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Auteur P. K. Kamani
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Department of Oil and Paint Technology, Harcourt Butler Technological Institute (HBTI), Kanpur, India
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Titre : Corrosion process Type de document : texte imprimé Auteurs : P. K. Kamani, Auteur Année de publication : 2013 Article en page(s) : p. 78-84 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Biodégradation
Climat
Corrosion
Microorganismes
Produits chimiques
TempératureIndex. décimale : 620.11 Matériaux (propriétés, résistance) Résumé : In the first part, we studied about the losses and damages due to corrosion. There are basically three areas where the impact of corrosion is significant. The first one is economic, which define the enormous material loss resulting from various type of corrosion damages. The second is safety and reliability of equipment and structure, which may lead to catastrophic consequences due to corrosion, resulting an incalculatable loss of life and money. For example, Guadalajara explosions took place on April 22, 1992, in the downtown district of Analco. Numerous gasoline explosions in the sewer system over four hours destroyed 8 kilometres of streets. Gante Street was the most damaged. Officially, by the Lloyd's of London accounting, 252 people were killed; nearly 500 injured and 15,000 were left homeless. The estimated monetary damage ranges between $300 million and $1 billion. Similarly the Silver Bridge in West Virginia collapsed due to pitting corrosion ki II ing 46 people on the bridge in December, 1967. The third area, which is also no lesser important, is depletion of limited material resources including wastage of energy, water, manpower etc. Though the development is fast enough in almost every sphere of I ife, including the designing of structure and process equipments but the complexity of corrosive environments is also keeping its pace parallel. The designers, engineers, chemists and technologists are therefore, facing an insurmountable problem. Evan a small improvement in the prevention of corrosion would lead to a significant gain to the nation. The corrosion losses would have been greater if during last couple of decade, the subject had not been given the considerable attention. The corrosion problem has well understood and taken up by structure and equipment manufacturers, research organisations, corrosion associations and other institutions. If we wish to mitigate the corrosion, we have to understand the root cause of corrosion. In this part, classification of corrosion process would be discussed. Note de contenu : - CLASSIFICATION OF CORROSION PROCESS : A. Mechanism of corrosion processes - Chemical corrosion
- FUNDAMENTAL OF OXIDATION AND TRANISHING
- GROWTH OF SURFACE LAYER : Cracking and spalling - Effect of metal properties - Composition - Surface conditions - Effect of environment - Effect of high temperature - Biochemical corrosion or bio-corrosion or microbiologically induced corrosion
- THE INFLUENCE OF MICROORGANISMS ON CORROSION PROCESSESEn ligne : https://drive.google.com/file/d/1OJ2pixZG_pTW0z8GdU4p5MOldd0W6vNc/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18976
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Code-barres Cote Support Localisation Section Disponibilité 15287 - Périodique Bibliothèque principale Documentaires Disponible Corrosion protection of underground pipelines and other structures / Abhijit Singh in PAINTINDIA, Vol. LXVI, N° 12 (12/2016)
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Titre : Corrosion protection of underground pipelines and other structures Type de document : texte imprimé Auteurs : Abhijit Singh, Auteur ; Durgesh Kumar Soni, Auteur ; P. K. Kamani, Auteur Année de publication : 2016 Article en page(s) : p. 99-108 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anticorrosion
Epoxydes
Pipelines -- Corrosion
Revêtements protecteurs
TuyauterieIndex. décimale : 667.9 Revêtements et enduits Résumé : Corrosion of underground pipelines and other buried structures takes place by the electrochemical processes. Various factors are responsible for the corrosion of underground pipelines like dissimilar metals in the pipelines, variation of the nature of soil, different surface conditions of the pipelines, electrolysis and due to the attack of different groups of bacteria. Different methods were applied to protect the buried structures from corrosion like application of protective coatings which included hot applied coatings, cold applied coatings and cathodic protection (CP). The development of coating in every sphere e.g. formulation, manufacturing and application has elongated the life of underground structure. Note de contenu : - FACTORS AFFECTING THE CORROSIVITY OF SOILS
- THEORY OF CORROSION
- TYPES OF NATURAL CORROSION : Dissimilar metals
- VARIATION OF THE NATURE OF SOIL : Dissimilar surface conditions - Electrolysis
- BACTERIAL CORROSION
- CORROSION PROTECTION OF BURIED PIPELINES BY APPLICATION OF COATINGS : Hot applied coatings - There are three types of coated and wrapped pipes - Cold applied coatings - Industrial tapes - Liquide coatings - Recent developments - High temperature resistance epoxy - Low temperature cure epoxy - Damp surface epoxy
- CATHODIC PROTECTION : History - The principles of cathodic protection - Cathodic protection can be achieved in two ways - Advantages and uses of cathodic protection - Basic requirements for cathodic protection
- DESIGH FACTORS : Initial considerations - Potential level and distribution - Economics of decisions - Problems to be avoided - Types of equipmentEn ligne : https://drive.google.com/file/d/1UuisUbHbcuHPgm_SrkAzc4MIXustsnuN/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28017
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Code-barres Cote Support Localisation Section Disponibilité 18735 - Périodique Bibliothèque principale Documentaires Disponible Corrosion severity : a function of contaminants, components and coatings / Shiv Charan Prajapati in PAINTINDIA, Vol. LXIV, N° 10 (10/2014)
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Titre : Corrosion severity : a function of contaminants, components and coatings Type de document : texte imprimé Auteurs : Shiv Charan Prajapati, Auteur ; P. K. Kamani, Auteur Année de publication : 2014 Article en page(s) : p. 94-100 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adhésion
Cloquage (défauts)
Corrosion -- Analyse
Humidité
Polluants
Rayures
Revêtements -- Détérioration
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : A corrosion study with respect to contaminants (water soluble salts I ike sulphates, ch lorides and nitrates etc.), design of the components (macro and micro defects developed due to improper design and physico-chemical behaviour of coatings (adhesion, permeation of air and moisture) etc. was done by several scientists and found that these elements prove to be the deciding factors in rate of corrosion. The presence of soluble salts (chloride, sulphate & nitrate) and their effect of the coating-metal interface was studied along with the chemistry of coating, water and oxygen permeabi I ity, coating th ickness and metal surface preparation. The macroscopic defects, caused due to improper design ing, handl ing, etc. also causes corrosion. The surface anomalies have their own rote in deciding the coating life. There are some coating systems which can reduce or postpone corrosion mechanism. Note de contenu : - Effect of contaminants
- Blistering and adhesion
- Organic coatings
- Experimental
- Corrosion scratch test
- Humidity test
- Table 1 : Resins/binders with their composition
- Table 2 : Test results
- Table 3 : Humidity test resutls
- Table 4 : Blistering results
- Table 5 : Under film corrosion
- Table 6 : Water and oxygen permeability of resins
- Table 7 : Occurrence of atmospheric sulfur compounds according to ISO N43E
- Table 8 : Occurence of airborne salinity according to ISO N53E
- Table 9 : Solubility of reaction productEn ligne : https://drive.google.com/file/d/1xjBojSsmtY12Lr9pWqywt92lhQtehKMA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40370
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Code-barres Cote Support Localisation Section Disponibilité 16695 - Périodique Bibliothèque principale Documentaires Disponible Designing a corrosion resistant resin for surface coating / Shiv Charan Prajapati in PAINTINDIA, Vol. LXV, N° 9 (09/2015)
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Titre : Designing a corrosion resistant resin for surface coating Type de document : texte imprimé Auteurs : Shiv Charan Prajapati, Auteur ; Renu Chauhan, Auteur ; P. K. Kamani, Auteur Année de publication : 2015 Article en page(s) : p. 112-116 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Analyse spectrale
Anticorrosifs
Anticorrosion
Caractérisation
Copolymère silicone acrylique
Polymérisation en émulsion
Résistance chimique
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : Acrylic silicon hybrid resins for corrosion protective coatings were developed by emulsion co-polymerisation of methy acrylate (MMA), butyl acrylate (BA), styrene with methacryloxypropyl trymethoxysilane (MATS) and octamethylcyclotetra siloxane at 80-85°C in the presence of ammonium per sulphate (APS) as the initiator, resulting polymers were characterised by using Fourier Transformed Infra Red Spectroscopy (FTIR) and particle size analyser. The obtained polymer had high solid content and was used in emulsion paints as binder. The coatings were prepared and their anticorrosion behaviour discussed with varying silicon content. The experimental results show that these polymers supply very useful properties such as high anticorrosive, UV light stability, washing and coating with highest silicon content exhibited the maximum corrosion resistance property. Remarkable improvements in film properties were seen. Note de contenu : - EXPERIMENTAL : Material - Preparation of reagents - Polymerization procedure - Characterization of synthesized polymers
- COATING FORMULATION AND FILM PREPARATION
- CHARACTERIZATION OF FILM PROPERTIES : Corrosion resistance properties - Chemical resistance properties - Mechanical properties
- RESULTATS AND DISCUSSION : Spectral analysis - Corrosion resistance properties of hybrid films - Chemical resistance properties of hybrid films - Mechanical properties of hybrid filmsEn ligne : https://drive.google.com/file/d/1xp17XCvYoCSVqg_nuQYkeE7txb2pAm2L/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24844
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Code-barres Cote Support Localisation Section Disponibilité 17552 - Périodique Bibliothèque principale Documentaires Disponible Electrochemical corrosion - Part 3 / P. K. Kamani in PAINTINDIA, Vol. LXIII, N° 7 (07/2013)
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Titre : Electrochemical corrosion - Part 3 Type de document : texte imprimé Auteurs : P. K. Kamani, Auteur Année de publication : 2013 Article en page(s) : p. 108-112 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Corrosion électrochimique Index. décimale : 667.9 Revêtements et enduits Résumé : The corrosion of metals occurs primarily by electrochemical processes involving metal oxidation and simultaneous reduction of some other species. The mechanism involved in electrochemical corrosion (ECC) differs substantially from that of chemical corrosion. The ECC is characterised principally by localisation of the anodic and cathodic processes in different regions of the surface. These "sites" together make up a corrosion cell. The rate of ECC more or less depends upon the anodic and cathodic potentials. The potential difference causes flow of electron when the anode and cathode are in contact or electrically connected (short-circuited). The potential difference (EMF) and resistance in the circuit control the flow of charges or current.
The electrochemical corrosion is due to the formation of cells (anode and cathode) in the metal. These cells can be formed by one or many reasons e.g. due to grain boundaries in the Metal, rnechanical treatment given to metal, difference in concentration of electrolyte, difference in composition of metal, varying temperature of metal, difference in pH of environment, the metal is exposed to, variation in oxygen of metal environnent, variation in radiant energy, metal is subjected to, etc. The approach in designing the structures, equipments etc. and in selecting the metal should be such that, the cell formation does not take place, though it is difficult but can be reduced by judicious application of available technologies.Note de contenu : - ELECTROCHEMISTRY : 1. Galvanic cells - (Metallurgical structure - Metallurgical conditions) - 2. Concentration cell (Differential electrolyte concentration or differential salt concentration cell - Differential oxygen concentration or differential aeration cells - Differential temperature cells)
- ELECTROLYTE CELLSPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19656
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Code-barres Cote Support Localisation Section Disponibilité 15620 - Périodique Bibliothèque principale Documentaires Disponible Esterification of ethylene glycol and polyethylene glycol modified shellac for high class indutrial finishes / Deepti Shikha in PAINTINDIA, Vol. XLIX, N° 6 (06/1999)
PermalinkForms of corrosion : De-alloying/selective leaching - Part 10 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 2 (02/2014)
PermalinkForms of corrosion : caustic embrittlement and liquid metal embrittlement - Part 12 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 4 (04/2014)
PermalinkForms of corrosion : corrosion fatigue - Part 14 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 6 (06/2014)
PermalinkForms of corrosion : Erosion-corrosion - Part 8 / P. K. Kamani in PAINTINDIA, Vol. LXIII, N° 12 (12/2013)
PermalinkForms of corrosion : Erosion-corrosion - Part 9 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 1 (01/2014)
PermalinkForms of corrosion : exfoliation corrosion and hydrogen damage - Part 11 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 3 (03/2014)
PermalinkForms of corrosion : Pitting corrosion - Part 7 / P. K. Kamani in PAINTINDIA, Vol. LXIII, N° 11 (11/2013)
PermalinkForms of corrosion : stress corrosion cracking - Part 13 / P. K. Kamani in PAINTINDIA, Vol. LXIV, N° 5 (05/2014)
PermalinkPermalinkPermalinkPermalinkMorphological mechanism of extenders in surface coatings : an insight / Manu Gupta in PAINTINDIA, Vol. LVII, N° 10 (10/2007)
PermalinkNon isocyanate polyurethane using glycidyl acrylate monomers / Durgesh Kumar Soni in PAINTINDIA, Vol. LXXI, N° 2 (02/2021)
PermalinkPaint design / P. K. Kamani in PAINTINDIA, PAINTINDIA '98 (01/1998)
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