Impact of sputtering power on the properties of Al and Ga co-sputtered ZnO thin films

Gupta, Chandan Ashis; Mangal, Sutanu; Singh, Udai P.

doi:10.1007/s10854-015-2979-2

Cited by 8 publications

(4 citation statements)

References 28 publications

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“…6). The mathematical expression between the corrosion rate (CR) and temperature (T) is generally expressed by the Arrhenius equation [28][29] log CR = (-Ea/2.303R) + log A (6) where CR is the rate of corrosion, A is the frequency factor, E a is the apparent activation energy, R is the molar gas constant and T is the absolute temperature. Fig.…”

Section: Thermodynamic Parameters Determination Of Activation Energymentioning

confidence: 99%

Corrosion Inhibition of Brass in 0.5 M HNO3 by 3-hydroxy-3-(4-chlorophenyl-1-(4-sulphonato (sodium salt)) Phenyl Triazene (HCST): Adsorption and Thermodynamic Study

Soni¹,

Sharma²,

Monika³

et al. 2017

Port. Electrochim. Acta

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The effect of the concentration and nature of novel 3-hydroxy-3-(4-chlorophenyl-1-(4-sulphonato (sodium salt)) phenyl triazene (HCST) on corrosion and dezinfication of 70/30 brass in 0.5 M HNO 3 solution has been investigated by weight loss method. Inhibition efficiency of this corrosion inhibitor was also evaluated at different temperatures ranging from 303 K-333 K. It was observed that HCST showed 88.13% inhibition efficiency at 303 K up to 0.005 M concentration of inhibitor. Weight loss method has been used to analyze the corrosion behavior of the brass in the absence and presence of different concentrations of inhibitor. The corrosion inhibition efficiency increases with increasing concentration of inhibitor and decreases with rise in temperatures. Activation energy (E a ), enthalpy (∆H), entropy (∆S) and Gibbs free energy (∆G) for corrosion process have also been calculated. The adsorption behavior of HCST on brass surface has been found to obey Langmuir adsorption isotherm. Results reveal that hydroxytriazenes can be potential corrosion inhibitors.

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Section: Thermodynamic Parameters Determination Of Activation Energymentioning

confidence: 99%

Corrosion Inhibition of Brass in 0.5 M HNO3 by 3-hydroxy-3-(4-chlorophenyl-1-(4-sulphonato (sodium salt)) Phenyl Triazene (HCST): Adsorption and Thermodynamic Study

Soni¹,

Sharma²,

Monika³

et al. 2017

Port. Electrochim. Acta

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show abstract

“…Several reports indicate that large particles can lead to creep cavitation and subsequent crack propagation. [30][31][32][33][34] Furthermore, with a larger fraction of coarser M 23 C 6 , we can speculate that these particles may not dissolve during welding and consequently coarsen further during PWHT. However, TMT8 shows a relatively small fraction of M 23 C 6 and particles larger than 180 nm.…”

Section: B Martensitic Microstructure After Tmt and Pre-weld Temperingmentioning

confidence: 99%

“…Therefore, the creep-rupture life is expected to increase with the decoration of ferrite grains by carbides and by preventing large carbide particles within the ferrite matrix. [1,14,33] D. Mechanical Heterogeneity of Welds Figure 6 illustrates cross-sectional micrographs of sample plates [N&T see Figure 6(a), TMT9 + temper see Figure 6(b), and TMT8 + temper see Figure 6(c)] with a single-pass GTAW then a standard heat treatment [tempering at 1033 K (760°C) for 2 hours] was applied. The cross-sectional microstructures consist of the weld metal, the heat-affected zone, and the base metal, and there are no significant differences in the configurations among the samples.…”

Section: B Martensitic Microstructure After Tmt and Pre-weld Temperingmentioning

confidence: 99%

“…With carbides decorating the ferrite grains, grain boundary sliding could be minimized for longer period of time, possibly delaying creep deformation. [10,33,36] The carbide formations and free ferrite grain boundaries of TMT9 and N&T may allow for grain boundary sliding. This creates increased stress at the carbide/matrix boundary, which has been shown to produce creep cavitation on this boundary.…”

Section: E Fghaz Precipitate Evolution During Welding and Subsequentmentioning

confidence: 99%

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Toward Improving the Type IV Cracking Resistance in Cr-Mo Steel Weld Through Thermo-Mechanical Processing

Shassere

Yamamoto

Babu

2016

Metall Mater Trans A

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Detailed microstructure characterization of Grade 91 (Modified 9Cr-1Mo, ASTM A387) steel subjected to a thermo-mechanical treatment process was performed to rationalize the cross-weld creep properties. A series of thermo-mechanical processing in the austenite phase region, followed by isothermal aging at temperatures at 973 K to 1173 K (700°C to 900°C), was applied to the Grade 91 steel to promote precipitation kinetics of MX (M: Nb and V, X: C and N) in the austenite matrix. Detailed characterization of the base metals after standard tempering confirmed the presence of fine MX dispersion within the tempered martensitic microstructure in steels processed at/and above 1073 K (800°C). Relatively low volume fraction of M 23 C 6 precipitates was observed after processing at 1073 K (800°C). The cross-weld creep strength after processing was increased with respect to the increase of MX dispersion, indicating that these MX precipitates maintained during weld thermal cycles in the fine-grained heat-affected zone region and thereby contribute to improved creep resistant of welds in comparison to the welds made with the standard ''normalization and tempering'' processes. The steels processed in this specific processing condition showed improved cross-weld creep resistance and sufficient room temperature toughness. The above data are also analyzed based on existing theories of creep deformation based on dislocation climb mechanism.

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Impact of Al and Ga co-doping with different proportion in ZnO thin film by DC magnetron sputtering

Sahoo

Gupta

Singh

2016

J Mater Sci: Mater Electron

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Impact of sputtering power on the properties of Al and Ga co-sputtered ZnO thin films

Cited by 8 publications

References 28 publications

Corrosion Inhibition of Brass in 0.5 M HNO3 by 3-hydroxy-3-(4-chlorophenyl-1-(4-sulphonato (sodium salt)) Phenyl Triazene (HCST): Adsorption and Thermodynamic Study

Corrosion Inhibition of Brass in 0.5 M HNO3 by 3-hydroxy-3-(4-chlorophenyl-1-(4-sulphonato (sodium salt)) Phenyl Triazene (HCST): Adsorption and Thermodynamic Study

Toward Improving the Type IV Cracking Resistance in Cr-Mo Steel Weld Through Thermo-Mechanical Processing

Impact of Al and Ga co-doping with different proportion in ZnO thin film by DC magnetron sputtering

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