Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys

Detalhes bibliográficos
Autor(a) principal: Prasad,S.
Data de Publicação: 2000
Outros Autores: Marinho,F.A., Santana,F.S.M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400007
Resumo: Optimization and control of an electrodeposition process for depositing boron-containing amorphous metallic layer of cobalt-molybdenum alloy onto a cathode from an electrolytic bath having cobalt sulfate, sodium molybdate, boron phosphate, sodium citrate, 1-dodecylsulfate-Na, ammonium sulfate and ammonia or sulfuric acid for pH adjustments has been studied. Detailed studies on bath composition, pH, temperature, mechanical agitation and cathode current density have led to optimum conditions for obtaining satisfactory alloy deposits. These alloys were found to have interesting properties such as high hardness, corrosion resistance, wear resistance and also sufficient ductility. A voltammetric method for automatic monitoring and control of the process has been proposed.
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spelling Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloysElectrodepositionelectrolytic bathscobalt-molybdenum amorphous alloysOptimization and control of an electrodeposition process for depositing boron-containing amorphous metallic layer of cobalt-molybdenum alloy onto a cathode from an electrolytic bath having cobalt sulfate, sodium molybdate, boron phosphate, sodium citrate, 1-dodecylsulfate-Na, ammonium sulfate and ammonia or sulfuric acid for pH adjustments has been studied. Detailed studies on bath composition, pH, temperature, mechanical agitation and cathode current density have led to optimum conditions for obtaining satisfactory alloy deposits. These alloys were found to have interesting properties such as high hardness, corrosion resistance, wear resistance and also sufficient ductility. A voltammetric method for automatic monitoring and control of the process has been proposed.Brazilian Society of Chemical Engineering2000-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400007Brazilian Journal of Chemical Engineering v.17 n.4-7 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000400007info:eu-repo/semantics/openAccessPrasad,S.Marinho,F.A.Santana,F.S.M.eng2001-03-16T00:00:00Zoai:scielo:S0104-66322000000400007Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2001-03-16T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
title Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
spellingShingle Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
Prasad,S.
Electrodeposition
electrolytic baths
cobalt-molybdenum amorphous alloys
title_short Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
title_full Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
title_fullStr Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
title_full_unstemmed Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
title_sort Control and optimization of baths for electrodeposition of Co-Mo-B amorphous alloys
author Prasad,S.
author_facet Prasad,S.
Marinho,F.A.
Santana,F.S.M.
author_role author
author2 Marinho,F.A.
Santana,F.S.M.
author2_role author
author
dc.contributor.author.fl_str_mv Prasad,S.
Marinho,F.A.
Santana,F.S.M.
dc.subject.por.fl_str_mv Electrodeposition
electrolytic baths
cobalt-molybdenum amorphous alloys
topic Electrodeposition
electrolytic baths
cobalt-molybdenum amorphous alloys
description Optimization and control of an electrodeposition process for depositing boron-containing amorphous metallic layer of cobalt-molybdenum alloy onto a cathode from an electrolytic bath having cobalt sulfate, sodium molybdate, boron phosphate, sodium citrate, 1-dodecylsulfate-Na, ammonium sulfate and ammonia or sulfuric acid for pH adjustments has been studied. Detailed studies on bath composition, pH, temperature, mechanical agitation and cathode current density have led to optimum conditions for obtaining satisfactory alloy deposits. These alloys were found to have interesting properties such as high hardness, corrosion resistance, wear resistance and also sufficient ductility. A voltammetric method for automatic monitoring and control of the process has been proposed.
publishDate 2000
dc.date.none.fl_str_mv 2000-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322000000400007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.17 n.4-7 2000
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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