DEVELOPMENT AND APPLICATION OF ELECTROCHEMICAL MICROSCOPY FOR THE CHARACTERISATION, MONITORING AND ACTIVE CONTROL OF CORROSIVE PROCESSES (Q3157083)
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Project Q3157083 in Spain
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | DEVELOPMENT AND APPLICATION OF ELECTROCHEMICAL MICROSCOPY FOR THE CHARACTERISATION, MONITORING AND ACTIVE CONTROL OF CORROSIVE PROCESSES |
Project Q3157083 in Spain |
Statements
133,705.0 Euro
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157,300.0 Euro
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85.0 percent
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30 December 2016
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31 December 2020
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UNIVERSIDAD DE LA LAGUNA
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28°29'8.77"N, 16°18'57.38"W
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38023
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EL PROYECTO CONSISTE EN EL DESARROLLO DE NUEVAS METODOLOGIAS EXPERIMENTALES PARA MICROSCOPIAS ELECTROQUIMICAS DE PROXIMIDAD QUE PERMITAN EL ESTUDIO DE LOS PROCESOS FISICOQUIMICOS PARTICIPANTES EN LAS ETAPAS INICIALES DE LA CORROSION, ASI COMO LA CARACTERIZACION DE LOS MECANISMOS DE OPERACION CON VISTAS AL DESARROLLO DE SISTEMAS DE PROTECCION INTELIGENTES (QUE RESPONDEN A ESTIMULOS FISICO-QUIMICOS) EN SISTEMAS EXPERIMENTALES DE GRAN DESAFIO TECNOLOGICO. EL OBJETIVO PRIMARIO SERA DESARROLLAR TECNICAS QUE PERMITAN OBTENER UN CONOCIMIENTO PROFUNDO DE LOS MECANISMOS INVOLUCRADOS AL OBTENER INFORMACION QUIMICA CON RESOLUCION ESPACIAL A ESCALA MICROMETRICA Y SUBMICROMETRICA A TIEMPO REAL._x000D_ SE INVESTIGARAN LAS REACCIONES RESPONSABLES DE LA RUPTURA DE LAS CAPAS DE OXIDO PASIVANTES SOBRE HIERRO Y ACEROS INOXIDABLES, ANALIZANDO LOS EFECTOS DE LOS IONES INDUCTORES (ESPECIALMENTE CLORURO), CONDUCTIVIDAD IONICA, PH, CONCENTRACION DE OXIGENO Y TEMPERATURA. SE INTENTARA NO SOLO INDUCIR LA NUCLEACION DE LA PICADURA, SINO DETERMINAR CINETICAMENTE EL REGIMEN DE PROPAGACION Y LA TRANSICION AL REGIMEN DE ESTABILIDAD O SU EVENTUAL REPASIVACION._x000D_ SE INVESTIGARA TAMBIEN EL MECANISMO DE CORROSION DEL MAGNESIO Y SUS ALEACIONES, PROCURANDO EL ESCLARECIMIENTO DE LOS LUGARES DE REACCION ANODICO Y CATODICO, LOS LUGARES DE GENERACION DE HIDROGENO, LA POSIBLE EXISTENCIA DE MICROSISTEMAS DE CORROSION POR PICADO Y REPASIVACION PARA EL DESPLAZAMIENTO DE LOS FRENTES DE REACCION, Y LOS POSIBLES EFECTOS CATALITICOS DE REGIONES SUPERFICIALES QUE HAN ACTUADO PREVIAMENTE COMO ANODO. PARA ELLO SE SEGUIRA UNA METODOLOGIA EXPERIMENTAL NOVEDOSA CONSISTENTE EN LA SEPARACION FISICA DE LAS SEMIRREACCIONES ELECTROQUIMICAS POR ACOPLAMIENTO GALVANICO O LA UTILIZACION DE SUSTRATOS GEMELOS, IMPONIENDO POR MEDIO DE CIRCUITOS ELECTRICOS EXTERIORES LA POLARIZACION DE UNO RESPECTO AL OTRO. SE INVESTIGARA EL EFECTO DEL PH, LA INTERACCION DEL HIDROGENO GENERADO SOBRE LAS SONDAS DE MEDIDA Y LAS PROPIAS MUESTRAS EN CORROSION. _x000D_ TAMBIEN SE INVESTIGARA EL MECANISMO DE ACCION DE RECUBRIMIENTOS ANTICORROSIVOS INTELIGENTES BASADOS EN RECUBRIMIENTOS POLIMERICOS CONTENIENDO NANOCONTENEDORES QUE ALMACENEN INHIBIDORES DE LA CORROSION QUE SE ACTIVEN LIBERANDO EL INHIBIDOR SOLO CUANDO SE HAYA INICIADO LA CORROSION, CON OBJETO DE FRENAR LOS PROCESOS DEGRADATIVOS Y CICATRIZAR EL DEFECTO FORMADO. SE BUSCA DESARROLLAR NUEVAS METODOLOGIAS MICROELECTROQUIMICAS QUE PERMITAN ESTABLECER LAS ETAPAS FUNDAMENTALES DE LOS PROCESOS DE AUTOCURADO DE ACEROS GALVANIZADOS BASADAS EN LA COMBINACION DE LAS MICROSCOPIAS ELECTROQUIMICA SECM Y LA OPERACION DE UNA SONDA KELVIN. EL OBJETIVO FUNDAMENTAL SERA EL DISEÑO DE UN PARAMETRO FISICOQUIMICO RELACIONADO CON EL PROCESO DE CORROSION QUE ACTIVE LA LIBERACION CONTROLADA DE INHIBIDOR, Y SU DETENCION AL REESTABLECERSE LA PROTECCION FRENANDO SU LIBERACION AL MEDIOAMBIENTE. PARA ELLO SE RECURRIRA AL ANALISIS DE LAS PROPIEDADES DE BARRERA DE LAS MATRICES POLIMERICAS LIBRES DE DEFECTOS, CON OBJETO DE LOGRAR LA DETECCION TEMPRANA DE LOS PROCESOS DE CORROSION EN MICRODEFECTOS PARA LA DETECCION DE FLUJOS DE ESPECIES ENTRE EL RECUBRIMIENTO Y LA FASE ELECTROLITICA. (Spanish)
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THE PROJECT CONSISTS OF THE DEVELOPMENT OF NEW EXPERIMENTAL METHODS FOR PROXIMITY ELECTROCHEMICAL MICROSCOPY THAT ALLOW THE STUDY OF THE PHYSICO-CHEMICAL PROCESSES INVOLVED IN THE INITIAL STAGES OF CORROSION, AS WELL AS THE CHARACTERISATION OF THE OPERATING MECHANISMS WITH A VIEW TO THE DEVELOPMENT OF INTELLIGENT PROTECTION SYSTEMS (WHICH RESPOND TO PHYSICO-CHEMICAL STIMULI) IN EXPERIMENTAL SYSTEMS OF GREAT TECHNOLOGICAL CHALLENGE. The PRIME OBJECTIVE will be able to develop techniques that allow them to obtain a knowledge produced from the MECHANISMS INVOLUCRED TO OBTENER QUIMICAL INFORMATION WITH SPACIAL RESOLUTION TO Micrometric ESCAL AND SUBMICROMETRICA TO REAL TIME._x000D_ RESPONSIBLE REACTIONS OF THE REACTIONS will be investigated extension of passive oxide caps on iron and innoXIDABLE ACEROS, analysing the effects of the IONE INDUCTORS (ESPECIALLY CLORURO), IONIC CONDUCTIVITY, PH, OXIGEN AND TEMPERATURE CONCENTRATION. Attempts will not only be made to identify the nucleation of the PICADURA, but to deter cinematically the REGIMENSION OF PROPAGATION AND TRANSICTION to the Stablelihood Regime or its EVENTUAL REPASIVACION._x000D_ The MAGNESIUM CORROSION MECANISM AND YOUR ALEATIONS will also be investigated, seeking THE STRALLOWING OF ANODIC AND CATHOdic REACTION PLACES, HYDROGEN GENERATION LIGHTS, THE POSIBLE EXISTANCE OF MICROSISTEMS OF CORROSION BY PICATE AND REPASIVACTION FOR THE DISPLACEMENT OF REACTION FRENTS, AND THE POSSIBLE CATALITIC EFFECTS OF SUPERFICIIAL REGIONS that have been acting prevalent as an anointed. FOR THIS PURPOSE, A NOVEL EXPERIMENTAL METHOD CONSISTING OF THE PHYSICAL SEPARATION OF ELECTROCHEMICAL SEMI-REACTIONS BY GALVANIC COUPLING OR THE USE OF TWIN SUBSTRATES WILL BE FOLLOWED, IMPOSING BY MEANS OF EXTERNAL ELECTRICAL CIRCUITS THE POLARISATION OF ONE VIS-À-VIS THE OTHER. THE EFFECT OF PH, THE INTERACTION OF HYDROGEN GENERATED ON THE MEASURING PROBES AND THE SAMPLES THEMSELVES IN CORROSION WILL BE INVESTIGATED. _x000D_ also investigated the mechanics of anti-corrosive anti-corrosive anti-corrosive properties based on polymeric housing containing nanocontainers that store CORROSION INHIBITORS that are active in the release of the IHIBIDOR ONLY when CORROSION has been initiated, with the task to frustrate the degrading processes and heal the FORMED DEFECTOMATED. THE AIM IS TO DEVELOP NEW MICROELECTROQUIMICAS METHODS TO ESTABLISH THE FUNDAMENTAL STAGES OF THE SELF-CURING PROCESSES OF GALVANISED STEELS BASED ON THE COMBINATION OF ELECTROQUIM MICROSCOPY AND THE OPERATION OF A KELVIN PROBE. THE FUNDAMENTAL OBJECTIVE WILL BE THE DESIGN OF A PHYSICOCHEMICAL PARAMETER RELATED TO THE CORROSION PROCESS THAT ACTIVATES CONTROLLED RELEASE OF INHIBITOR, AND ITS DETENTION BY RE-ESTABLISHING PROTECTION BY SLOWING ITS RELEASE TO THE ENVIRONMENT. FOR THIS PURPOSE, THE ANALYSIS OF THE BARRIER PROPERTIES OF THE DEFECT-FREE POLYMERIC MATRICES WILL BE USED IN ORDER TO ACHIEVE THE EARLY DETECTION OF CORROSION PROCESSES IN MICRODEFECTS FOR THE DETECTION OF SPECIES FLOWS BETWEEN COATING AND ELECTROLITIC PHASE. (English)
12 October 2021
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San Cristóbal de La Laguna
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Identifiers
CTQ2016-80522-P
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