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Parametric Analysis of Electrochemical Discharge Drilling on Soda-Lime Glass Material Using Taguchi L27 Orthogonal Array Method

REFERENCES [1] Dwaipayan, D., Titas, N., Asish, B. “Parametric Study for Wire Cut Electrical Discharge Machining of Sintered Titanium”, Strojnícky časopis – Journal of Mechanical Engineering 69 (1), pp. 17 – 38, 2019 . DOI: 10.2478/scjme-2019-0002 [2] Pawar, P., Ballav, R., Kumar, A. “Review on material removal technology of soda-lime glass material”, Indian Journal of Science and Technology 10(8), pp. 1 – 7, 2017 . DOI: 10.17485/ijst/2017/v10i8/102698 [3] Goud, M., Sharma, A. K., Jawalkar, C. “A review on material removal mechanism in

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Chemical durability of soda-lime glass in aqueous acid solutions

Abstract

Acid dissolution of soda-lime glass was rigorously investigated. Aqueous solutions containing 1N HNO3, HCl, H2SO4 and CH3COOH were used to measure the durability of the soda-lime glass samples. Flame emission spectrometry (FES) and UV-visible absorption spectroscopy were used to determine the concentration of Na+, K+, Ca2+ and Si4+ ions in solutions after dissolution. Weight loss analyses and microstructural characterization were used to evaluate the compositional changes of the glass samples.

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Optimization of deposition temperature of SILAR Cu-rich CuInS2 thin films

Abstract

CuInS2 (CIS) is studied widely as a promising absorber material for high efficient and low cost thin film solar cells. CIS thin films are prepared on soda lime glass substrates using Successive Ionic Layer Adsorption and Reaction (SILAR) technique at different deposition temperatures (40 to 70 °C). The structural, compositional and optical properties are studied with x-ray diffractometer, energy dispersive x-ray analyzer and spectrophotometer. The influence of the deposition temperature on the properties of CIS thin films is discussed in this paper in detail.

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Preparation of ITO films using a spray pyrolysis solution containing an acetylacetone chelating agent

Abstract

Indium tin oxide (ITO) films were deposited on soda-lime glass substrates by the spray pyrolysis method using a spray solution of InCl3·3H2O as a precursor, SnCl4·5H2O as a dopant and acetylacetone (AcAcH) as a chelating agent. The effect of the addition of AcAcH to the spray solution on the surface morphology of the ITO film was investigated. The surface quality of the film prepared from the spray solution with AcAcH was better than that without AcAcH. The ITO film with the thickness of 230 nm, using the spray solution with AcAcH, exhibited the lowest resistivity of 4.75 × 10−4 Ω·cm and higher optical transmittance of 85 %, respectively.

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Structural and optical characterization of Cu doped ZnO thin films deposited by RF magnetron sputtering

Abstract

Cu doped transparent ZnO thin films (CZO) were sputtered on soda lime glass substrates at three different distances between substrate and target. The effects of copper doping on the structural and optical properties were investigated by X-ray diffraction (XRD) and transmittance measurements. The XRD results indicated that CZO thin films have a preferential crystallographic orientation along the hexagonal wurtzite (002) axis. With increasing the distance between substrate-target, from 4 cm to 8 cm, the refractive index of the CZO films decreased. In the visible wavelength region, the average value of the transmittance was above 80%. Thus, significant changes in the structural and optical properties have occurred due to the decrease of the distance between the target-substrate and the residual compressive stress at the film-substrate interface arising during deposition.

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Surface microstructure, optical and electrical properties of spray pyrolyzed PbS and Zn-PbS thin films for optoelectronic applications

Abstract

Lead sulphide (PbS) and zinc- doped lead sulphide (Zn-PbS) thin films were prepared by chemical spray pyrolysis on soda lime glass substrates at a temperature of 250 °C. Precursors were prepared from chemical reagents including zinc acetate, lead acetate and thiourea. The deposited films thicknesses and elemental composition were studied by Rutherford backscattering spectroscopy (RBS); the percentages of Pb and S were estimated as 40.58 % and 59.42 %, respectively, while for the Zn-doped sample, the percentages of Zn, Pb and S were respectively 4.84 %, 44.57 % and 50.59 %. Morphological studies revealed that the films were continuous and the particles were uniformly distributed across the substrate surface. AFM probe revealed nanostructured films with particles densely distributed across the substrates surfaces with incorporation of Zn2+. Statistical distribution of the grains over a specific projected area indicated average growth height of about 47 nm. Optical studies indicated that the transmission in visible light region of Zn-PbS thin film was superior to that of the undoped sample. Interband transition of both PbS and Zn-PbS films is directly allowed and their energy band gaps were found to be 0.43 eV and 1.45 eV, respectively. Electrical characterization showed that both films are of p-type conductivity with surface resistivity values of the order of 104 Ω·cm.

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Optical and structural properties of nanostructured copper oxide thin films as solar selective coating prepared by spray pyrolysis method

Abstract

Copper (II) oxide thin films were prepared by spray pyrolysis method on soda-lime glass substrates using copper acetate precursor solution. Influence of substrate temperature on structural and optical properties was investigated. Structural analysis of these layers were carried out by X-ray diffraction (XRD). Single phase nature and high crystallinity of CuO nanostructures were observed on XRD patterns. The general appearance of the films was uniform and black in color. FT-IR transmittance spectra confirmed the results from the XRD study. Selective solar absorber coatings of copper oxide (CuO) on stainless steel substrates was prepared by spray pyrolysis method. Effect of deposition temperature on optical properties of thin films was investigated. Optical parameters, absorbance (α) and emittance (α) were evaluated from reflectance data. It can be deduced that the porous structure, such as a light traps, can greatly enhance absorbance, while the composition, thickness and roughness of thin films can greatly influence the emissivity. Single phase nature and high crystallinity of CuO nanostructures were observed by XRD patterns. Solar absorbance of thin films were in the range of 85 % to 92 %.

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Characterization of TiO2 films obtained by a wet chemical process

Abstract

TiO2 has an easily tunable bandgap and a great absorption dye ability being widely used in many fields and in a number of fascinating applications. In this study, a wet chemical route, particularly a sol gel method using spin-coating is adopted to deposit TiO2 thin films onto soda lime glass and silicon substrates. TiO2 films were prepared by using an alcoholic solution of analytical reagent grade TiCl4 as titanium precursor at various experimental conditions. The accent was put on the conditions of preparation (spin time, spin speed, precursor concentration, number of coating layers etc), doping and on the post-deposit treatment namely the drying and the crystallization. The results showed a strong dependence on the drying temperature and on the temperature and duration of the crystallization. We found that the solution preparation and its color are important for getting a reproducible final product. The Raman spectra recorded at room temperature, showed the characteristic peaks of anatase which appear at 143 and around 396 cm−1. These peaks confirm the presence of TiO2.

The X-ray diffraction (XRD) was used to identify the crystalline characteristic of TiO2 while the chemical states and relative amounts of the main elements existing in the samples were investigated by X-ray Photoelectron Spectroscopy (XPS). The morphology of the samples was visualized by AFM. We show by this work the feasibility to obtain different nanostructured TiO2 by changing the concentration of the solution. Photocatalytic activity of TiO2 films was evaluated. Rhodamine B is a recalcitrant dye and TiO2 was successfully tested for its oxidation. An abatement of 60% was obtained under sunlight for an initial concentration of 10 mg/l.

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Glass Building Elements - Technical Aspects of Safe Usage in the Structure

Intelligent Systems and Computing 692, 970-979. DOI: https://doi.org/10.1007/978-3-319-70987-1_105 Sundaram, B.M., Tippur, H.V., 2018. Dynamic fracture of soda-lime glass: A full-field investigation of crack initiation, propagation and branching . Journal of the Mechanics and Physics of Solids 120, 132-153. DOI: https://doi.org/10.1016/j.jmps.2018.04.010 Vedrtnam, A., Pawar, S.J., 2017. Laminated plate theories and fracture of laminated glass plate - A rewiew . Engineering Fracture Mechanics, 186, 316–330. DOI: https://doi.org/10.1016/j.engfracmech.2017

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Multicriteria Analysis of Glass Waste Application

Environmental Chemical Engineering 2014:2(3):1767–1775. doi:10.1016/j.jece.2014.03.016 [4] Olofinnade O. M., Ede A. N., Ndambuki J. M. Sustainable green environment through utilization of waste soda-lime glass for production of concrete. Journ al of Materials and Environmental Sciences 2017:8(4):1139–1152. [5] Albatayneh A., Alterman D., Page A., Moghtaderi B. The Significance of Temperature Based Approach Over the Energy Based Approaches in the Buildings Thermal Assessment. Environmental and Cl imate Technologies 2017:19:39–50. doi:10.1515/rtuect-2017

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