Elaboration et caractérisation physico-chimique de nanocomposites plomb/céramique pour batteries acides

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (494 download)

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Book Synopsis Elaboration et caractérisation physico-chimique de nanocomposites plomb/céramique pour batteries acides by : Xavier Bourgoin

Download or read book Elaboration et caractérisation physico-chimique de nanocomposites plomb/céramique pour batteries acides written by Xavier Bourgoin and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les grilles des batteries acides au plomb sont traditionnellement réalisées dans un alliage de plomb-calcium-étain sujet à des transformations microstructurales qui conduisent à une détérioration des propriétés mécaniques et chimiques de la grille. Ces travaux portent sur de nouveaux matériaux destinés à remplacer les alliages actuellement utilisés afin de prolonger la vie des batteries et de faciliter leur retraitement, ces deux contributions étant bénéfiques d'un point de vue industriel et environnemental. La première partie de l'étude montre l'étendue des difficultés rencontrées du fait de la présence d'éléments d'alliage dans le plomb de seconde fusion. Les nouveaux matériaux proposés dans la deuxième partie sont constitués d'une matrice de plomb contenant une faible proportion de céramique afin de renforcer le matériau par technologie ODS en s'appuyant sur la métallurgie des poudres. Différentes méthodes ont été employées pour la synthèse de poudre. Une voie de mélanges de poudres commerciales préparées, une voie physique par pulvérisation à l'aide d'un plasma d'arc et une voie de réduction chimique d'un sel de plomb. Les duretés sont stables dans le temps et atteignent deux fois celle de l'alliage de référence, tandis que les vitesses de fluage secondaires sont divisées jusqu'à quatre par rapport à ce même alliage. En revanche, la tenue en corrosion affiche un caractère catastrophique avec des déchaussements de grains. Des dépôts électrochimiques de plomb à partir d'un bain de fluoborate ont été proposés pour pallier cette mauvaise tenue en corrosion, avec succès. De la même façon, des dépôts de silice par PECVD ont permis l'amélioration de la tenue en corrosion de l'alliage de référence.

ICREEC 2019

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Publisher : Springer Nature
ISBN 13 : 9811554447
Total Pages : 659 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis ICREEC 2019 by : Ahmed Belasri

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Flexoelectricity in Liquid Crystals

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Publisher : World Scientific
ISBN 13 : 1848167997
Total Pages : 299 pages
Book Rating : 4.8/5 (481 download)

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Book Synopsis Flexoelectricity in Liquid Crystals by : Agnes Buka

Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.

Modern Surface Organometallic Chemistry

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Publisher : John Wiley & Sons
ISBN 13 : 3527627103
Total Pages : 725 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Modern Surface Organometallic Chemistry by : Jean-Marie Basset

Download or read book Modern Surface Organometallic Chemistry written by Jean-Marie Basset and published by John Wiley & Sons. This book was released on 2009-07-10 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering everything from the basics to recent applications, this monograph represents an advanced overview of the field. Edited by internationally acclaimed experts respected throughout the community, the book is clearly divided into sections on fundamental and applied surface organometallic chemistry. Backed by numerous examples from the recent literature, this is a key reference for all chemists.

Environmental Barrier Coatings

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Publisher : MDPI
ISBN 13 : 3039365177
Total Pages : 168 pages
Book Rating : 4.0/5 (393 download)

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Book Synopsis Environmental Barrier Coatings by : Kang N. Lee

Download or read book Environmental Barrier Coatings written by Kang N. Lee and published by MDPI. This book was released on 2020-12-29 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global increase in air travel will require commercial vehicles to be more efficient than ever before. Advanced engine hot section materials are a key technology required to keep fuel consumption and emission to a minimum in next-generation gas turbines. Ceramic matrix composites (CMCs) are the most promising material to revolutionize gas turbine hot section materials technology because of their excellent high‐temperature properties. Rapid surface recession due to volatilization by water vapor is the Achilles heel of CMCs. Environmental barrier coatings (EBCs) is an enabling technology for CMCs, since it protects CMCs from water vapor. The first CMC component entered into service in 2016 in a commercial engine, and more CMC components are scheduled to follow within the next few years. One of the most difficult challenges to CMC components is EBC durability, because failure of EBC leads to a rapid reduction in CMC component life. Key contributors to EBC failure include recession, oxidation, degradation by calcium‐aluminum‐magnesium silicates (CMAS) deposits, thermal and thermo‐mechanical strains, particle erosion, and foreign object damage (FOD). Novel EBC chemistries, creative EBC designs, and robust processes are required to meet EBC durability challenges. Engine-relevant testing, characterization, and lifing methods need to be developed to improve EBC reliability. The aim of this Special Issue is to present recent advances in EBC technology to address these issues. In particular, topics of interest include but are not limited to the following: • Novel EBC chemistries and designs; • Processing including plasma spray, suspension plasma spray, solution precursor plasma spray, slurry process, PS-PVD, EB-PVD, and CVD; • Testing, characterization, and modeling; • Lifing.

Advanced Micro- & Mesoporous Materials

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Publisher : Heron Press
ISBN 13 : 9789545802393
Total Pages : 391 pages
Book Rating : 4.8/5 (23 download)

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Book Synopsis Advanced Micro- & Mesoporous Materials by : K. Hadjiivanov

Download or read book Advanced Micro- & Mesoporous Materials written by K. Hadjiivanov and published by Heron Press. This book was released on 2008-10-31 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metallographic Polishing by Mechanical Methods, 4th Edition

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Publisher : ASM International
ISBN 13 : 1615032576
Total Pages : 361 pages
Book Rating : 4.6/5 (15 download)

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Book Synopsis Metallographic Polishing by Mechanical Methods, 4th Edition by : Leonard Ernest Samuels

Download or read book Metallographic Polishing by Mechanical Methods, 4th Edition written by Leonard Ernest Samuels and published by ASM International. This book was released on 2003-01-01 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nonlinear Optical Materials

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Publisher : Springer Science & Business Media
ISBN 13 : 9780387985817
Total Pages : 270 pages
Book Rating : 4.9/5 (858 download)

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Book Synopsis Nonlinear Optical Materials by : Jerome V. Moloney

Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.

Modelling and Simulation in Thermal and Chemical Engineering

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Publisher : Springer Science & Business Media
ISBN 13 : 9783540663881
Total Pages : 248 pages
Book Rating : 4.6/5 (638 download)

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Book Synopsis Modelling and Simulation in Thermal and Chemical Engineering by : J. Thoma

Download or read book Modelling and Simulation in Thermal and Chemical Engineering written by J. Thoma and published by Springer Science & Business Media. This book was released on 2000 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main object of this book is modeling and simulation of energetic processes by bond graphs. But even without knowledge of this powerful method it can be used to a certain extent as an introduction to simulation in thermodynamics. The book addresses advanced students, lecturers and researchers in mechanical engineering and automation as well as experienced engineers in process industries.

Trends in Vital Food and Control Engineering

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ISBN 13 : 9789535152682
Total Pages : 304 pages
Book Rating : 4.1/5 (526 download)

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Book Synopsis Trends in Vital Food and Control Engineering by : Ayman Hafiz Amer Eissa

Download or read book Trends in Vital Food and Control Engineering written by Ayman Hafiz Amer Eissa and published by . This book was released on 2012 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an example of a successful addition to the literature of bioengineering and processing control within the scientific world. The book is divided into twelve chapters covering: selected topics in food engineering, advances in food process engineering, food irradiation, food safety and quality, machine vision, control systems and economics processing. All chapters have been written by renowned professionals working in food engineering and related disciplines.

Progress in Clean Energy, Volume 2

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Publisher : Springer
ISBN 13 : 9783319170305
Total Pages : 0 pages
Book Rating : 4.1/5 (73 download)

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Book Synopsis Progress in Clean Energy, Volume 2 by : Ibrahim Dincer

Download or read book Progress in Clean Energy, Volume 2 written by Ibrahim Dincer and published by Springer. This book was released on 2015-11-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This expansive reference provides readers with the broadest available single-volume coverage of leading-edge advances in the development and optimization of clean energy technologies. From innovative biofuel feed stocks and processing techniques, to novel solar materials with record-breaking efficiencies, remote-sensing for offshore wind turbines to breakthroughs in high performance PEM fuel cell electrode manufacturing, phase change materials in green buildings to bio sorption of pharmaceutical pollutants, the myriad exciting developments in green technology described in this book will provide inspiration and information to researchers, engineers and students working in sustainability around the world.

Food Safety

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Publisher : Academic Press
ISBN 13 : 0128004045
Total Pages : 466 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Food Safety by : Steven Ricke

Download or read book Food Safety written by Steven Ricke and published by Academic Press. This book was released on 2015-07-08 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food Safety: Emerging Issues, Technologies and Systems offers a systems approach to learning how to understand and address some of the major complex issues that have emerged in the food industry. The book is broad in coverage and provides a foundation for a practical understanding in food safety initiatives and safety rules, how to deal with whole-chain traceability issues, handling complex computer systems and data, foodborne pathogen detection, production and processing compliance issues, safety education, and more. Recent scientific industry developments are written by experts in the field and explained in a manner to improve awareness, education and communication of these issues. Examines effective control measures and molecular techniques for understanding specific pathogens Presents GFSI implementation concepts and issues to aid in implementation Demonstrates how operation processes can achieve a specific level of microbial reduction in food Offers tools for validating microbial data collected during processing to reduce or eliminate microorganisms in foods

Advances in Food Traceability Techniques and Technologies

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Publisher : Woodhead Publishing
ISBN 13 : 0081003218
Total Pages : 404 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Advances in Food Traceability Techniques and Technologies by : Montserrat Espiñeira

Download or read book Advances in Food Traceability Techniques and Technologies written by Montserrat Espiñeira and published by Woodhead Publishing. This book was released on 2016-06-18 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Food Traceability Techniques and Technologies: Improving Quality Throughout the Food Chain covers in detail a topic of great importance to both the food industry which is obliged to provide clear and accurate labeling of their products and the government and other organizations which are tasked with verification of claims of food quality and safety. The traceability of food products is becoming ever more important as globalization continues to increase the complexity of food chains. Coverage in the book includes the wide range of technologies and techniques which have been utilized in the tracing of food products. In addition, the ways in which the misuse of food traceability will affect the quality of food is also covered throughout. The first part of the book introduces the concept of traceability in the food industry, highlighting advantages of a robust traceability and the difficulties involved in implementing them. The second part looks at the technologies used to trace products, and the third section reviews the legal requirements for food traceability in the EU, the US, and the rest of the world. The final section contains a number of case studies which evaluate how food traceability has been successfully implemented in various foods focusing on the quality of the food. Provides a wide ranging overview of all recent advances in food traceability techniques and technologies Presents case studies covering when food traceability techniques have been applied to a range of food stuffs Covers the legal aspects of food traceability in the EU, the USA, and around the world

Forest Fire Research

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Publisher :
ISBN 13 : 9789892021577
Total Pages : 355 pages
Book Rating : 4.0/5 (215 download)

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Book Synopsis Forest Fire Research by : Universidade de Coimbra

Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: