Last edited by Voodookasa
Friday, July 31, 2020 | History

2 edition of study of the D.C. glow discharge in oxygen. found in the catalog.

study of the D.C. glow discharge in oxygen.

Howard Warren Rundle

study of the D.C. glow discharge in oxygen.

by Howard Warren Rundle

  • 392 Want to read
  • 19 Currently reading

Published in [Toronto] .
Written in English

    Subjects:
  • Electric discharges through gases,
  • Oxygen

  • Edition Notes

    ContributionsToronto, Ont. University.
    The Physical Object
    Paginationvii, 125, A7 leaves.
    Number of Pages125
    ID Numbers
    Open LibraryOL18882191M

    A glow-discharge can be sustained in ambient Mars atmosphere, resulting in the dissociation of carbon dioxide molecules into carbon monoxide and oxygen. If the glow-discharge zone is maintained adjacent to a silver permeation membrane, atomic oxygen, produced by the discharge, can be separated from.   With a water anode the discharges are of the glow type as is derived from short-exposure time plasma imaging and electrical characteristics. Additionally, the validity of extrapolated scaling laws of low pressure glow discharge supports these findings. In the case of a water cathode the plasma is filamentary in nature at the water surface.

    The DC glow discharge in oxygen and its mixtures can be utilized in many applications (e.g. plasma etching, sterilization, thin layer deposition or treatment). Oxygen plasma is therefore subject of both numerical and experimental studies. One of the important discharge parameters is the kinetic temperature of the neutral particles which often governs rate constants of various processes such as.   For higher oxygen concentrations, the amount of H 2 and H 2 O in the discharge is not enough to maintain an efficient formation of OH −, so it decreases quickly. In these conditions, O − is formed from the dissociative attachment of O 2 (reaction A 1) and O 2 (a 1 Δ g) (reaction A 4).

    This option allows users to search by Publication, Volume and Page Selecting this option will search the current publication in context. Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this option will search all publications for the Publisher/Society in context.   This study focuses on the surface treatment of polymer films (polypropylene and polyethylene terephthalate) with a remote atmospheric pressure d.c. glow discharge operating in ambient air. The set‐up used can be easily upgraded to industrial dimensions and simulates in‐line processing due to the rotating drum used to mount the samples on.


Share this book
You might also like
Principles of art history writing

Principles of art history writing

Waverley School

Waverley School

The 2000 Import and Export Market for Metallic Salts and Peroxysalts of Inorganic Acids in Yemen (World Trade Report)

The 2000 Import and Export Market for Metallic Salts and Peroxysalts of Inorganic Acids in Yemen (World Trade Report)

Titus Groan

Titus Groan

Tom Browns schooldays.

Tom Browns schooldays.

Opera in seventeenth-century Venice

Opera in seventeenth-century Venice

Legal Research (Legal Skills & Legal Method)

Legal Research (Legal Skills & Legal Method)

Medical ophthalmology

Medical ophthalmology

A Garland for Girls

A Garland for Girls

New applications of membrane processes.

New applications of membrane processes.

Egyptian art, guide to the collections.

Egyptian art, guide to the collections.

The Battle of Ramsaurs Mill

The Battle of Ramsaurs Mill

Nineteenth-century essays

Nineteenth-century essays

Law and the modern city.

Law and the modern city.

Speech of Hon. L. W. Powell, of Kentucky, on the bill to confiscate the property and free the slaves of Rebels

Speech of Hon. L. W. Powell, of Kentucky, on the bill to confiscate the property and free the slaves of Rebels

An essay on the law of bailments

An essay on the law of bailments

Study of the D.C. glow discharge in oxygen by Howard Warren Rundle Download PDF EPUB FB2

Vacuum ultraviolet absorption spectroscopy has been used to measure the concentration of oxygen molecules O2(3∑), metastable singlet O2(1Δ) molecules, atoms, and ozone in a d.c. glow discharge.

The axial electric field, the electronic density, and the gas temperature are also determined. This set of measurements is presented for the positive column of a glow discharge created in a Cited by:   A glow discharge is a plasma formed by the passage of electric current through a gas.

It is often created by applying a voltage between two electrodes in a glass tube containing a low-pressure gas. Study of the D.C. glow discharge in oxygen. book the voltage exceeds a value called the striking voltage, the gas ionization becomes self-sustaining, and the tube glows with a colored light.

The color depends on the gas used. 1. Introduction. The DC glow discharge in oxygen and its mixtures in the pressure range of about hundreds of Pascals can be utilized in miscellaneous applications such as plasma etching or plasma oxidation, thin layer deposition, formation of superconducting materials and sterilization.Therefore a study of properties of oxygen discharge in this pressure range is very important by: 9.

Glow discharge in singlet oxygen Article (PDF Available) in Plasma Physics Reports 29(3) March with 58 Reads How we measure 'reads'. Previously reported measurements of electron energy distribution and ion concentrations in the positive column of an oxygen discharge are used as a basis for discussing the ion equilibrium.

The degree of dissociation is shown to be of order 10% and reasons are advanced for the view that negative ions O - are destroyed in the gas phase by. The DC glow discharge in oxygen and its mixtures can be utilized in miscellaneous applications such as thin layer deposition, plasma etching or sterilization.

The study of properties of such discharges is still a very important topic. The kinetic temperature of the neutral particles is related to important discharge parameters. dc glow discharge were carried out for both pure oxy-gen and oxygen with an SOX admixture at total gas pressures of and torr.

For this purpose, the SOG filled with a working solution was blown through with either oxygen (in this case, there was no chemical reac-tion and the discharge chamber was supplied with pure. the VG glow discharge cell at V, T orr and 4 mA (a), and measured for the same cell at V and 3 mA (b).ability of the models to predict the e ff ect of the cathode.

discharge powers is supported by the study of other research 20, Figure 2b shows the effect of discharge power in oxygen plasma (the term 'oxygen plasma' means a plasma gas that consists of a mixture of helium and oxygen, where oxygen is the reactive gas and helium is the carrier gas).

Similar to the helium plasma. deposition of films from a d-c glow discharge. The scarcity of work in this area has been attributed to poor reproducibility of film composition and contami- nation of the film due to sputtering effects (1, 4). How- ever, the present study shows that good quality tin.

In this work, we have successfully designed and constructed argon D.C glow discharge plasma. A planer D.C diode system consisted of two aluminum electrodes which were designed and constructed to study Paschen's curves at two different interelectrode distances (3cm and cm).

The breakdown voltage (Vb) was. Abstract. To generate atmospheric pressure glow discharge plasma jets (APGDPJs), a novel Hamburger-electrode was proposed. Through the study on electric field distributions, flow field distributions, and characteristics of the discharge and jet, we found that adopting the mode of dielectric barrier discharge with non-uniform thickness of dielectric, it was easy to form the strong electric.

Allan S. Hoffman, Ionizing radiation and gas plasma (or glow) discharge treatments for preparation of novel polymeric biomaterials, Polymers in Medicine, /.

The permeation of oxygen through AgZr over the temperature range of – °C under glow‐discharge conditions has been studied and compared to the permeation of thermally dissociated molecular oxygen. A low‐energy dc glow‐discharge in O 2 has been employed which produced. Electric field distributions and discharge properties of rod-rod contact electrodes were studied under the condition of DBD for the steady generation of atmospheric pressure glow discharge plasma (APGD) in air.

We found that under the effect of the initial electrons generated in a nanometer-scale. This test method describes the analysis of titanium and its alloys by spark atomic emission spectrometry (Spark-AES) and glow discharge atomic emission spectrometry (GD-AES). The titanium specimen to be analyzed may be in the form of a disk, casting, foil, sheet, plate, extrusion or some other wrought form or shape.

investigate the effects of added oxygen (–% v/v) on observed spectra from a Grimm-type glow discharge, generated in argon plasma with a pure iron sample.

Significant changes in the sputter rate and the intensities of atomic lines of the carrier gas and sample in the presence of oxygen are discussed. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link).

We report a simulation study on nitrogen vibrational kinetics N 2 (X 1 Σ g +, v = 0 − 12) in a single nanosecond pulse high voltage discharge in dry-air at a pressure of Torr.

Apart from the usual processes such as vibrational-vibrational exchange and vibrational-translational relaxation, the state-specific vibrational kinetics take into account the electronic-vibrational (E-V) process.

Book Search tips Selecting this option will search all publications across the Scitation platform Glow discharge mass spectrometry study of the deposition of TiO 2 thin films by direct current deposition rate, and ion composition of the discharge as a function of the oxygen partial pressure.

The plasma potential, relative to the ground. A new set-up of a radiofrequency glow discharge spectrometer has been specially designed for glove box adaptation in order to determine light elements in solid nuclear materials such as uranium metal, plutonium metal, mixed uranium and plutonium oxides (MOX) .The glow discharge methods are also simpler than the other methods from a processing point of view.

Two different methods are used to form thin films in a glow discharge method, an a.c. or d.c. glow discharge is initiated between the electrodes, and the electrodes serve as .The influence of up to % volume fraction of oxygen on the argon plasma in a direct current analytical glow discharge was studied for iron, titanium, copper and gold samples using both time-of-flight mass spectrometry and high resolution optical UV-Vis Fourier transform spectrometry.A sudden decrease in sputtering rates, optical emission intensities and ion signals is observed at a current.