Download or read book Synth se et caract risation de films minces d oxyde de titane TiO2 d pos s par ablation laser sur un substrat polym rique written by Nadine Lobstein and published by . This book was released on 1991 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Deposition of Ceramic Thin Films from Aqueous Solutions at Low Temperatures written by Guangneng Zhang and published by ProQuest. This book was released on 2008 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic thin films have received substantial interest and found numerous applications. A novel ceramic thin films deposition technique has been developed and studied systematically. This technique employs controlled hydrolysis of inorganic salt as precursor from aqueous solutions at low temperature. It starts with the nucleation followed by growth of the particles. The nucleation can take place through homogeneous or heterogeneous nucleation. One of the determining parameters seems to the degree of supersaturation, which is the thermodynamic driving force for nucleation. In light of this, our work first focused on the definition and calculation of degree of supersaturation, and our experiments then indicated the role of degree of supersaturation in nucleation and growth and further deposition processes. We found that homogeneous nucleation is prevalence when degree of supersaturation is high enough, while heterogeneous nucleation can play a more important role when degree of supersaturation is low enough. The growing film can avoid lattice strain between different microstructures. It seems that the preference toward either of the two mechanisms results in distinct film microstructures and morphologies. This diversity introduced two more research areas, one in modeling of intermolecular forces, and the other in film properties. Specifically, we have studied the deposition of ZrO2, TiO2, and SnO2 thin films on various substrates including bare Si and self-assembled monolayer (SAM)-coated Si substrates. We found that all the films can be deposited on both substrates. In addition, we found the TiO2 films display a large variety of morphologies, from very dense particulate structure to dendritic structure, due to different degrees of supersaturation. From classic nucleation theory and experiments, we determined the interfacial energy and critical nuclei diameter for nucleation of TiO2 to be 0.072 J·m-2 and typically 0.5 nm, respectively. We developed a quantitative approach to employ the DLVO theory to explain deposition behaviors and provide theoretical guideline for material design. Dynamic nanoindentations suggested moduli of TiO2, ZrO2 and SnO2 films were 27.95, 21.72, and 11.94 GPa, respectively. Dye penetration test indicated great potential of TiO2 films in hermetic package. Refractive index of the as-deposited TiO2 films was 1.7824±0.0172 (at 590.44 nm) determined by ellipsometry.

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.

Download or read book Dictionary of the French and English Languages written by Gabriel Surenne and published by . This book was released on 1856 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multifunctional Oxide Heterostructures written by Evgeny Y. Tsymbal and published by OUP Oxford. This book was released on 2012-08-30 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the rapidly developing field of oxide thin-films and heterostructures. Oxide materials combined with atomic-scale precision in a heterostructure exhibit an abundance of macroscopic physical properties involving the strong coupling between the electronic, spin, and structural degrees of freedom, and the interplay between magnetism, ferroelectricity, and conductivity. Recent advances in thin-film deposition and characterization techniques made possible the experimental realization of such oxide heterostructures, promising novel functionalities and device concepts. The book consists of chapters on some of the key innovations in the field over recent years, including strongly correlated oxide heterostructures, magnetoelectric coupling and multiferroic materials, thermoelectric phenomena, and two-dimensional electron gases at oxide interfaces. The book covers the core principles, describes experimental approaches to fabricate and characterize oxide heterostructures, demonstrates new functional properties of these materials, and provides an overview of novel applications.

Download or read book Constitution of Binary Alloys written by Max Hansen and published by . This book was released on 1958 with total page 1332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ceramic Abstracts written by and published by . This book was released on 1998 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Radiation Effects in Materials written by Waldemar Alfredo Monteiro and published by BoD – Books on Demand. This book was released on 2016-07-20 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of radiation effects has developed as a major field of materials science from the beginning, approximately 70 years ago. Its rapid development has been driven by two strong influences. The properties of the crystal defects and the materials containing them may then be studied. The types of radiation that can alter structural materials consist of neutrons, ions, electrons, gamma rays or other electromagnetic waves with different wavelengths. All of these forms of radiation have the capability to displace atoms/molecules from their lattice sites, which is the fundamental process that drives the changes in all materials. The effect of irradiation on materials is fixed in the initial event in which an energetic projectile strikes a target. The book is distributed in four sections: Ionic Materials; Biomaterials; Polymeric Materials and Metallic Materials.

Download or read book X Ray and Neutron Reflectivity Principles and Applications written by Jean Daillant and published by Springer Science & Business Media. This book was released on 2003-07-01 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reflection of and neutrons from surfaces has existed as an x-rays exp- imental for almost it is in the last technique fifty Nevertheless, only years. decade that these methods have become as of enormously popular probes This the surfaces and interfaces. to be due to of several appears convergence of intense different circumstances. These include the more n- availability be measured orders tron and sources that can over (so reflectivity x-ray many of and the much weaker surface diffuse can now also be magnitude scattering of thin films and studied in some the detail); growing importance multil- basic the realization of the ers in both and technology research; important which in the of surfaces and and role roughness plays properties interfaces; the of statistical models to characterize the of finally development topology its and its characterization from on roughness, dependence growth processes The of and to surface scattering experiments. ability x-rays neutro4s study four five orders of in scale of surfaces over to magnitude length regardless their and also their to ability probe environment, temperature, pressure, etc. , makes these the choice for buried interfaces often probes preferred obtaining information about the microstructure of often in statistical a global surfaces, the local This is manner to complementary imaging microscopy techniques, of such studies in the literature witnessed the veritable by explosion published the last few Thus these lectures will useful for over a resource years.

Download or read book Nanomaterials from Clay Minerals written by Aiqin Wang and published by Elsevier. This book was released on 2019-08-15 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials from Clay Minerals: A New Approach to Green Functional Materials details the structure, properties and modification of natural nanoscale clay minerals and their application as the green constituent of functional materials. Natural nanomaterials from clay minerals have diverse morphologies, from 1D to 3D, including nanorods, nanofibers, nanotubes, nanosheets and nanopores. These structures show excellent adsorption, reinforcing, supporter, electronic, catalytic and biocompatible properties and are great as sustainable alternatives for toxic or expensive artificial materials. This book provides systematic coverage of clay nanomaterials as eco-friendly resources, emphasizing the importance of such materials in a range of industries, including biomedicine, energy and electronics. This book will provide an important reference for materials scientists and engineers who have an interest in sustainable material development. Presents systematic coverage of a broad range of nanomaterials from clay minerals, including Kaolinite, Smectite and Halloysite Depicts use cases for each mineral in a variety of applications, such as drug delivery, agriculture, and in the reinforcement of polymer materials Provides an overview on the advantages and limitations of nanomaterials from clay minerals, as well as chapters on the future potential of such materials

Download or read book Materials Syntheses written by Ulrich Schubert and published by Springer Science & Business Media. This book was released on 2008-11-23 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials syntheses are more complex than syntheses of inorganic or organic compounds. Materials synthesis protocols often suffer from unclarities, irreproducibility, lack in detail and lack in standards. The need to change this situation is the main motivation for this book. It collects a number of detailed protocols, ranging from organic polymers to carbonaceous and ceramic materials, from gels to porous and layered materials and from powders and nanoparticles to films.

Download or read book Diffusion in Materials DIMAT 2011 written by Igor Bezverkhyy and published by Trans Tech Publications Ltd. This book was released on 2012-04-12 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.

Download or read book Data Storage at the Nanoscale written by Gan Fuxi and published by CRC Press. This book was released on 2015-02-09 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the big data era, data storage is one of the cores in the whole information chain, which includes production, transfer, sharing, and finally processing. Over the years, the growth of data volume has been explosive. Today, various storage services need memories with higher density and capacity. Moreover, information storage in the big data applic

Download or read book Defects in Insulating Materials written by G.E. Matthews and published by Trans Tech Publications Ltd. This book was released on 1997-01-14 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes a comprehensive international forum on defect-related phenomena in wide-gap materials, crystalline or otherwise. Materials as diverse as SiO2, group-III nitride compounds, diamond, alkali halides, refractory oxides, and polymers are covered, and the "defects" considered include intrinsic point imperfections, dislocations, accidental impurities, intentional dopants, imperfect surfaces, nanocrystals in host matrices, and bonding defects in glasses. Important unifying similarities of the phenomena are identified and investigative methods are presented which can be applied, almost across-the-board, to materials which share a wide transparency, deep traps, extensive stored energy in electron-hole pairs, and a low conduction-electron density.

Download or read book Clay Mineral Catalysis of Organic Reactions written by BENNY K.G. THENG and published by CRC Press. This book was released on 2020-06-30 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clay minerals are layer silicates with a large propensity for adsorbing and intercalating simple and polymeric organic molecules. Because of their fine particle size, extensive surface area, layer structure, and peculiar charge characteristics, clay minerals can also act as efficient solid acid catalysts and catalyst carriers/supports. Besides being easy to separate from the reaction mixture and recyclable, clay minerals are abundant, inexpensive, and nonpolluting. Moreover, layer silicates offer a reduced dimensionality of reaction space in which introduced organic species can meet and collide. This book provides an insight into the relationship between the surface properties of clay minerals and their catalytic activity. Organized into eight comprehensive chapters, the volume describes and discusses the ability of clay minerals to serve as solid acid catalysts for a large range and variety of organic conversions and transformations. This book is a valuable reference for research scientists and industrial chemists who use, or contemplate using, clay minerals as catalysts for targeted organic reactions and syntheses. The present text will also be of interest to environmental and soil chemists as well as teachers and postgraduate students of organic geochemistry and solid acid catalysis. Book jacket.

Download or read book 24th International Conference on the Physics of Semiconductors written by David Gershoni and published by World Scientific. This book was released on 1999 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of this important conference consist of plenary and invited papers published in hard copy and CD-ROM versions. The contributed oral and poster presentations are included in the CD-ROM version only.