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Oxydation Et Prise Dhydrogene Dalliages De Titane En Milieu Primaire De Reacteur A Eau Pressurisee
Download Oxydation Et Prise Dhydrogene Dalliages De Titane En Milieu Primaire De Reacteur A Eau Pressurisee full books in PDF, epub, and Kindle. Read online Oxydation Et Prise Dhydrogene Dalliages De Titane En Milieu Primaire De Reacteur A Eau Pressurisee ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Oxydation et prise d'hydrogène d'alliages de titane en milieu primaire de réacteur à eau pressurisée by : Quentin Bignon
Download or read book Oxydation et prise d'hydrogène d'alliages de titane en milieu primaire de réacteur à eau pressurisée written by Quentin Bignon and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les alliages de titane possèdent une faible activation neutronique, une bonne tenue mécanique et une bonne résistance à la corrosion de manière générale. Ils sont susceptibles d'être utilisés comme matériau de structure de composants du circuit primaire des réacteurs nucléaires à eau pressurisée. Cette étude s'intéresse à leur durabilité dans ce milieu.Des échantillons de trois alliages de titane alpha (T40), alpha + beta (TA6V) et beta métastable (Ti10-2-3) ont été exposés au milieu primaire à 300 °C et à 350 °C pour des durées maximales de 11000 h et 1750 h respectivement. Des observations MEB et des analyses XPS, SDL, MET-ASTAR et de photoélectrochimie ont permis de proposer un mécanisme de corrosion impliquant simultanément la croissance interne et la dissolution dans le milieu d'une fine couche dense de TiO2 accompagnées de la précipitation de cristallites d'oxydes TiO2 et FeTiO3 liée à la saturation du milieu en hydroxydes. Il en résulte une consommation du métal estimée grâce à des analyses d'images et à la modélisation des prises de masse en fonction du temps de 2,9 μm.an-1 à 300 °C et de 18 μm.an-1 à 350 °C au maximum. Cette cinétique de corrosion est fortement ralentie lorsque les cristallites de FeTiO3 recouvrent la totalité de la surface des échantillons. L'exposition au milieu primaire des matériaux implique aussi une prise d'hydrogène d'autant plus importante que la température et le taux de phase beta sont élevés. Des essais de traction à température ambiante ont été réalisés sur des éprouvettes exposées au milieu primaire et sur des éprouvettes chargées en hydrogène ou traitées thermiquement. Ces essais ont mis en évidence une baisse de ductilité du Ti1023 liée à son exposition au milieu primaire. Cette baisse de ductilité semble résulter de l'effet couplé du vieillissement thermique et de la présence d'hydrures aux interfaces alpha/beta. L'exposition au milieu primaire réalisée au laboratoire du T40 et du TA6V ne modifie que très peu leurs propriétés mécaniques étant donné que les prises d'hydrogène sont faibles devant les concentrations en hydrogène de transition ductile/fragile.L'utilisation des alliages de titane en milieu primaire paraît donc possible sur de longues durées sous réserve que leur phase beta soit stable et que les pièces possèdent un rapport surface/volume suffisamment faible pour limiter leur teneur en hydrogène.
Book Synopsis High-temperature Oxidation of Metals by : Per Kofstad
Download or read book High-temperature Oxidation of Metals written by Per Kofstad and published by . This book was released on 1966 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Thermodynamics of Zirconium by :
Download or read book Chemical Thermodynamics of Zirconium written by and published by Elsevier. This book was released on 2005-12-06 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the series on "Chemical Thermodynamics", published under the aegis of the OECD Nuclear Energy Agency. It contains a critical review of the literature on thermodynamic data for inorganic compounds of zirconium. A review team, composed of five internationally recognized experts, has critically reviewed all the scientific literature containing chemical thermodynamic information for the above mentioned systems. The results of this critical review carried out following the Guidelines of the OECD NEA Thermochemical Database Project have been documented in the present volume, which contains tables of selected values for formation and reaction thermodynamical properties and an extensive bibliography. * Critical review of all literature on chemical thermodynamics for compounds and complexes of Zr.* Tables of recommended Selected Values for thermochemical properties* Documented review procedure* Exhaustive bibliography* Intended to meet requirements of radioactive waste management community* Valuable reference source for the physical, analytical and environmental chemist.
Book Synopsis High Temperature Corrosion and Materials Chemistry by : Michael McNallan
Download or read book High Temperature Corrosion and Materials Chemistry written by Michael McNallan and published by The Electrochemical Society. This book was released on 2000 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inorganic Ion Exchangers in Chemical Analysis by : M. Qureshi
Download or read book Inorganic Ion Exchangers in Chemical Analysis written by M. Qureshi and published by CRC Press. This book was released on 1991-01-22 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an in-depth discussion regarding inorganic ion exchangers for students, teachers, and researchers engaged in conducting research in chemical technology and related areas. Analytical chemists seeking simple and novel means of using easy-to-prepare chromatographic materials will find this book extremely informative. Inorganic Ion Exchangers in Chemical Analysis is unique in its discussion of column and planar chromatographic applications of amorphous synthetic inorganic ion exchangers. The book also covers the historical background of iorganic ion exchangers, their classification and present status, and the analytical aspects of these materials.
Book Synopsis The Hydrolysis of Cations by : Charles F. Baes
Download or read book The Hydrolysis of Cations written by Charles F. Baes and published by . This book was released on 1976 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ceramic Nanocomposites by : Rajat Banerjee
Download or read book Ceramic Nanocomposites written by Rajat Banerjee and published by Elsevier. This book was released on 2013-07-31 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic nanocomposites have been found to have improved hardness, strength, toughness and creep resistance compared to conventional ceramic matrix composites. Ceramic nanocomposites reviews the structure and properties of these nanocomposites as well as manufacturing and applications.Part one looks at the properties of different ceramic nanocomposites, including thermal shock resistance, flame retardancy, magnetic and optical properties as well as failure mechanisms. Part two deals with the different types of ceramic nanocomposites, including the use of ceramic particles in metal matrix composites, carbon nanotube-reinforced glass-ceramic matrix composites, high temperature superconducting ceramic nanocomposites and ceramic particle nanofluids. Part three details the processing of nanocomposites, including the mechanochemical synthesis of metallic–ceramic composite powders, sintering of ultrafine and nanosized ceramic and metallic particles and the surface treatment of carbon nanotubes using plasma technology. Part four explores the applications of ceramic nanocomposites in such areas as energy production and the biomedical field.With its distinguished editors and international team of expert contributors, Ceramic nanocomposites is a technical guide for professionals requiring knowledge of ceramic nanocomposites, and will also offer a deeper understanding of the subject for researchers and engineers within any field dealing with these materials. Reviews the structure and properties of ceramic nanocomposites as well as their manufacturing and applications Examines properties of different ceramic nanocomposites, as well as failure mechanisms Details the processing of nanocomposites and explores the applications of ceramic nanocomposites in areas such as energy production and the biomedical field
