Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Valdis Bojarevics"'
Enhancement of Mechanical Properties of Pure Aluminium through Contactless Melt Sonicating Treatment
Autor:
Agnieszka Dybalska, Adrian Caden, William D. Griffiths, Zakareya Nashwan, Valdis Bojarevics, Georgi Djambazov, Catherine E. H. Tonry, Koulis A. Pericleous
Publikováno v:
Materials, Vol 14, Iss 16, p 4479 (2021)
A new contactless ultrasonic sonotrode method was previously designed to provide cavitation conditions inside liquid metal. The oscillation of entrapped gas bubbles followed by their final collapse causes extreme pressure changes leading to de-agglom
Externí odkaz:
https://doaj.org/article/5c4ba7e5f6ad4650b789030c826d4ec2
Autor:
Koulis Pericleous, Valdis Bojarevics, Georgi Djambazov, Agnieszka Dybalska, William D. Griffiths, Catherine Tonry
Publikováno v:
Materials, Vol 12, Iss 21, p 3610 (2019)
A high frequency tuned electromagnetic induction coil is used to induce ultrasonic pressure waves leading to cavitation in alloy melts. This presents an alternative ‘contactless’ approach to conventional immersed probe techniques. The method can
Externí odkaz:
https://doaj.org/article/784a625841034d48ad619cb44e6643d1
Autor:
Marc Dupuis, Valdis Bojarevics
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783031225314
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52acbc08e2ee0e3ede84c75d68f38c1e
https://doi.org/10.1007/978-3-031-22532-1_13
https://doi.org/10.1007/978-3-031-22532-1_13
Enhancement of Mechanical Properties of Pure Aluminium through Contactless Melt Sonicating Treatment
Autor:
C. Tonry, Zakareya Nashwan, Agnieszka Dybalska, William D. Griffiths, A.J. Caden, Valdis Bojarevics, Georgi Djambazov, Koulis Pericleous
Publikováno v:
Materials
Volume 14
Issue 16
Materials, Vol 14, Iss 4479, p 4479 (2021)
Volume 14
Issue 16
Materials, Vol 14, Iss 4479, p 4479 (2021)
A new contactless ultrasonic sonotrode method was previously designed to provide cavitation conditions inside liquid metal. The oscillation of entrapped gas bubbles followed by their final collapse causes extreme pressure changes leading to de-agglom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e96085ed3dfd356c6f8bb50d8b2d0072
https://pubmed.ncbi.nlm.nih.gov/34443002
https://pubmed.ncbi.nlm.nih.gov/34443002
Autor:
Valdis Bojarevics
Numerical modelling has become a primary tool for design and optimization of commercial high amperage aluminium electrolysis cells. The design of industrial cells requires to account for a variety of their individual features: bus-bar network, cell b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c0455ee8f861198b5faccb0f6be58de
https://www.scipedia.com/public/Bojarevics_2021a
https://www.scipedia.com/public/Bojarevics_2021a
Autor:
Valdis Bojarevics
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783030653958
The newly developed modelling technique of alumina dissolution is implemented into the specialised software to treat the industrial cell operation practices of the anode changes. Alumina feeding at regular intervals requires optimization for the feed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a496718b209b63b938603dd2a3b7c7d
https://doi.org/10.1007/978-3-030-65396-5_80
https://doi.org/10.1007/978-3-030-65396-5_80
Autor:
Marc Dupuis, Valdis Bojarevics
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783030653958
Modern aluminium production cells are pushed to the limits of high amperage at the lowest possible energy consumption. The linear MHD stability theory conditions of small amplitude wave perturbation, fixed magnetic field and electric current distribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbbad80cbab75eeea5a456d718f1749e
https://doi.org/10.1007/978-3-030-65396-5_78
https://doi.org/10.1007/978-3-030-65396-5_78
Autor:
Georgi Djambazov, C. Tonry, Christopher Beckwith, Valdis Bojarevics, Koulis Pericleous, Agnieszka Dybalska, William D. Griffiths
Contactless ultrasound is a novel, easily implemented, technique for the Ultrasonic Treatment (UST) of liquid metals. Instead of using a vibrating sonotrode probe inside the melt, which leads to contamination, we consider a high AC frequency electrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81803d88cc9fc9e051199ba3b771580d
Autor:
Valdis Bojarevics, Koulis Pericleous
Purpose The purpose of this paper is to investigate a new type of nozzle which is free from erosion and non-contaminating the outflow metal. Cold crucible melting technique with electromagnetic induction is used to obtain reactive metal castings and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d59716dfa8bf4069cab9ef2398f8373b
Autor:
Marc Dupuis, Valdis Bojarevics
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783030364076
For many years, the authors have been demonstrating their cell modeling tools and cell retrofit skills using those modeling tools to present demonstration cell retrofit studies. One recent series of cell retrofit studies leads to the presentation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e81a11ecb17b11ab4e33e1f631e1034f
https://doi.org/10.1007/978-3-030-36408-3_70
https://doi.org/10.1007/978-3-030-36408-3_70