ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING

Introduction. The electroacoustic application of wear-resistance coatings is studied. The work objective is to obtain a mathematical model of the ultrasonic effect on the formation and development of an electric spark occurring in the process of the electroacoustic sputtering.Materials and Methods....

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Main Authors: S. B. Kudryashev, A. A. Zakalyuzhny
Format: Article
Language:Russian
Published: Don State Technical University 2018-09-01
Series:Advanced Engineering Research
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Online Access:https://www.vestnik-donstu.ru/jour/article/view/1347
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author S. B. Kudryashev
A. A. Zakalyuzhny
author_facet S. B. Kudryashev
A. A. Zakalyuzhny
author_sort S. B. Kudryashev
collection DOAJ
description Introduction. The electroacoustic application of wear-resistance coatings is studied. The work objective is to obtain a mathematical model of the ultrasonic effect on the formation and development of an electric spark occurring in the process of the electroacoustic sputtering.Materials and Methods. The effect of ultrasonic vibrations on the processes occurring during the formation and development of a spark discharge is analyzed; the equations of continuity, energy motion and transfer, with the ultrasonic field contribution are considered. Factors affecting the thermal conductivity and electrical conductivity of strongly ionized gas are studied. Research Results. When obtaining the model, it was assumed that the heat removal from the channel is carried out by a “clear emitter”. Then, for the channel region, a self-similar solution is made: pressure, temperature and density are constant over the cross-section, and velocity is proportional to the radius. A mathematical model that describes the processes occurring in the spark channel with the ultrasonic field energy effect is obtained.Discussion and Conclusions. On the basis of the developed model, it is specified that under the ultrasonic radiation effect, the radius and temperature of the spark channel increase, and conditions of the double ionization under high ultrasonic energy are created.
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institution Kabale University
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publishDate 2018-09-01
publisher Don State Technical University
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spelling doaj-art-2a0ca7fe758b4b1682cfb54f3a080ed32025-08-20T03:57:12ZrusDon State Technical UniversityAdvanced Engineering Research2687-16532018-09-0118330631010.23947/1992-5980-2018-18-3-306-3101322ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYINGS. B. Kudryashev0A. A. Zakalyuzhny1Don State Technical UniversityDon State Technical UniversityIntroduction. The electroacoustic application of wear-resistance coatings is studied. The work objective is to obtain a mathematical model of the ultrasonic effect on the formation and development of an electric spark occurring in the process of the electroacoustic sputtering.Materials and Methods. The effect of ultrasonic vibrations on the processes occurring during the formation and development of a spark discharge is analyzed; the equations of continuity, energy motion and transfer, with the ultrasonic field contribution are considered. Factors affecting the thermal conductivity and electrical conductivity of strongly ionized gas are studied. Research Results. When obtaining the model, it was assumed that the heat removal from the channel is carried out by a “clear emitter”. Then, for the channel region, a self-similar solution is made: pressure, temperature and density are constant over the cross-section, and velocity is proportional to the radius. A mathematical model that describes the processes occurring in the spark channel with the ultrasonic field energy effect is obtained.Discussion and Conclusions. On the basis of the developed model, it is specified that under the ultrasonic radiation effect, the radius and temperature of the spark channel increase, and conditions of the double ionization under high ultrasonic energy are created.https://www.vestnik-donstu.ru/jour/article/view/1347electroacoustic sprayinghardeninghardening coatingshighly concentrated energy flowsultrasoundelectric sparkmathematical modelconductive channelthermodynamicsionization
spellingShingle S. B. Kudryashev
A. A. Zakalyuzhny
ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING
Advanced Engineering Research
electroacoustic spraying
hardening
hardening coatings
highly concentrated energy flows
ultrasound
electric spark
mathematical model
conductive channel
thermodynamics
ionization
title ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING
title_full ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING
title_fullStr ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING
title_full_unstemmed ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING
title_short ULTRASONIC EFFECT ON ELECTRIC SPARK FORMING AND DEVELOPMENT IN ELECTROACOUSTIC SPRAYING
title_sort ultrasonic effect on electric spark forming and development in electroacoustic spraying
topic electroacoustic spraying
hardening
hardening coatings
highly concentrated energy flows
ultrasound
electric spark
mathematical model
conductive channel
thermodynamics
ionization
url https://www.vestnik-donstu.ru/jour/article/view/1347
work_keys_str_mv AT sbkudryashev ultrasoniceffectonelectricsparkforminganddevelopmentinelectroacousticspraying
AT aazakalyuzhny ultrasoniceffectonelectricsparkforminganddevelopmentinelectroacousticspraying