Corrosion of carbon, graphite, leather, papers etc. / Nikhil Arora in PAINTINDIA, Vol. LXVI, N° 11 (11/2016)  

[article]  inPAINTINDIA > Vol. LXVI, N° 11 (11/2016) . - p. 99-106 Titre : Corrosion of carbon, graphite, leather, papers etc. : Corrosion of non-metallic materials (Part-3) Type de document : texte imprimé Auteurs : Nikhil Arora, Auteur ; Durgesh Kumar Soni, Auteur ; P. K. Kamani, Auteur Année de publication : 2016 Article en page(s) : p. 99-106 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Carbone Corrosion Cuir Graphite Papier Index. décimale : 620.11 Matériaux (propriétés, résistance) Résumé : Corrosion of metallic materials takes place via an electrochemical reaction at a specific corrosion rate along with non electrochemical process. Consequently, the life of a metallic rnaterial in a particular corrosive environment can be accurately predicted. This is not the case with non-metallic materials. Non-metallic materials may deteriorate in various ways and manners, but not by electrochemical corrosion process. Only metals corrode according to the accepted definition of corrosion used in general. Carbon and graphite for example satisfactorily resist most minerai and organic acids, aqueous solutions of alkalis, salts and organic compounds, and organic solvents at temperature up to the boiling points. Selective leaching takes place in graphite because graphite is cathodic to iron, and gray iron's structure develops an excellent galvanic cell. Similarly superheated water can deteriorate diamond. Yellowing of paper, deterioration of leather are the examples of deterioration of non-metals. Note de contenu : - CARBON AND GRAPHITE - GRAPHITIC CORROSION : Attack by graphitic corrosion reduced by the following methods - CORROSION OF DIAMONDS : Degradation of carbon materilas by intercalation - Yellowing of books and newspapers : a corrosion phenomena - Corrosion of leather - Deterioration of leather - Mechanisms and agents of deterioration of leather - Light (photolysis and photoxidation) - Autoxidation of lipids - Atmospheric pollutants (ozone, SO2, NO2 and Co2) - Metals and salts - Heat - Water - Disposal of leather : biodegradability of leather En ligne : https://drive.google.com/file/d/1IHqTn0_4ZY0DSvemhUzFc4YsyloyECQ_/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27574 [article]

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Corrosion of glass and ceramics / Nikhil Arora in PAINTINDIA, Vol. LXVI, N° 9 (09/2016)  

[article]  inPAINTINDIA > Vol. LXVI, N° 9 (09/2016) . - p. 95-101 Titre : Corrosion of glass and ceramics : Corrosion of non-metallic materials (Part-2) Type de document : texte imprimé Auteurs : Nikhil Arora, Auteur ; Durgesh Kumar Soni, Auteur ; P. K. Kamani, Auteur Année de publication : 2016 Article en page(s) : p. 95-101 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Corrosion Matériaux céramiques Verre Index. décimale : 620.11 Matériaux (propriétés, résistance) Résumé : The glasses and ceramics being discussed in this chapter are limited to oxide, fluoride, silicate, borate, phosphate, and related compositions that make up cor mon ceramic materials. These materials are electrically insulating and contain few free carriers, sa that chemical attack on their surfaces is mainly by acid-base type of reactions rather than electrochemical corrosion involving redox reactions. Crystalline ceramics and non-crystalline glasses of similar composition often have quite different corrosion behavior showing that structure at the atomic scale also plays a role in corrosion process. The molten metal in contact with glasses and ceramics can cause an electro chemical type of corrosion. Note de contenu : - INTRODUCTION : Glass - ATTACK OF CERTAIN CHEMICALS ON GLASS SURFACE : Acids - Alkalis - Boiling water or superheated steam - Miscellaneous attack - CORROSION ATTACK MECHANISMS : Mechanisms of aqueous corrosion - Effect of surface corrosion on glass fracture - CORROSION IN CERAMICS - ATTACK BY MOLTEN METALS - ATTACK BY MOLTEN SALTS En ligne : https://drive.google.com/file/d/1b9_X2Dat4qH9BcLcZjkt6FhnaGefLc5i/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27501 [article]

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Corrosion of non-metallic materials (Part-1) / Nikhil Arora in PAINTINDIA, Vol. LXVI, N° 8 (08/2016)  

[article]  inPAINTINDIA > Vol. LXVI, N° 8 (08/2016) . - p. 102-110 Titre : Corrosion of non-metallic materials (Part-1) Type de document : texte imprimé Auteurs : Nikhil Arora, Auteur ; Durgesh Kumar Soni, Auteur ; P. K. Kamani, Auteur Année de publication : 2016 Article en page(s) : p. 102-110 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bois -- Détérioration Corrosion Matières plastiques -- Détérioration Polymères -- Détérioration Index. décimale : 620.11 Matériaux (propriétés, résistance) Résumé : Corrosion of metallic materials takes place via an electrochemical reaction at a specific corrosion rate along with non-electrochemical process. Consequently, the life of a metallic material in a particular corrosive environment can be accurately predicted. This is not the case with non-metallic materials. Non-metallic materials may deteriorate in various ways and manners, but not by electrochemical corrosion process. Only metals corrode according to the accepted definition of corrosion used in general. The mechanism of deterioration of the two classes of materials serves to distinguish the corrosion reaction of metals, largely electrochemical in character, from the physical and sometimes chemical processes that attend degradation of non-metals. However, the discussion of the properties of many non-metals and semi metals are also very imperative due to their continuous growth in practical applications especially in corrosive environment. Note de contenu : - POLYMER AND POLYMERIC MATERIALS ; PLASTICS/RUBBERS - CHEMICAL REACTION : Photoinduced degradation (UV degradation) - Thermal degradation - The mechanism of thermal degradation - Initiation - Propagation - Termination - DETECTION OF THERMAL DEGRADATION OF POLYMERS : TGA - DTA and DSC - Solvolysis (effect of chemicals) - Oxidation - Galvanic action - Chlorine-induced cracking - Biological degradation - Physical interaction - Commodity polymers - DETECTION - CORROSION OF WOOD - CORROSION OF WOOD BY CHEMICALS UNDER ANAEROBIC CONDITIONS : WOOD FOSSILIZATION En ligne : https://drive.google.com/file/d/1KGq-RKOtz7ST9ovpCCV2HO9M87Qg1P1p/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27345 [article]

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