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Auteur Mohamed El hadi Said |
Documents disponibles écrits par cet auteur (2)
Affiner la recherche Interroger des sources externesEtude du pouvoir inhibiteur des aminés sur la corrosion d'un acier en milieu acide / Mohamed El hadi Said
Titre : Etude du pouvoir inhibiteur des aminés sur la corrosion d'un acier en milieu acide Type de document : texte imprimé Auteurs : Mohamed El hadi Said, Auteur ; Aissa Chibani, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2009 Importance : 98 f. Note générale : 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : chimie analytique et physique:Electrochimie Acier Acide Adsorption Amines Inhibiteur Index. décimale : 540 Chimie et sciences connexes Résumé : The effect of amino compounds as inhibitors of steel corrosion in hydrochloric 1M. The study was carried out by the method of weight loss and potentiodynamic polarisation curves. The inhibition efficiency increases with the concentration of the inhibitor, achieving 95% of the indole of the concentration 5.10-3M. Exposure measures polarization essentially act as mixed inhibitors. The adsorptions of these inhibitors on the surface of the steel turn out for the isotherm adsorption of Temkin. The values of activation energy and free energy of adsorption of the studied compounds are calculated to study the mechanism of the inhibition of the corrosion. The study temperature indicates an increase in inhibition efficiency with the temperature and the activation energies decreased in the presence of the inhibitor, the temperature range studied is 293 - 313 ° K. finally studied the effect of salts such as (NaCl, Na2SO4, Na3PO4, NaNO3, Na2CrO4) on the effectiveness of the inhibitor. Diplôme : Magistère En ligne : ../theses/chimie/SAI5399.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=3654 Etude du pouvoir inhibiteur des aminés sur la corrosion d'un acier en milieu acide [texte imprimé] / Mohamed El hadi Said, Auteur ; Aissa Chibani, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2009 . - 98 f.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : chimie analytique et physique:Electrochimie Acier Acide Adsorption Amines Inhibiteur Index. décimale : 540 Chimie et sciences connexes Résumé : The effect of amino compounds as inhibitors of steel corrosion in hydrochloric 1M. The study was carried out by the method of weight loss and potentiodynamic polarisation curves. The inhibition efficiency increases with the concentration of the inhibitor, achieving 95% of the indole of the concentration 5.10-3M. Exposure measures polarization essentially act as mixed inhibitors. The adsorptions of these inhibitors on the surface of the steel turn out for the isotherm adsorption of Temkin. The values of activation energy and free energy of adsorption of the studied compounds are calculated to study the mechanism of the inhibition of the corrosion. The study temperature indicates an increase in inhibition efficiency with the temperature and the activation energies decreased in the presence of the inhibitor, the temperature range studied is 293 - 313 ° K. finally studied the effect of salts such as (NaCl, Na2SO4, Na3PO4, NaNO3, Na2CrO4) on the effectiveness of the inhibitor. Diplôme : Magistère En ligne : ../theses/chimie/SAI5399.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=3654 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SAI/5399 SAI/5399 Thèse Bibliothèque principale Thèses Disponible
Titre : Etude du pouvoir des inhibiteurs amines sur la corrosion des aciers en milieu acide. Type de document : texte imprimé Auteurs : Mohamed El hadi Said, Auteur ; Aissa Chibani, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 148 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ChimieTags : Chimie: Chimie analytique et physique inhibiteur de corrosion acier imidazole quinoléine inhibitor of corrosion steel imidazolium quinolinium موانع التأكل الفولاذ الاميدازوليوم الكينولينيوم Index. décimale : 540 Chimie et sciences connexes Résumé :
The use inhibition is one of the most practical method for the protection of metals against corrosion, especially in acidic media. Most of the well known inhibitors are organic compounds containing heteroatoms such as nitrogen, sulphur and oxygen. they act by adsorption on the metal surface. heterocyclic compounds, such as salt imidazol and quinoline are expected to be useful for this purpose. This work is devoted to the corrosion inhibition of steel in 0.5 M sulfuric acid medium by two family the salt organic from: imidazolium and quinolinium. the first part of this work studies the influence of concentration and temperature on the corrosion process of mild steel in 0.5 M H2SO4 acid medium in the absence and in the presence of inhibitors imidazolium by electrochemical measurements : polarization curves and electrochemical impedance spectroscopy. and thus to determine the adsorption mechanisms. The second part of this work was devoted to the study of the comportment electrochemical the three types of steel in the absence and in the presence of inhibitors quinolinium.Note de contenu : Annexes. Diplôme : Doctorat en sciences En ligne : ../theses/chimie/SAI7430.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11084 Etude du pouvoir des inhibiteurs amines sur la corrosion des aciers en milieu acide. [texte imprimé] / Mohamed El hadi Said, Auteur ; Aissa Chibani, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 148 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ChimieTags : Chimie: Chimie analytique et physique inhibiteur de corrosion acier imidazole quinoléine inhibitor of corrosion steel imidazolium quinolinium موانع التأكل الفولاذ الاميدازوليوم الكينولينيوم Index. décimale : 540 Chimie et sciences connexes Résumé :
The use inhibition is one of the most practical method for the protection of metals against corrosion, especially in acidic media. Most of the well known inhibitors are organic compounds containing heteroatoms such as nitrogen, sulphur and oxygen. they act by adsorption on the metal surface. heterocyclic compounds, such as salt imidazol and quinoline are expected to be useful for this purpose. This work is devoted to the corrosion inhibition of steel in 0.5 M sulfuric acid medium by two family the salt organic from: imidazolium and quinolinium. the first part of this work studies the influence of concentration and temperature on the corrosion process of mild steel in 0.5 M H2SO4 acid medium in the absence and in the presence of inhibitors imidazolium by electrochemical measurements : polarization curves and electrochemical impedance spectroscopy. and thus to determine the adsorption mechanisms. The second part of this work was devoted to the study of the comportment electrochemical the three types of steel in the absence and in the presence of inhibitors quinolinium.Note de contenu : Annexes. Diplôme : Doctorat en sciences En ligne : ../theses/chimie/SAI7430.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11084 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SAI/7430 SAI/7430 Thèse Bibliothèque principale Thèses Disponible
