scholarly journals Characterization of Titanium-Based Films Deposited by DC Sputtering Reactive on AISI 1018 Steel

2022 ◽  
Vol 961 (1) ◽  
pp. 012061
Author(s):  
Neam F. Mohammed ◽  
Bahaa S. Mahdi ◽  
Amin D. Thamir
Keyword(s):  
Hydrogen Permeation ◽  
Anatase Phase ◽  
Steel Structure ◽  
Titanium Layer ◽  
Dc Sputtering ◽  
Steel Aisi ◽  
Coated Surfaces ◽  
Substrate Steel ◽  
Cathode Protection

Abstract The coated surfaces first layer Ti and second layer TiO2 as coating Nanostructured thin films of using DC sputtering on structural steel (AISI l018) and study characterization of coating SEM/EDS inspection shown a clearly perfect incorporation of layer by dc sputtering a granular structure of the layer with a variable hemisphere’s forms varied from 33 to 46 nm in size. X-XRD test complete for specimen indicates was found anatase phase titanium dioxide, the resulted coating layer of the target of Ti powders gives different morphology from the Ti layer alone The Specimens roughness average of coated Ti and TiO2with respectively was 4.831nm, 7.93 nm. Found that titanium layer will show a major part in increasing the bonding with improving the bond between the substrate steel AISI (1018) and the titanium oxide layer. The Vickers hardness increases when the coating with a layer of titanium with an oxygen content of ceramic layer is formed from 192.3 HV to 227 for Ti as well as important increase was detected in the Tio2 coating to 240 HV. In addition, Ti and Tio2 thin layer considered as a good barrier for hydrogen permeation through steel structure especially at cathode protection in pipelines.

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

Hydrogen permeation resistance and characterization of Si–Al and Si–Zr composite sol oxide coating on surface of zirconium hydride

Rare Metals ◽  
2016 ◽  
Vol 36 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Ming Wu ◽  
Yang Chen ◽  
Jia-Qing Peng ◽  
Guo-Qing Yan ◽  
Yu-Pu Sun ◽  
...  
Keyword(s):  
Hydrogen Permeation ◽  
Oxide Coating ◽  
Zirconium Hydride

scholarly journals Synthesis and Characterization of AZO Thin-Films Grown by DC-Sputtering

2018 ◽  
Vol 24 (S1) ◽  
pp. 2238-2239
Author(s):  
J.E. Morales-Mendoza ◽  
A.R. Rivera-Gomez ◽  
A. Duarte-Moller
Keyword(s):  
Thin Films ◽  
Synthesis And Characterization ◽  
Dc Sputtering

Characterization of poly(vinylferrocenium) coated surfaces and their applications in DNA sensor technology

2010 ◽  
Vol 40 (11) ◽  
pp. 2039-2050 ◽  
Author(s):  
Filiz Kuralay ◽  
Arzum Erdem ◽  
Serdar Abacı ◽  
Haluk Özyörük ◽  
Attila Yıldız
Keyword(s):  
Sensor Technology ◽  
Dna Sensor ◽  
Coated Surfaces

Probing the Phase Transition in Nanocrystalline TiO2 Powders by Positron Lifetime (PAL) Technique

2011 ◽  
Vol 319-320 ◽  
pp. 151-159 ◽  
Author(s):  
E.M. Hassan ◽  
Basma A.A. Balboul ◽  
M.A. Abdel-Rahman
Keyword(s):  
Positron Annihilation ◽  
Anatase Phase ◽  
Rutile Phase ◽  
Bet Surface Area ◽  
X Ray Diffraction ◽  
Positron Annihilation Lifetime ◽  
Nanocrystallite Size ◽  
Heat Treated ◽  
Degussa P25

Positron annihilation techniques (PAT) have recently been successfully employed for the characterization of phase transitions in metals and compounds. In the present study, positron annihilation lifetime (PAL) measurements have been carried out on a nanocrystalline titania (TiO2) in the form of powders that had been heat-treated at temperatures ranging from 300 to 1273K. The PAL spectra were analyzed into two lifetime components. The shorter lifetime τ1 (185-300 ps) is attributed to positron annihilation in vacancies and the longer lifetime τ1 (400-580 ps) to positrons in microviods at interfaces. The rutile phase of TiO2 powders was utilized as a reference in order to compare their behavior with the commercially supplied and widely available anatase phase (Degussa P25). The influence of the heat-treatment upon the nanostructure during the transition of the anatase to rutile phase were also investigated by X-ray diffraction (XRD), TEM and BET surface area methods. Understanding of this effect is expected to enhance our knowledge of the morphology and nanocrystallite size of TiO2 powders and their T-dependence, and hence their physical properties.

Effect of Electrical Resistance of TiO2 Layer Characteristics of Dye Sensitized Solar Cell Using Chlorophyll as a Sensitizer

2019 ◽  
Vol 966 ◽  
pp. 422-427
Author(s):  
Nurrisma Puspitasari ◽  
Nurul Yanti Cahaya ◽  
Gatut Yudoyono ◽  
Gontjang Prajitno ◽  
Darminto
Keyword(s):  
Anatase Phase ◽  
Electrical Characterization ◽  
Electrical Energy ◽  
Semiconductor Materials ◽  
Precipitation Method ◽  
Dye Sensitized ◽  
The Third ◽  
Conductive Glass ◽  
Co Precipitation

The third generation of solar cells found by Gratzel in 1991 was called Dye-sensitized Solar Sell (DSSC). DSSC is composed of five parts, namely transparent conductive glass as a substrat; titanium dioxide as a semiconductor materials; chlorophyll as a dye sensitizer, carbon as a catalyst which can convert energy of light into electrical energy. Characterization of DSSC will be carried out in this research covering electrical characterization using RLC meter & I-V meter, optical characterization using Spectrophotometer. TiO2 nanoparticle in in anatase phase having size of 13 nm used in this experiment was synthesized by co-precipitation method. Photoanode with thickness of 10 μm has the lowest resistance compared to the other thickness of 30 μm and 50 μm. The device applying photoanode of 10 μm shows the highest efficiency up to 0.1141 %, while those with other thicknesses respectively gives 0.0378%, and 0,0283%, revealing the efficiency becomes lower with the increasing thickness of TiO2.

Sign in / Sign up

Export Citation Format

Share Document