Log in

Relevant bibliographies by topics / Glow Discharge-Optical Emission Spectrometry (GD-OES) / Journal articles

To see the other types of publications on this topic, follow the link: Glow Discharge-Optical Emission Spectrometry (GD-OES).

Journal articles on the topic 'Glow Discharge-Optical Emission Spectrometry (GD-OES)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Glow Discharge-Optical Emission Spectrometry (GD-OES).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Schubert, C., V. Hoffmann, A. Kümmel, J. Sinn, M. Härtel, A. Reuther, M. Thomalla, T. Gemming, J. Eckert, and C. Leyens. "Compositional depth profiling of diamond-like carbon layers by glow discharge optical emission spectroscopy." Journal of Analytical Atomic Spectrometry 31, no. 11 (2016): 2207–12. http://dx.doi.org/10.1039/c6ja00251j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Gaiaschi, S., S. Richard, P. Chapon, and O. Acher. "Real-time depth measurement in glow discharge optical emission spectrometry via differential interferometric profiling." Journal of Analytical Atomic Spectrometry 32, no. 9 (2017): 1798–804. http://dx.doi.org/10.1039/c7ja00146k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Sitko, Artur, Marek Szkodo, and Maria Gazda. "The Influence of Gas Mixture in the Glow-Discharge Nitriding Process of Austenitic Stainless Steel on Characteristic of Nitrided Cases." Key Engineering Materials 490 (September 2011): 282–87. http://dx.doi.org/10.4028/www.scientific.net/kem.490.282.

Full text

Abstract:

This paper presents investigations of nitrided cases after the glow-discharge nitriding process. The nitrided cases were obtained by using a different chemical composition of gas mixture at the temperature of 450OC. The glow-discharge nitriding process was carried out on austenitic stainless steel, grade of steel X5CrNi18-10. The chemical composition and phase identification of the nitrided cases were examined by using the glow-discharge optical emission spectrometry (GD-OES) and X-ray diffractometry (XRD)

APA, Harvard, Vancouver, ISO, and other styles

4

Peng, Xiaoxu, Xiaohong Guo, Fen Ge, and Zheng Wang. "Battery-operated portable high-throughput solution cathode glow discharge optical emission spectrometry for environmental metal detection." Journal of Analytical Atomic Spectrometry 34, no. 2 (2019): 394–400. http://dx.doi.org/10.1039/c8ja00369f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Anfone, Alwyn B., and R. Kenneth Marcus. "Radio frequency glow discharge optical emission spectrometry (rf-GD-OES) analysis of solid glass samples." J. Anal. At. Spectrom. 16, no. 5 (2001): 506–13. http://dx.doi.org/10.1039/b009874o.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Zhao, Mingyue, Xiaoxu Peng, Bingcheng Yang, and Zheng Wang. "Ultra-sensitive determination of antimony valence by solution cathode glow discharge optical emission spectrometry coupled with hydride generation." Journal of Analytical Atomic Spectrometry 35, no. 6 (2020): 1148–55. http://dx.doi.org/10.1039/d0ja00009d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Swiderski, Krzysztof, Tomasz Matusiak, Mateusz Wozinski, Arkadiusz Dabrowski, Leszek Golonka, Pawel Pohl, and Piotr Jamroz. "A ceramic microchip with LDA-APGD as the excitation source for OES – a sensitive Hg detecting sensor for microsample analysis." Journal of Analytical Atomic Spectrometry 35, no. 9 (2020): 1880–86. http://dx.doi.org/10.1039/d0ja00011f.

Full text

Abstract:

A novel portable excitation microsource for optical emission spectrometry (OES) based on atmospheric pressure glow discharge with a liquid drop anode (LDA-APGD), generated in a ceramic microchip (mch), was developed.

APA, Harvard, Vancouver, ISO, and other styles

8

Gorska, Monika, and Pawel Pohl. "The application of tetramethylammonium hydroxide for generating atmospheric pressure glow discharge in contact with alkalized flowing liquid cathode solutions – evaluation of the analytical performance." Journal of Analytical Atomic Spectrometry 36, no. 8 (2021): 1768–81. http://dx.doi.org/10.1039/d1ja00148e.

Full text

Abstract:

The analytical performance of flowing liquid cathode atmospheric pressure glow discharge (FLC-APGD), generated in contact with alkalized solutions for the determination of selected elements by optical emission spectrometry (OES) was assessed.

APA, Harvard, Vancouver, ISO, and other styles

9

Payling, Richard, Max Aeberhard, and Daniel Delfosse. "Improved quantitative analysis of hard coatings by radiofrequency glow discharge optical emission spectrometry (rf?GD?OES)." Journal of Analytical Atomic Spectrometry 16, no. 1 (2001): 50–55. http://dx.doi.org/10.1039/b007543o.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Nowak, Wojciech J., and Patrycja Wierzba. "Influence of Plasma Parameters on Light Emission in GD-OES Analysis of Ni–Cu System." Advances in Manufacturing Science and Technology 44, no. 1 (April 28, 2020): 21–27. http://dx.doi.org/10.2478/amst-2019-0004.

Full text

Abstract:

AbstractIn the present work, an effect of plasma-forming parameters on light emission during analysis by glow discharge optical emission spectrometry of Ni–Cu model alloys is studied. To evaluate the effects of plasma-forming parameters on light emission, argon pressure was varied in the range between 600 Pa and 1000 Pa under a constant power of 20 W. Moreover, a variation of power at 20 W and 30 W under a constant Ar pressure of 1000 Pa was investigated. An effect of the element content on light emission was found. Namely, for Cu, a monotonic, non-linear increase in measured light intensity with an increasing Cu content was found. Surprisingly, for pure Ni, a lower light intensity was measured as for Ni90–Cu10 (at.%). Possible reasons causing this was listed as: (i) possible effect of hydrogen, (ii) overlapping of lines for Cu and Ni and (iii) self-absorbing of Ni line at 341.574 nm.

APA, Harvard, Vancouver, ISO, and other styles

11

Bouttemy, Muriel, Solène Béchu, Ben F. Spencer, Pia Dally, Patrick Chapon, and Arnaud Etcheberry. "Combined Pulsed RF GD-OES and HAXPES for Quantified Depth Profiling through Coatings." Coatings 11, no. 6 (June 11, 2021): 702. http://dx.doi.org/10.3390/coatings11060702.

Full text

Abstract:

Chemical characterization at buried interfaces is a real challenge, as the physico-chemical processes operating at the interface govern the properties of many systems and devices. We have developed a methodology based on the combined use of pulsed RF GD-OES (pulsed Radio Frequency Glow Discharge Optical Emission Spectrometry) and XPS (X-ray Photoelectron Spectroscopy) to facilitate the access to deeply buried locations (taking advantage of the high profiling rate of the GD-OES) and perform an accurate chemical diagnosis using XPS directly inside the GD crater. The reliability of the chemical information is, however, influenced by a perturbed layer present at the surface of the crater, hindering traditional XPS examination due to a relatively short sampling depth. Sampling below the perturbed layer may, however, can be achieved using a higher energy excitation source with an increased sampling depth, and is enabled here by a new laboratory-based HAXPES (Hard X-ray PhotoElectron Spectroscopy) (Ga-Kα, 9.25 keV). This new approach combining HAXPES with pulsed RF GD-OES requires benchmarking and is here demonstrated and evaluated on InP. The perturbed depth is estimated and the consistency of the chemical information measured is demonstrated, offering a new route for advanced chemical depth profiling through coatings and heterostructures.

APA, Harvard, Vancouver, ISO, and other styles

12

Arab, Hamed, Gian Luca Chiarello, Elena Selli, Giacomo Bomboi, Alberto Calloni, Gianlorenzo Bussetti, Guglielmo Albani, Massimiliano Bestetti, and Silvia Franz. "Ni-Doped Titanium Dioxide Films Obtained by Plasma Electrolytic Oxidation in Refrigerated Electrolytes." Surfaces 3, no. 2 (April 17, 2020): 168–81. http://dx.doi.org/10.3390/surfaces3020013.

Full text

Abstract:

Porous crystalline Ni-doped TiO2 films were produced using DC plasma electrolytic oxidation in refrigerated H2SO4 aqueous solutions containing NiSO4. The crystalline phase structure consisted of a mixture of anatase and rutile, ranging from ~30 to ~80 wt % rutile. The oxide films obtained at low NiSO4 concentration showed the highest photocurrent values under monochromatic irradiation in the UV-vis range, outperforming pure TiO2. By increasing NiSO4 concentration above a threshold value, the photoelectrochemical activity of the films decreased below that of undoped TiO2. Similar results were obtained using cyclic voltammetry upon polychromatic UV-vis irradiation. Glow discharge optical emission spectrometry (GD-OES) analysis evidenced a sulfur signal peaking at the TiO2/Ti interface. XPS spectra revealed that oxidized Ni2+, S4+ and S6+ ions were included in the oxide films. In agreement with photocurrent measurements, photoluminescence (PL) spectra confirmed that less intense PL emission, i.e., a lower electron-hole recombination rate, was observed for Ni-doped samples, though overdoping was detrimental.

APA, Harvard, Vancouver, ISO, and other styles

13

Laptev, Roman, Anton Lomygin, Dmitriy Krotkevich, Maxim Syrtanov, Egor Kashkarov, Yuriy Bordulev, Krzysztof Siemek, and Andrey Kobets. "Effect of Proton Irradiation on the Defect Evolution of Zr/Nb Nanoscale Multilayers." Metals 10, no. 4 (April 21, 2020): 535. http://dx.doi.org/10.3390/met10040535.

Full text

Abstract:

Nanoscale multilayer coatings (NMCs) with different crystal structures are considered as capable of self-healing after radiation damage due to the recombination of vacancies and interstitials. This work is focused on a defect distribution study of NMCs based on Zr/Nb layers (25/25 nm and 100/100 nm) after proton irradiation. Coatings with a total thickness of 1.05 ± 0.05 µm were irradiated by 900-keV protons using a pelletron-type electrostatic accelerator with an ion current of 2 µA for durations of 60 min to 120 min. The influence of the irradiation effect was studied by X-ray diffraction analysis (XRD), glow discharge optical emission spectrometry (GD–OES), and Doppler broadening spectroscopy using a variable energy positron beam. The results obtained by these methods are compatible and indicate that defect concentration of Zr/Nb NMCs remains unchanged or slightly decreases with increasing irradiation time.

APA, Harvard, Vancouver, ISO, and other styles

14

Duan, Yixiang, Yimu Li, Zhaohui Du, Qinhan Jin, and Jose A. Olivares. "Instrumentation and Fundamental Studies on Glow Discharge—Microwave-Induced Plasma (GD-MIP) Tandem Source for Optical Emission Spectrometry." Applied Spectroscopy 50, no. 8 (August 1996): 977–84. http://dx.doi.org/10.1366/0003702963905259.

Full text

Abstract:

Instrumentation and fundamental studies on glow discharge–microwave-induced plasma (GD-MIP) tandem source are described in this paper. Mutual effects among parameters, vacuum pressure, discharge current, voltage, and microwave power are examined with different cathode materials. Sputtering rates with and without microwave boost are measured under various experimental conditions. The experimental results demonstrate that the introduction of a microwave plasma will significantly decrease the sampling rate. A possible mechanism for the more uniform erosion obtained with microwave plasma boosting is suggested and discussed. Excitation temperatures are measured with the line-pair method and Boltzmann plot. A considerable increase in the excitation temperature (from about 3500 to 4200 K by using the line-pair method) is found with the addition of microwave plasma boosting. A comparison of the behavior of glow discharge alone and the GD-MIP tandem source is made. Significant enhancements in signal intensities are observed. The experimental results suggest that the excitation temperature plays an important role in signal enhancement.

APA, Harvard, Vancouver, ISO, and other styles

15

Nowak, Wojciech J. "The Use of Ion Milling for Surface Preparation for EBSD Analysis." Materials 14, no. 14 (July 16, 2021): 3970. http://dx.doi.org/10.3390/ma14143970.

Full text

Abstract:

An electron backscattered diffraction (EBSD) method provides information about the crystallographic structure of materials. However, a surface subjected to analysis needs to be well-prepared. This usually requires following a time-consuming procedure of mechanical polishing. The alternative methods of surface preparation for EBSD are performed via electropolishing or focus ion beam (FIB). In the present study, plasma etching using a glow discharge optical emission spectrometer (GD-OES) was applied for surface preparation for EBSD analysis. The obtained results revealed that plasma etching through GD-OES can be successfully used for surface preparation for EBSD analysis. However, it was also found that the plasma etching is sensitive for the alloy microstructure, i.e., the presence of intermetallic phases and precipitates such as carbides possess a different sputtering rate, resulting in non-uniform plasma etching. Preparation of the cross-section of oxidized CM247 revealed a similar problem with non-uniformity of plasma etching. The carbides and oxide scale possess a lower sputtering rate than the metallic matrix, which caused formation of relief. Based on obtained results, possible resolutions to suppress the effect of different sputtering rates are proposed.

APA, Harvard, Vancouver, ISO, and other styles

16

Nowak, Wojciech. "Effect of Surface Roughness on Early Stage Oxidation Behavior of Ni-Base Superalloy IN 625." Applied System Innovation 1, no. 3 (August 31, 2018): 32. http://dx.doi.org/10.3390/asi1030032.

Full text

Abstract:

In the present work the effect of surface roughness on oxidation behavior during the early stages of high temperature exposure of Ni-base superalloy IN 625 is described. The surface roughness was described using standard contact profilometer as well as novel method, fractal analysis. It was found that the different surface preparation resulted in a difference in roughness with a parameter increase of at least one order of magnitude for the ground sample as compared with the polished sample. The oxidation test was performed in a horizontal tube furnace. Post-exposure analyses including glow discharge optical emission spectrometry (GD-OES) and scanning electron microscopy (SEM), which revealed that grinding lowers the oxidation kinetics of IN 625 from 1.76 × 10−12 cm2·s−1, obtained for polished sample, to 9.04 × 10−13 cm2·s−1. It was found that surface preparation influences the oxide scale composition and morphology. The hypothesis explaining the mechanism responsible for the changes in oxidation behavior is proposed as well.

APA, Harvard, Vancouver, ISO, and other styles

17

Hodoroaba, Vasile-Dan, Denis Klemm, Uwe Reinholz, Erik Strub, Jörg Röhrich, Wolfgang Bohne, Volker Hoffmann, and Klaus Wetzig. "Potential candidates of certified reference material for determination of hydrogen concentration with glow discharge optical emission spectrometry (GD-OES)—a feasibility study." Journal of Analytical Atomic Spectrometry 23, no. 4 (2008): 460. http://dx.doi.org/10.1039/b717924c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Hoffmann, Volker, Marco Steinert, and Jörg Acker. "Analysis of gaseous reaction products of wet chemical silicon etching by conventional direct current glow discharge optical emission spectrometry (DC-GD-OES)." Journal of Analytical Atomic Spectrometry 26, no. 10 (2011): 1990. http://dx.doi.org/10.1039/c1ja10033e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Brewer, Tim M., and R. Kenneth Marcus. "Non-metal element detection by radio-frequency glow-discharge optical-emission spectrometry (rf-GD-OES) for determination of sol–gel-immobilized nucleotides." Analytical and Bioanalytical Chemistry 386, no. 5 (August 12, 2006): 1357–65. http://dx.doi.org/10.1007/s00216-006-0681-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Malherbe, Julien, Beatriz Fernández, Hervé Martinez, Patrick Chapon, Peter Panjan, and Olivier F. X. Donard. "In-depth profile analysis of oxide films by radiofrequency glow discharge optical emission spectrometry (rf-GD-OES): possibilities of depth-resolved solid-state speciation." Journal of Analytical Atomic Spectrometry 23, no. 10 (2008): 1378. http://dx.doi.org/10.1039/b803713b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Ćurković, Lidija, Helena Otmačić Ćurković, Irena Žmak, Mihone Kerolli Mustafa, and Ivana Gabelica. "Corrosion Behavior of Amorphous Sol–Gel TiO2–ZrO2 Nano Thickness Film on Stainless Steel." Coatings 11, no. 8 (August 19, 2021): 988. http://dx.doi.org/10.3390/coatings11080988.

Full text

Abstract:

In this work, a single-layer TiO2–ZrO2 thin film is deposited on the AISI 316L austenitic stainless steel by the sol–gel process and the dip coating method to improve its corrosion resistance properties. For the sol preparation, titanium isopropoxide and zirconium butoxide are used as the precursors, yttrium acetate hydrate is used for the ZrO2 stabilization, i-propanol as the solvent, nitric acid as the catalyst, acetylacetone as the chelating agent, and the distilled water for the hydrolysis. The deposited films are annealed at 400 °C or 600 °C. Morphology and phase composition of the sol–gel TiO2–ZrO2 films and powders are analyzed by scanning electron microscopy (SEM) equipped with EDX detector and X-ray diffraction (XRD), respectively. The thickness of the sol–gel TiO2–ZrO2 films deposited on the stainless steel is determined by glow discharge optical emission spectrometry (GD-OES). The corrosion behavior of the stainless steel, coated by amorphous films, is evaluated in 3 wt% NaCl and 0.5 mol dm−3 HCl by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. It is found that the sol–gel TiO2–ZrO2 films with the amorphous structure, deposited by the sol–gel process, and calcined at 400 °C significantly enhance the corrosion properties of AISI 316L in both chloride media.

APA, Harvard, Vancouver, ISO, and other styles

22

Brewer, Tim M., W. Clay Davis, and R. Kenneth Marcus. "Plasma parameter and film casting optimization for the determination of particulate matter in a sol–gel matrix by radiofrequency glow discharge optical emission spectrometry (rf-GD-OES)." J. Anal. At. Spectrom. 21, no. 2 (2006): 126–33. http://dx.doi.org/10.1039/b511260e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Godzsák, M., G. Lévai, K. Vad, A. Csik, J. Hakl, T. Kulcsár, and G. Kaptay. "Coloring hot-dip galvanization of steel samples in industrial zinc-manganese baths." Journal of Mining and Metallurgy, Section B: Metallurgy 53, no. 3 (2017): 319–26. http://dx.doi.org/10.2298/jmmb170531028g.

Full text

Abstract:

Colored hot dip galvanization of various steel samples was realized in an industrial bath containing 738 kg of a Zn-Mn liquid alloy at 450?C. Zinc was alloyed in three steps to reach 0.1, 0.15 and 0.2 w% of Mn in liquid zinc, and galvanization of 9 different steel samples was performed in all three baths. The obtained colors change in the sequence blue - yellow - pink - green with increasing the Mn-content of the bath and with increasing the wall thickness of the steel samples. The results are analyzed by Glow-discharge optical emission spectroscopy (GD-OES) and Secondary Neutral Mass Spectrometry (SNMS) techniques. It is shown that depending on the Mn-content and on the wall thickness of the steel the samples are coated by MnO of various thicknesses (in the range between 30 - 230 nm). This layer forms when the samples are removed from the Zn-Mn bath into surrounding air, before the Zn-layer is solidified. Light interference on this thin MnO layer causes the colors of the galvanized coating. Different colors are obtained in different ranges of MnO thicknesses, in accordance with the laws of optics. The minimum Mn-content of liquid Zn is found as 0.025 ? 0.010 m/m% to ensure that the original outer ZnO layer on Zn is converted into the MnO layer. This minimum critical Mn-content is in agreement with chemical thermodynamics.

APA, Harvard, Vancouver, ISO, and other styles

24

Gorska, Monika, Krzysztof Greda, and Pawel Pohl. "On the coupling of hydride generation (HG) with flowing liquid anode atmospheric pressure glow discharge (FLA-APGD) for determination of traces of As, Bi, Hg, Sb and Se by optical emission spectrometry (OES)." Talanta 222 (January 2021): 121510. http://dx.doi.org/10.1016/j.talanta.2020.121510.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Dzimitrowicz, Anna, Piotr Cyganowski, Pawel Pohl, Weronika Milkowska, Dorota Jermakowicz-Bartkowiak, and Piotr Jamroz. "Plant Extracts Activated by Cold Atmospheric Pressure Plasmas as Suitable Tools for Synthesis of Gold Nanostructures with Catalytic Uses." Nanomaterials 10, no. 6 (June 1, 2020): 1088. http://dx.doi.org/10.3390/nano10061088.

Full text

Abstract:

Because cold atmospheric pressure plasma (CAPP)-based technologies are very useful tools in nanomaterials synthesis, in this work we have connected two unique in their classes approaches—a CAPP-based protocol and a green synthesis method in order to obtain stable-in-time gold nanoparticles (AuNPs). To do so, we have used an aqueous Gingko biloba leave extract and an aqueous Panax ginseng root extract (untreated or treated by CAPP) to produce AuNPs, suitable for catalytical uses. Firstly, we have adjusted the optical properties of resulted AuNPs, applying UV/Vis absorption spectrophotometry (UV/Vis). To reveal the morphology of Au nanostructures, transmission electron microscopy (TEM) in addition to energy dispersive X-ray scattering (EDX) and selected area X-ray diffraction (SAED) was utilized. Moreover, optical emission spectrometry (OES) in addition to a colorimetric method was used to identify and determine the concentration of selected RONS occurring at the liquid-CAPP interface. Additionally, attenuated total reflectance Fourier transform-infrared spectroscopy (ATR FT-IR) was applied to reveal the active compounds, which might be responsible for the AuNPs surface functionalization and stabilization. Within the performed research it was found that the smallest in size AuNPs were synthesized using the aqueous P. ginseng root extract, which was activated by direct current atmospheric pressure glow discharge (dc-APGD), generated in contact with a flowing liquid cathode (FLC). On the contrary, taking into account the aqueous G. biloba leave extract, the smallest in size AuNPs were synthesized when the untreated by CAPP aqueous G. biloba leave extract was involved in the Au nanostructures synthesis. For catalytical studies we have chosen AuNPs produced using the aqueous P. ginseng root extract activated by FLC-dc-APGD as well as AuNPs synthesized using the aqueous G. biloba leave extract also activated by FLC-dc-APGD. Those NPs were successfully used as homogenous catalysts for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP).

APA, Harvard, Vancouver, ISO, and other styles

26

HIRANO, Akihiro. "Radio Frequency Glow Discharge Optical Emission Spectroscopy (rf-GD-OES)." Journal of the Japan Society of Colour Material 79, no. 2 (2006): 75–80. http://dx.doi.org/10.4011/shikizai1937.79.75.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Takahara, Hikari, Ryoya Ishigami, Kenji Kodama, Atsushi Kojyo, Tatsuya Nakamura, and Yoshihiro Oka. "Hydrogen analysis in diamond-like carbon by glow discharge optical emission spectroscopy." Journal of Analytical Atomic Spectrometry 31, no. 4 (2016): 940–47. http://dx.doi.org/10.1039/c5ja00447k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Fischer, W. "Surface analysis in glow discharge optical spectrometry (GD-OES layer analysis)." Spectrochimica Acta Part B: Atomic Spectroscopy 47, no. 11 (October 1992): 1339–40. http://dx.doi.org/10.1016/0584-8547(92)80123-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Voronov, M., and V. Hoffmann. "Application of microsecond pulsed glow discharge to modern commercially available optical emission spectrometers for bulk elemental analysis." Journal of Analytical Atomic Spectrometry 33, no. 4 (2018): 663–69. http://dx.doi.org/10.1039/c7ja00424a.

Full text

Abstract:

Microsecond Pulsed Glow Discharge (μs-PGD) was applied to commercially available spectrometers specified for OES elemental analysis with Grimm type sources, in order to have a look at the benefits which PGD can bring for practical bulk analysis.

APA, Harvard, Vancouver, ISO, and other styles

30

Takahara, Hikari, Masahiro Shikano, and Hironori Kobayashi. "Quantification of lithium in LIB electrodes with glow discharge optical emission spectroscopy (GD-OES)." Journal of Power Sources 244 (December 2013): 252–58. http://dx.doi.org/10.1016/j.jpowsour.2013.01.109.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Takahara, Hikari, Hironari Miyauchi, Mitsuharu Tabuchi, and Tatsuya Nakamura. "Elemental Distribution Analysis of LiFePO4/Graphite Cells Studied with Glow Discharge Optical Emission Spectroscopy (GD-OES)." Journal of The Electrochemical Society 160, no. 2 (December 5, 2012): A272—A278. http://dx.doi.org/10.1149/2.061302jes.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Yang, Li, Yuan Yuan, Jiawei Liu, Tao Chen, Aitao Tang, and Fusheng Pan. "The investigation of Mg–Zn diffusion behaviour using Glow Discharge Optical Emission Spectroscopy (GD-OES) characterization method." Vacuum 191 (September 2021): 110358. http://dx.doi.org/10.1016/j.vacuum.2021.110358.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Ivanović, Nikola V. "The Study of Ar I and Ne I Spectral Line Shapes in the Cathode Sheath Region of an Abnormal Glow Discharge." Atoms 7, no. 1 (January 9, 2019): 9. http://dx.doi.org/10.3390/atoms7010009.

Full text

Abstract:

The cathode sheath (CS) region is the most important part of abnormal glow discharge (GD), where various processes relevant for the operation and application occur. The most important parameter of the CS is the distribution of electric field strength E which is of crucial importance for charged particles acceleration, their trajectories, kinetic energies, and collisions with other particles and cathode sputtering. All these processes are relevant for the operation of GD as well as for numerous applications in the field of spectroscopic analysis, plasma etching, thin film deposition, and depth profiling of cathode material. Thus, the importance of non-perturbing technique for E distribution measurement in the CS region was recognized long time ago. Within this article, a simple technique based on standard optical emission spectroscopy (OES) and typical laboratory equipment has been used for E mapping in the CS region of an abnormal glow discharge.

APA, Harvard, Vancouver, ISO, and other styles

34

Yuan, Ping. "Characterization of a Chromium-Free Passivation Coating on Hot Dip Al-Zn Allay Coated Steel Sheets." Advanced Materials Research 634-638 (January 2013): 2931–34. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.2931.

Full text

Abstract:

The hot dip Al-Zn alloy coated steel sheet was passivated with chromium-free passivation solution which adopted the molybdate and acrylic resin as the main film-forming substances. The surface morphology and corrosion performance of the coating were studied experimentally by using glow discharge optical emission spectroscopy(GD-OES), scanning electron microscopy(SEM) and energy-dispersive X-ray spectroscopy(EDS), polarization curves and the neutral salt spray test. The GD-OES and SEM results show that the molybdate-containing thin organic coating is deposited on the substrate compactly and homogeneously without obvious tiny cracks. The test results of corrosion performance show that the corrosion potential and current density of the passive films decrease obviously in comparison with those of the substrate, and the corrosion resistance of the coating is comparable with that of the chromate passivation coating.

APA, Harvard, Vancouver, ISO, and other styles

35

Cho, Won B., Young A. Woo, Hyo J. Kim, Il J. Kim, and Won K. Kang. "Comparison between Direct-Current and Radio-Frequency Gas-Jet-Boosted Glow Discharge Atomic Emission Spectrometry for the Analysis of Steel." Applied Spectroscopy 51, no. 7 (July 1997): 1060–66. http://dx.doi.org/10.1366/0003702971941494.

Full text

Abstract:

Comparisons between direct-current (dc) and radio-frequency (rf) gas jet-boosted glow discharge atomic emission spectrometry (GD-AES) have been made with regard to fundamental characteristics and analytical performance. The study of fundamental characteristics includes the voltage—current relationship; a gas flow rate of 0 mL/min to 800 mL/min and pressures ranging from 3 Torr to 5 Torr on dc bias potential; the sample weight loss; and the emission intensity. The dc-powered glow discharge at 90 mA/450 V and 60 mA/710 V at 5 Torr shows 3 × more sample weight loss than the rf discharge at 40 W. Radio-frequency glow discharge shows a short-term precision of <1% relative standard deviation (RSD) and a long-term stability of <5% RSD for both major and trace element lines. Both rf and dc show calibration curves that are linear over 2–3 orders of magnitude, with a general improvement in linearity from ratioing the signal to an internal standard of the matrix. Further improvement of linearity was possible by correcting the bias potential in the rf glow discharge. Limits of detection (LODs) for rf are tens of parts per billion from many trace elements in low-alloy steel, which is one order of magnitude improvement over those for dc.

APA, Harvard, Vancouver, ISO, and other styles

36

Heikkilä, I., C. Eggertson, M. Randelius, S. Caddeo-Johansson, and D. Chasoglou. "First experiences on characterization of surface oxide films in powder particles by Glow Discharge Optical Emission Spectroscopy (GD-OES)." Metal Powder Report 71, no. 4 (July 2016): 261–64. http://dx.doi.org/10.1016/j.mprp.2016.03.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Anfone, Alwyn B., and R. Kenneth Marcus. "Comparative study of different modes of calibration and quantification in radiofrequency glow discharge optical emission spectroscopy (rf-GD-OES)." Journal of Analytical Atomic Spectrometry 19, no. 3 (2004): 333. http://dx.doi.org/10.1039/b310600d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Müller, M., and P. Hrabě. "Overlay materials used for increasing lifetime of machine parts working under conditions of intensive abrasion." Research in Agricultural Engineering 59, No. 1 (March 6, 2013): 16–22. http://dx.doi.org/10.17221/64/2011-rae.

Full text

Abstract:

We evaluated a degree of the machine part abrasive wear with secondary focus on their hardness. The paper states laboratory results of overlay systems from their wear resistance point of view. Laboratory experiments were carried out by two-body abrasion on bonded abrasive of a P120 granularity. The results proved an increased abrasive wear resistance of martensitic, ledeburitic and stellitic overlays against eleven different original products. The overlay UTP Ledurit 60 reached the optimum values. The GD-OES (Glow Discharge Optical Emission Spectroscopy) method proved the different chemical composition of the overlay from the stated chemical composition of the overlaying electrode.    

APA, Harvard, Vancouver, ISO, and other styles

39

Ghanbari, Niloofar, Thomas Waldmann, Michael Kasper, Peter Axmann, and Margret Wohlfahrt-Mehrens. "Inhomogeneous Degradation of Graphite Anodes in Li-Ion Cells: A Postmortem Study Using Glow Discharge Optical Emission Spectroscopy (GD-OES)." Journal of Physical Chemistry C 120, no. 39 (September 22, 2016): 22225–34. http://dx.doi.org/10.1021/acs.jpcc.6b07117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Luesaiwong, Wandee, and R. Kenneth Marcus. "Depth-resolved analysis of Ni–P plated aluminium hard disks by radiofrequency glow discharge optical emission spectroscopy (rf-GD-OES)." J. Anal. At. Spectrom. 19, no. 3 (2004): 345–53. http://dx.doi.org/10.1039/b309396d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Luesaiwong, Wandee, and R. Kenneth Marcus. "Lithium-fusion sample preparation method for radio frequency glow discharge optical emission spectroscopy (rf-GD-OES): analysis of coal ash specimens." Microchemical Journal 74, no. 1 (February 2003): 59–73. http://dx.doi.org/10.1016/s0026-265x(02)00154-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Narojczyk, Jerzy, and Dmitrij Morozow. "Modification of TiN coatings by Ion Implantation." Acta Mechanica et Automatica 11, no. 3 (September 1, 2017): 190–93. http://dx.doi.org/10.1515/ama-2017-0028.

Full text

Abstract:

AbstractThe high-speed steel HS 6-5-2 cutting inserts coated with TiN were subjected to ion implantation with both silicon (dose 2×1017Si+/cm2) and silicon with nitrogen ions (dose (1+1)×1017(Si++ N+)/cm2) on the subsurface layer of the rake face. Microhardness was examined before and after ion implantation. The composition and structural properties of the subsurface layer were examined by Glow Discharge Optical Emission Spectroscopy (GD-OES). The turning tests of 40H construction steel with the use of the cutting inserts implanted and non-implanted were performed. During the tests the two components of the net cutting force (the main cutting force Fcand feed force Ff) as well as the wear parameters VB on the major flankalong with the surface roughness (Ra) were measured. The implanted inserts exhibited higher durability compared to non-implanted ones.

APA, Harvard, Vancouver, ISO, and other styles

43

Lötter, Steven James, Walter Purcell, and Johann T. Nel. "Development of an Affordable GD-OES Support Matrix for Analysis of Non-Conducting Zirconium Powders." Advanced Materials Research 1019 (October 2014): 393–97. http://dx.doi.org/10.4028/www.scientific.net/amr.1019.393.

Full text

Abstract:

<span><span style="font-family: Times New Roman; font-size: medium;" face="Times New Roman" size="3"> </span> <p><span style="font-family: Times New Roman;" face="Times New Roman"><span style="font-size: medium;" size="3">Glow Discharge Optical Emission Spectroscopy (GD-OES) is an analytical technique mainly used in the analysis of solid metallic samples.</span><span style="font-size: medium;" size="3"> </span><span style="font-size: medium;" size="3">The technique requires a conductive sample as the analyte serves as the cathode when generating the glow discharge plasma. GD-OES is useful for both bulk quantification and depth profiling of thin layers of conducting materials. </span></span><span style="font-family: Times New Roman; font-size: medium;" face="Times New Roman" size="3">The objective of this study was to develop a new sample support matrix for the preparation of conductive pressed pellets suitable for the analysis of non-conducting materials with GD-OES. In previous work non-conducting powders, such as uranium oxide, have been mixed with fine metal powders such as copper, silver or tantalum. Another solution has been to use a quick setting, conductive thermoplastic, such as diallyl phthalate impregnated with copper, as support. Both of these methods are, however, expensive and fairly time consuming. </span><span style="font-family: Times New Roman; font-size: medium;" face="Times New Roman" size="3">Graphite, a cheap, readily available conductive powder, proved not to form a strong enough pellet to withstand the conditions required during the GD analysis. This limitation was overcome by the addition of a binding agent, bakelite, to produce a relatively cheap, conductive matrix for the analysis of non-conducting powders. </span><span style="font-family: Times New Roman;" face="Times New Roman"><span style="font-size: medium;" size="3">Spectroscopically pure zirconium oxide was used as a reference material and mixed with various quantities of graphite and bakelite powder. Two distinct regions of linearity were obtained. Samples with less than six percent zirconium yielded a gradient of 0.0011 with an R</span><span style="font-size: small;" size="2">2</span><span style="font-size: medium;" size="3"> value of 0.9949. Samples with higher zirconium content yielded a gradient of 0.0042 with an R</span><span style="font-size: small;" size="2">2</span><span style="font-size: medium;" size="3"> value of 0.9991. These results indicate the suitability of this sample matrix for analysis of zirconium materials by GD-OES.</span></span></p>

APA, Harvard, Vancouver, ISO, and other styles

44

Greda, Krzysztof, Konrad Kurcbach, Katarzyna Ochromowicz, Tomasz Lesniewicz, Piotr Jamroz, and Pawel Pohl. "Determination of mercury in mosses by novel cold vapor generation atmospheric pressure glow microdischarge optical emission spectrometry after multivariate optimization." Journal of Analytical Atomic Spectrometry 30, no. 8 (2015): 1743–51. http://dx.doi.org/10.1039/c5ja00170f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Vlcak, Petr, Frantisek Cerny, Zdenek Weiss, Stanislav Danis, Josef Sepitka, Zdenek Tolde, and Vladimir Jech. "The Effect of Nitrogen Ion Implantation on the Surface Properties of Ti6Al4V Alloy Coated by a Carbon Nanolayer." Journal of Nanomaterials 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/475758.

Full text

Abstract:

The ion beam assisted deposition (IBAD) method was chosen for preparing a carbon thin film with a mixing area on a substrate of Ti6Al4V titanium alloy. Nitrogen ions with energy 90 keV were used. These form a broad ion beam mixing area at the interface between the carbon film and the substrate. We investigated the chemical composition by the glow discharge optical emission spectroscopy (GD-OES) method and the phases by the X-ray diffraction (XRD) method. The measured concentration profiles indicate the mixing of the carbon film into the substrate, which may have an effect on increasing the adhesion of the deposited film. The nanohardness and the coefficient of friction were measured. We found that the modified samples had a markedly lower coefficient of friction even after damage to the carbon film, and they also had higher nanohardness than the unmodified samples. The increased nanohardness is attributed to the newly created phases that arose with ion implantation of nitrogen ions.

APA, Harvard, Vancouver, ISO, and other styles

46

Pan, Xiaohan, and R. Kenneth Marcus. "Direct analysis of glass powder samples by radio frequency glow discharge atomic emission spectrometry (rf-GD-AES)." Mikrochimica Acta 129, no. 3-4 (September 1998): 239–50. http://dx.doi.org/10.1007/bf01244747.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Swiderski, Krzysztof, Anna Dzimitrowicz, Piotr Jamroz, and Pawel Pohl. "Influence of pH and low-molecular weight organic compounds in solution on selected spectroscopic and analytical parameters of flowing liquid anode atmospheric pressure glow discharge (FLA-APGD) for the optical emission spectrometric (OES) determination of Ag, Cd, and Pb." Journal of Analytical Atomic Spectrometry 33, no. 3 (2018): 437–51. http://dx.doi.org/10.1039/c7ja00374a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Nishimoto, Akio, and Kunishige Nakazawa. "Active Screen Plasma Nitriding of Titanium Alloy Using Titanium Double Screen." Materials Science Forum 891 (March 2017): 11–17. http://dx.doi.org/10.4028/www.scientific.net/msf.891.11.

Full text

Abstract:

The low hardness and poor tribological performance of titanium alloys restrict their wide applications in automotive fields. Nitriding is widely used to improve tribological properties, wear resistance, and corrosion resistance of steel and titanium alloys. Plasma nitriding is becoming increasingly popular because of its high nitrogen potential, short treatment time, and low environmental impact. Recently, considerable interest has been devoted to alternative nitriding methods such as active screen plasma nitriding (ASPN). In this study, a Ti-6Al-4V titanium alloy was nitrided by ASPN using a titanium double screen in order to investigate the effect of applying the double screen on the microstructure of the nitriding layer. The Ti-6Al-4V sample was placed on the sample stage in a cathodic potential. A titanium double screen was mounted on the cathodic stage around the sample stage. The sample was treated for 1-25 hours at 600oC under 200 Pa in 75% N2 + 25% H2 atmosphere. After nitriding, glow discharge optical emission spectroscopy (GD-OES) revealed that the thickness of the nitriding layer composed of TiN tended to increase with increasing the nitriding time. The Vickers microhardness of the sample surface nitrided for 25 hours reached approximately 1300 HV. Ball-on-disk wear test revealed that a wear loss of nitrided sample considerably decreased than that of untreated sample.

APA, Harvard, Vancouver, ISO, and other styles

49

Franz, Silvia, Hamed Arab, Andrea Lucotti, Chiara Castiglioni, Antonello Vicenzo, Federico Morini, and Massimiliano Bestetti. "Exploiting Direct Current Plasma Electrolytic Oxidation to Boost Photoelectrocatalysis." Catalysts 10, no. 3 (March 14, 2020): 325. http://dx.doi.org/10.3390/catal10030325.

Full text

Abstract:

In this study, we report an investigation of the photoelectrochemical activity of TiO2 films formed by DC plasma electrolytic oxidation (PEO) at a variable potential in a sulfuric acid electrolyte at 0 and 25 °C. The surface morphology was mainly determined by the oxide-forming potential. X-Ray Diffraction and Raman analyses showed that the relative amount of the anatase and rutile phases varied from 100% anatase at low potential (110–130 V) to 100% rutile at high potential (180–200 V), while mixed-phase oxide films formed at intermediate potential. Correspondingly, the band gap of the TiO2 films decreased from about 3.20 eV (pure anatase) to 2.94 eV (pure rutile) and was red-shifted about 0.1 eV by reducing the electrolyte temperature from 25 °C to 0 °C. Glow-Discharge Optical Emission Spectroscopy (GD-OES) and X-ray Photoelectron Spectroscopy (XPS) analyses evidenced S-containing species located preferentially close to the TiO2/Ti interface. The photoelectrochemical activity was assessed by measuring the incident photon-to-current efficiency (IPCE) under Ultraviolet C (UV-C) irradiation, which showed a non-gaussian normal trend as a function of the PEO cell potential, with maximum values exceeding 80%. Photoelectrocatalytic activity was assessed by decolorization of model solutions containing methylene blue. Photoanodes having higher IPCE values showed faster decolorization kinetics.

APA, Harvard, Vancouver, ISO, and other styles

50

Rivero, Pedro, Juan Maeztu, Calos Berlanga, Adrian Miguel, José Palacio, and Rafael Rodriguez. "Hydrophobic and Corrosion Behavior of Sol-Gel Hybrid Coatings Based on the Combination of TiO2 NPs and Fluorinated Chains for Aluminum Alloys Protection." Metals 8, no. 12 (December 18, 2018): 1076. http://dx.doi.org/10.3390/met8121076.

Full text

Abstract:

In this work, layers of a sol-gel hybrid matrix doped with metal oxide nanoparticles (TiO2 NPs) have been deposited on flat samples of AA6061-T6 aluminum alloy using the dip-coating technique, with the aim of obtaining coatings with better anti-corrosive and hydrophobic properties. Two different organic modified silica alkoxides, namely 3-(glycidyloxypropyl)trimethoxysilane (GPTMS) and methyltriethoxysilane (MTEOS), have been used for an adequate entrapment of the metal oxide nanoparticles. In addition, a fluorinated metal-alkoxide precursor has also been added to the hybrid matrix in order to improve the hydrophobic behavior. The experimental results corroborate that the presence of these TiO2 NPs play an important role in the development of the sol-gel hybrid coatings. The water contact angle (WCA) measurements, as well as pencil hardness tests indicate that TiO2 NPs make a considerable increase in the resultant hydrophobicity possible, with better mechanical properties of the coatings. The coating thickness has been measured by cross-section scanning electron microscopy (SEM). In addition, a glow discharge optical emission spectroscopy (GD-OES) analysis has been carried out in order to corroborate the adequate entrapment of the TiO2 NPs into the sol-gel coatings. Finally, potentiodynamic polarization tests and electrochemical impedance spectroscopy (EIS) have been performed in order to evaluate the corrosion resistance of the coatings. All the results provide insights into the efficacy of the developed sol-gel hybrid coatings for anticorrosive purposes with good mechanical properties.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!