60f Muller Jevenois, Carlos [WorldCat Identities]
WorldCat Identities

Muller Jevenois, Carlos

Overview
Works: 15 works in 27 publications in 3 languages and 32 library holdings
Roles: Thesis advisor, Author, Other
Publication Timeline
.
Most widely held works by Carlos Muller Jevenois
Química física I : aplicació de la termodinàmica a sistemes d'interès químic by Josep Claret Bonet( Book )

5 editions published between 2011 and 2013 in Catalan and held by 11 WorldCat member libraries worldwide

Oxidación anódica del mercurio en presencia del ácido barbitúrico by Carles Müller i Jevenois( Book )

3 editions published between 1979 and 1980 in Spanish and held by 3 WorldCat member libraries worldwide

Electrodéposition d'alliages zinc-nickel sur acier et post-traitement anti-corrosion sans chrome by Céline Salacruch( Book )

3 editions published in 2007 in French and held by 3 WorldCat member libraries worldwide

This work deals with the electrodeposition of zinc-nickel alloys from alkaline bath on steel substrate for anti-corrosion applications in the aerospace field. The study of the physicochemical characteristics of deposits, produced from a standard formulation, shows the need to add additives in order to limit the morphological evolution of deposits with the applied current density. An electrochemical study just at the beginning of growing shows that it is possible to determine both the optimal concentrations of metallic cations and the elaboration process of the electrolyte allowing to deposit thick coatings with a nickel content in the range of 13 to 14%mass, with single-phased gamma and uniform microstructure for current densities between 1 and 10 A.dm-2. To evaluate the embrittlement of steel caused by the hydrogen produced during the electrodeposition, mecanical tests are carried out. They underline the benefit of a coating/substrate interface with high nickel content to avoid the diffusion of hydrogen into steel. However, it has been shown that a thermal post-treatment of deshydrogenation is essential to limit the embrittlement of steel. To increase the anti-corrosion properties of zinc-nickel coatings, a study on a finishing deposit without chromium obtained from sol-gel route has been carried out. After studing the influence of experimental parameters on the characteristics of deposited films, we have shown that, for mechanical high-strength steel, sol-gel deposit confers to zinc-nickel coating a better protection against corrosion than a conversion layer containing hexavalent chromium
L'Anoditzat d'alumini com a eina per a la fabricació de nanomaterials 1D by Josep Maria Montero Montero( Book )

2 editions published in 2009 in Catalan and held by 2 WorldCat member libraries worldwide

Funcionalització de superfícies d'alumini anoditzat by Marc Belenguer Rizo( Book )

2 editions published between 2015 and 2016 in Catalan and held by 2 WorldCat member libraries worldwide

Utilitzant una tecnologia implementada prèviament en el grup, en aquesta Tesi s'ha optimitzat el procés de formació de plantilles d'Alumini / Alúmina mitjançant anoditzat d'aliatges 16 1050 i 1080. L'estructura i geometria de les plantilles s'ha optimitzat mitjançant tècniques de reducció de la capa barrera (procés BLT) i d'obertura de porus (procés OBL i atac amb àcid fosfòric). Amb aquestes plantilles s'han obtingut electroquímicament nanoestructures 1D de Ni, Au i Co. En tots els casos s'ha comprovat que les úniques tècniques que permeten obtenir nanodipòsits de qualitat són les polsants, amb polsos complexos que combinen polsos de reducció, d'oxidació i a circuit obert. Amb tots els metalls s'ha estudiat el procés de creixement i s'ha constatat que hi ha importants diferències entre el creixement del níquel i el dels altres dos metalls: mentre el creixement dels nanofils de Ni es produeix uniformement en tots els porus de la plantilla, els de Au i Co es produeixen en feixos distribuïts aleatòriament per tota la superfície. En un estudi paral·lel de les primeres etapes de l'anoditzat, s'ha caracteritzat l'estructura i composició de les protuberàncies que apareixen en l'anomenat procés de cremat (burning) de l'alumini; s'ha comprovat que en tots els casos en què apareixen aquestes protuberàncies l'EDX detecta Fe en el vèrtex. Es tracta, doncs, de les restes d'una partícula inter-metàl·lica AI Fe Si, dissolta en el pretractament de I 'alumini
Codeposició electroless de NiP amb micro- i nanopartícules ceràmiques by Anna Amell i Tosas( Book )

2 editions published between 2010 and 2011 in Catalan and held by 2 WorldCat member libraries worldwide

Depósitos electroquímicos de NiW una alternativa al cromo duro by Itziar García Urrutia( )

2 editions published in 2008 in Spanish and held by 2 WorldCat member libraries worldwide

Obtenció i caracterització d'electrodipòsits de zinc i de zinc-níquel by Gema Barceló Aguiló( )

1 edition published in 1996 in Catalan and held by 1 WorldCat member library worldwide

Nouveaux revêtements nanocomposites Zn/CeO2 : élaboration, caractérisation, propriétés by Loïc Exbrayat( )

1 edition published in 2014 in French and held by 1 WorldCat member library worldwide

The work presented within this thesis aims to better understand the electrodeposition of nanocomposite coatings and to improve their characterization. The system studied is a zinc coating reinforced by nanoparticles of ceria (50 nm in size). Zinc coatings are produced by DC and PC electroplating from an ammonium chloride bath in which the commercial ceria nanoparticles were introduced. Following an optimization stage, specific bath conditions with a alcaline pH and the use of an anionic surfactant have been selected to ensure sufficient stability of the suspension. The influence of nanoparticles on the mechanisms and plating efficiency is studied. A deep characterization of coatings was performed using various techniques (SEM-EDS, XRD, SIMS, GDOES, TEM). This plural approach aims to assess the dispersion of ceria in the composite surface and bulk, which leads to an original and innovative approach in the field of zinc matrix composite coatings. Nanoparticles influence the properties of coatings, increasing hardness up to forty percent. The impact on the corrosion behavior is minor but a slight improvement in long-term immersion is observed. In order to increase more drastically the incorporation of ceria and therefore properties of the resulting coating, change in the morphology of the zinc seems essential. In this context, an approach developed towards pulsed currents was conducted with limited results because of the strong influence of particles on the mechanisms of germination / growth. The use of an alloying element such as nickel is a promising prospect for composite coatings with optimal properties
Electrodéposition d'alliages zinc-nickel sur acier et post-traitement anti-corrosion sans chrome by Céline Salacruch( )

1 edition published in 2008 in French and held by 1 WorldCat member library worldwide

Ces travaux portent sur l'électrodéposition d'alliages zinc-nickel en milieu alcalin sur un substrat en acier en vue d'applications anti-corrosion dans le secteur aéronautique. L'étude des caractéristiques physico-chimiques des dépôts, élaborés à partir d'une formulation standard, montre la nécessité d'ajouter à celle-ci des additifs pour limiter l'évolution morphologique des dépôts en fonction de la densité de courant appliquée. Une étude électrochimique des premiers instants de croissance permet de définir les concentrations en cations métalliques et le mode de préparation optimums de l'électrolyte, permettant de déposer des revêtements épais de teneur en nickel comprise entre 13 et 14%mass, monophasés gamma et de microstructure uniforme sur une plage de densités de courant comprise entre 1 et 10 A.dm-2. Pour évaluer la fragilisation de l'acier occasionnée par l'hydrogène formé au cours de l'électrodéposition, des tests mécaniques de traction sont effectués. Ils mettent en évidence l'efficacité d'une interface dépôt/substrat riche en nickel contre la diffusion de l'hydrogène dans l'acier. Un post-traitement thermique de déshydrogénation est cependant indispensable pour limiter la fragilisation de l'acier. Pour accroître les propriétés anti-corrosion des dépôts ZnNi, une étude est menée sur l'élaboration par voie sol-gel d'un revêtement de finition sans chrome. Après l'étude de l'influence des paramètres opératoires sur les caractéristiques du film déposé, nous montrons que dans le cas d'un dépôt sur un acier à haute limite élastique, celui-ci confère au revêtement ZnNi une meilleure protection contre la corrosion qu'une couche de conversion à base de chrome hexavalent
Química física I by Josep Claret( )

1 edition published in 2013 in Catalan and held by 1 WorldCat member library worldwide

Nuevos recubrimientos para aceros de alta resistencia de aplicación en la industria aeronáutica by Ivet Kosta Pérez( )

1 edition published in 2011 in Spanish and held by 1 WorldCat member library worldwide

Nuevas formulaciones para la obtención industrial de recubrimientos by Eva García Lecina( )

1 edition published in 2003 in Spanish and held by 1 WorldCat member library worldwide

Anodizado de aluminio : nuevas aportaciones a la resolución de problemas tecnológicos : tesis doctoral by Beatriz Gastón García( )

1 edition published in 2011 in Spanish and held by 1 WorldCat member library worldwide

Recobriment de zinc mecànic en acers d'alta resistència by Carlos Muller Jevenois( Book )

1 edition published in 2009 in Spanish and held by 0 WorldCat member libraries worldwide

 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.95 (from 0.90 for Oxidación ... to 1.00 for Recobrimen ...)

Alternative Names
M. Müller Jevenois, Carlos

Muller, Carlos M.

Müller Jevenois, Carles Maria

Languages