  
T. Hryniewicz ◽  
K. Pietrzak ◽  
W. Malorny
Keyword(s):  
Phosphoric Acid ◽  
Plasma Electrolytic Oxidation ◽  
Pure Titanium ◽  
Zinc Nitrate ◽  
Porous Coatings ◽  
Electrolytic Oxidation ◽  
Micro Arc Oxidation ◽  
Plasma Electrolytic ◽  
Peo Coatings

AbstractThe SEM and EDS results of porous coatings formed on pure titanium by Plasma Electrolytic Oxidation (Micro Arc Oxidation) under DC regime of voltage in the electrolytes containing of 500 g zinc nitrate Zn(NO3)2·6H2O in 1000 mL of concentrated phosphoric acid H3PO4at three voltages, i.e. 450 V, 550 V, 650 V for 3 minutes, are presented. The PEO coatings with pores, which have different shapes and the diameters, consist mainly of phosphorus, titanium and zinc. The maximum of zinc-to-phosphorus (Zn/P) ratio was found for treatment at 650 V and it equals 0.43 (wt%) | 0.20 (at%), while the minimum of that coefficient was recorded for the voltage of 450 V and equaling 0.26 (wt%) | 0.12 (at%). Performed studies have shown a possible way to form the porous coatings enriched with zinc by Plasma Electrolytic Oxidation in electrolyte containing concentrated phosphoric acid H3PO4with zinc nitrate Zn(NO3)2·6H2O.

Characterization of a Thermal Oxidation Process on SiC Preamorphized by Ar Ion Implantation

2004 ◽  
Vol 457-460 ◽  
pp. 1357-1360 ◽  
Author(s):  
Antonella Poggi ◽  
Roberta Nipoti ◽  
Sandro Solmi ◽  
M. Bersani ◽  
L. Vanzetti
Keyword(s):  
Ion Implantation ◽  
Thermal Oxidation ◽  
Oxidation Process ◽  
Thermal Oxidation Process

scholarly journals Preparation and Characterization of Black Micro-Arc Oxidation Films

2016 ◽  
Vol 32 (9) ◽  
pp. 2271-2279 ◽  
Author(s):  
Jing-Ying BAI ◽  
◽  
Si-Zhen LI ◽  
Da-Jiang ZHENG ◽  
Li-Gong ZHANG ◽  
...  
Keyword(s):  
Micro Arc Oxidation

KARBON LİF ÜRETİMİNDE POLİAKRİLONİTRİL ELYAFLARIN TERMAL OKSİDASYONU

2021 ◽  
Vol 8 (17) ◽  
pp. 160-170
Author(s):  
Mahbubor Rahman ◽  
Tuba DEMIREL ◽  
Ismail KARACAN
Keyword(s):  
Thermal Stability ◽  
Aqueous Solution ◽  
Thermal Oxidation ◽  
Oxidation Process ◽  
Ammonium Persulfate ◽  
Oxidation Reactions ◽  
Carbon Yield ◽  
Thermal Stability Of ◽  
Pan Fibers

Thermal oxidation of polyacrylonitrile (PAN) fibers was accomplished at temperatures up to 250°C for different oxidation times. Chemical integration of PAN fibers with an aqueous solution of ammonium persulfate was performed before starting thermal oxidation. The results recommend that ammonium persulfate integration enhanced the oxidation reactions of the PAN fibers and resulting in enhanced thermal stability. Ammonium persulfate impregnation followed by the oxidation process in the air environment leads to significant deviations in the characteristics of PAN fibers. To perform structural characterization of the raw and ammonium persulfate (APS) incorporated and stabilized samples, XRD, IR-spectroscopy, TGA was executed in this study. Investigation of the XRD and infrared spectroscopy outcomes recommended quick aromatization reactions with growing oxidation periods. The TGA traces indicated a comparative enhancement in the thermal stability of the PAN fibers by the increased carbon yield with the rise of the oxidation time. The overall findings recommend that ammonium persulfate incorporation was very influential in stimulating the oxidation process.

scholarly journals Method for measuring the micro-discharges temperature in the micro-arc oxidation process

2019 ◽  
Vol 1393 ◽  
pp. 012083 ◽  
Author(s):  
P E Golubkov ◽  
E A Pecherskaya ◽  
D V Artamonov ◽  
J V Shepeleva
Keyword(s):  
Oxidation Process ◽  
Micro Arc Oxidation
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