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Author: MICKAEL.. GROS JEAN
Publisher:
ISBN:
Category :
Languages : fr
Pages : 165
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Book Description
CE TRAVAIL EST CONSACRE A LA FABRICATION ET A LA CARACTERISATION DE STRUCTURES NANOCOMPOSITES SILICIUM POREUX/CDS. UNE ETUDE APPROFONDIE DE LA CHIMIE DES SOLUTIONS CONTENANT DES IONS CD + + ET L'UTILISATION D'UN PRECURSEUR DE SOUFRE TRES REACTIF, LA THIOACETAMIDE, ONT PERMIS DE METTRE AU POINT UN PROCEDE DE DEPOT DE CDS ADAPTE AU SILICIUM POREUX (FAIBLE PH ET TEMPERATURE AMBIANTE). CE PROCEDE DE DEPOT, APPELE DEPOT SEQUENTIEL, UTILISE DEUX BAINS SEPARES : UN PREMIER BAIN POUR L'ADSORPTION D'HYDROXYDE DE CADMIUM ET UN DEUXIEME BAIN POUR LA TRANSFORMATION DE CET HYDROXYDE DE CADMIUM EN CDS. L'UTILISATION DE TECHNIQUES DE CARACTERISATION COMME LA SPECTROMETRIE AUGER, LA SPECTROMETRIE RUTHERFORD, LA SPECTROMETRIE D'ELECTRONS OU LA DIFFRACTION DES RAYONS X CONFIRME QU'IL SE FORME DU CDS DANS LES PORES DU SILICIUM CE QUI CONDUIT PAR AILLEURS A LA COMPRESSION DE LA STRUCTURE POREUSE. LA SPECTROMETRIE D'ELECTRONS ET LA SPECTROSCOPIE INFRAROUGE REVELENT QUE LE MATERIAU POREUX EST OXYDE PAR LES BAINS DE DEPOT, CE QUI EST PROBABLEMENT A L'ORIGINE DE LA PERTE DE SES PROPRIETES DE LUMINESCENCE. LA METHYLATION PREALABLE DU SQUELETTE POREUX AVANT DEPOT DE CDS PERMET D'EVITER CETTE OXYDATION. LES COUCHES NANOCOMPOSITES AINSI OBTENUES CONSERVENT LEUR PROPRIETE DE PHOTOLUMINESCENCE ET PERMETTENT D'OBTENIR DES STRUCTURES ELECTROLUMINESCENTES POUR DES POLARISATIONS ELECTRIQUES D'ENVIRON 2 VOLTS, AVEC CEPENDANT UN RENDEMENT QUI RESTE FAIBLE.
Author: MICKAEL.. GROS JEAN
Publisher:
ISBN:
Category :
Languages : fr
Pages : 165
Get Book Here
Book Description
CE TRAVAIL EST CONSACRE A LA FABRICATION ET A LA CARACTERISATION DE STRUCTURES NANOCOMPOSITES SILICIUM POREUX/CDS. UNE ETUDE APPROFONDIE DE LA CHIMIE DES SOLUTIONS CONTENANT DES IONS CD + + ET L'UTILISATION D'UN PRECURSEUR DE SOUFRE TRES REACTIF, LA THIOACETAMIDE, ONT PERMIS DE METTRE AU POINT UN PROCEDE DE DEPOT DE CDS ADAPTE AU SILICIUM POREUX (FAIBLE PH ET TEMPERATURE AMBIANTE). CE PROCEDE DE DEPOT, APPELE DEPOT SEQUENTIEL, UTILISE DEUX BAINS SEPARES : UN PREMIER BAIN POUR L'ADSORPTION D'HYDROXYDE DE CADMIUM ET UN DEUXIEME BAIN POUR LA TRANSFORMATION DE CET HYDROXYDE DE CADMIUM EN CDS. L'UTILISATION DE TECHNIQUES DE CARACTERISATION COMME LA SPECTROMETRIE AUGER, LA SPECTROMETRIE RUTHERFORD, LA SPECTROMETRIE D'ELECTRONS OU LA DIFFRACTION DES RAYONS X CONFIRME QU'IL SE FORME DU CDS DANS LES PORES DU SILICIUM CE QUI CONDUIT PAR AILLEURS A LA COMPRESSION DE LA STRUCTURE POREUSE. LA SPECTROMETRIE D'ELECTRONS ET LA SPECTROSCOPIE INFRAROUGE REVELENT QUE LE MATERIAU POREUX EST OXYDE PAR LES BAINS DE DEPOT, CE QUI EST PROBABLEMENT A L'ORIGINE DE LA PERTE DE SES PROPRIETES DE LUMINESCENCE. LA METHYLATION PREALABLE DU SQUELETTE POREUX AVANT DEPOT DE CDS PERMET D'EVITER CETTE OXYDATION. LES COUCHES NANOCOMPOSITES AINSI OBTENUES CONSERVENT LEUR PROPRIETE DE PHOTOLUMINESCENCE ET PERMETTENT D'OBTENIR DES STRUCTURES ELECTROLUMINESCENTES POUR DES POLARISATIONS ELECTRIQUES D'ENVIRON 2 VOLTS, AVEC CEPENDANT UN RENDEMENT QUI RESTE FAIBLE.
Author: Nicolas Boyard
Publisher: John Wiley & Sons
ISBN: 1848217617
Category : Science
Languages : en
Pages : 464
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Book Description
This book addresses general information, good practices and examples about thermo-physical properties, thermo-kinetic and thermo-mechanical couplings, instrumentation in thermal science, thermal optimization and infrared radiation.
Author: C. Bréchignac
Publisher: Springer Science & Business Media
ISBN: 3540729933
Category : Science
Languages : en
Pages : 753
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Book Description
Here is a brilliant book that covers the major aspects of nanomaterials production. It integrates the many and varied chemical, material and thermo-dynamical facets of production, offering readers a new and unique approach to the subject. The mechanical, optical, and magnetic characteristics of nanomaterials are also presented in detail. Nanomaterials are a fast developing field of research and this book serves as both a reference work for researchers and a textbook for graduate students.
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: Mario Grassi
Publisher: CRC Press
ISBN: 1420004654
Category : Medical
Languages : en
Pages : 648
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Book Description
Demand for better reliability from drug delivery systems has caused designers and researchers to move away from trial-and-error approaches and toward model-based methods of product development. Developing such models requires cross-disciplinary physical, mathematical, and physiological knowledge. Combining these areas under a single cover, Under
Author: Leslie Rainer
Publisher: Getty Publications
ISBN: 1606060430
Category : Architecture
Languages : fr
Pages : 438
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Book Description
Earthen architecture constitutes one of the most diverse forms of cultural heritage and one of the most challenging to preserve. It dates from all periods and is found on all continents but is particularly prevalent in Africa, where it has been a building tradition for centuries. Sites range from ancestral cities in Mali to the palaces of Abomey in Benin, from monuments and mosques in Iran and Buddhist temples on the Silk Road to Spanish missions in California. This volume's sixty-four papers address such themes as earthen architecture in Mali, the conservation of living sites, local knowledge systems and intangible aspects, seismic and other natural forces, the conservation and management of archaeological sites, research advances, and training.
Author: Ning Hu
Publisher: IntechOpen
ISBN: 9789535107064
Category : Science
Languages : en
Pages : 440
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Book Description
Composites are a class of material, which receives much attention not only because it is on the cutting edge of active material research fields due to appearance of many new types of composites, e.g., nanocomposites and bio-medical composites, but also because there are a great deal of promise for its potential applications in various industries ranging from aerospace to construction due to its various outstanding properties. This book mainly describes some potential applications and the related properties of various composites by focusing on the following several topics: health or integrity monitoring techniques of composites structures, bio-medical composites and their applications in dental or tissue materials, natural fiber or mineral filler reinforced composites and their property characterization, catalysts composites and their applications, and some other potential applications of fibers or composites as sensors, etc. This book has been divided into five sections to cover the above contents.
Author: John Regalbuto
Publisher: CRC Press
ISBN: 1420006509
Category : Science
Languages : en
Pages : 490
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Book Description
This text explores the optimization of catalytic materials through traditional and novel methods of catalyst preparation, characterization, and monitoring for oxides, supported metals, zeolites, and heteropolyacids. It focuses on the synthesis of bulk materials and of heterogeneous materials, particularly at the nanoscale. The final chapters examine pretreatment, drying, finishing effects, and future applications involving catalyst preparation and the technological advances necessary for continued progress. Topics also include heat and mass transfer limitations, computation methods for predicting properties, and catalyst monitoring on laboratory and industrial scales.
Author: John F. Watts
Publisher: John Wiley & Sons
ISBN: 1119417643
Category : Technology & Engineering
Languages : en
Pages : 307
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Book Description
Provides a concise yet comprehensive introduction to XPS and AES techniques in surface analysis This accessible second edition of the bestselling book, An Introduction to Surface Analysis by XPS and AES, 2nd Edition explores the basic principles and applications of X-ray Photoelectron Spectroscopy (XPS) and Auger Electron Spectroscopy (AES) techniques. It starts with an examination of the basic concepts of electron spectroscopy and electron spectrometer design, followed by a qualitative and quantitative interpretation of the electron spectrum. Chapters examine recent innovations in instrument design and key applications in metallurgy, biomaterials, and electronics. Practical and concise, it includes compositional depth profiling; multi-technique analysis; and everything about samples—including their handling, preparation, stability, and more. Topics discussed in more depth include peak fitting, energy loss background analysis, multi-technique analysis, and multi-technique profiling. The book finishes with chapters on applications of electron spectroscopy in materials science and the comparison of XPS and AES with other analytical techniques. Extensively revised and updated with new material on NAPXPS, twin anode monochromators, gas cluster ion sources, valence band spectra, hydrogen detection, and quantification Explores key spectroscopic techniques in surface analysis Provides descriptions of latest instruments and techniques Includes a detailed glossary of key surface analysis terms Features an extensive bibliography of key references and additional reading Uses a non-theoretical style to appeal to industrial surface analysis sectors An Introduction to Surface Analysis by XPS and AES, 2nd Edition is an excellent introductory text for undergraduates, first-year postgraduates, and industrial users of XPS and AES.
Author: Pedro Gómez-Romero
Publisher: John Wiley & Sons
ISBN: 3527605193
Category : Technology & Engineering
Languages : en
Pages : 434
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Book Description
Functional Hybrid Materials consist of both organic and inorganic components, assembled for the purpose of generating desirable properties and functionalities. The aim is twofold: to bring out or enhance advantageous chemical, electrochemical, magnetic or electronic characteristics and at the same time to reduce or wholly suppress undesirable properties or effects. Another target is the creation of entirely new material behavior. The vast number of hybrid material components available has opened up a wide and diversified field of fascinating research. In this book, a team of highly renowned experts gives an in-depth overview, illustrating the superiority of well-designed hybrid materials and their potential applications.
