Surface Properties Of Complex Intermetallics At The Nanoscale

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Surface Properties of Complex Intermetallics at the Nanoscale

Author : Kanika Anand
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis Surface Properties of Complex Intermetallics at the Nanoscale by : Kanika Anand

Download or read book Surface Properties of Complex Intermetallics at the Nanoscale written by Kanika Anand and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complex metallic alloys (CMAs) are intermetallic compounds possessing a large unit cell containing several tens to hundreds of atoms. Their structure can be described alternatively by the packing of highly symmetric atomic clusters. Clathrate (or cage) compounds are a new class of CMAs having a crystal structure described by a complex arrangement of covalently-bonded cages. The Ba8Au5.25Ge40.75 type-I clathrate is one such cage compound, whose bulk properties have been (and still are) extensively explored for thermoelectric applications. In fact, it is possible to tune the compound electronic structure by a fine control of its bulk composition. Regarding the properties of the Ba8Au5.25Ge40.75 surface, information remains scarce if not inexistent. However, it is known that the surfaces of CMAs often exhibit interesting surface properties. To this end, we have studied two low-index surfaces: BaAuGe(100) and BaAuGe(110) by a combination of experimental (XPS; LEED; STM) and computational (DFT) methods. Experimental results show no evidence for surface segregation and LEED patterns are consistent with (1x1) bulk terminations with no surface reconstruction. The interplay between the 3D nano-caged structure and 2D surfaces is investigated. We demonstrate that the surface structures of the two surfaces considered preserve the bulk structure cages in addition to an ordered arrangement of surface Ba atoms. The two surfaces are formed by a breakage of highly directional covalent bonds present within the framework, hence leading to destabilizing dangling bonds. Ab initio calculations show that the surface structure is stabilized through electron charge transfer from protruding Ba to surface Ge and Au atoms, saturating the dangling bonds. This charge-balance mechanism lifts the possible surface reconstruction envisaged. We reveal how the surface nanostructuration is surface orientation dependent. The results indicate that the surface electronic structure of BaAuGe(110) is impacted by the Au surface concentration. The surface models for BaAuGe(100) and BaAuGe(110) present a metallic character and low work function values, useful for further applications. Such structurally complex surfaces may also be used as templates for novel nanoscale architectures. Further in this work, we also applied the state-of-the-art surface science techniques to investigate the wetting properties of Al-based CMAs. In these experiments, chemically inert Pb element was used as a metal probe. Systematic analysis is done to find the correlation between the wetting properties and the electronic structure properties of these CMAs. Interfacial energy calculations have been performed to model the Pb/CMA interface based on few approaches reported in literature. We have tested these approaches on a moiré patterned Pb(111)/Al(111) interface. This interface is found to be controlled by geometric factors. Hence, an acquired understanding was applied to Pb deposited on Al13Co4(100) (Al-rich side) interface.

Mechanical Properties of Complex Intermetallics

Author : Esther Belin-Ferr
Publisher : World Scientific
ISBN 13 : 9814322164
Total Pages : 468 pages
Book Rating : 4.8/5 (143 download)

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Book Synopsis Mechanical Properties of Complex Intermetallics by : Esther Belin-Ferr

Download or read book Mechanical Properties of Complex Intermetallics written by Esther Belin-Ferr and published by World Scientific. This book was released on 2011 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will be the last one in a series of 4 books issued yearly as a deliverable of the research school established within the European Network of Excellence CMA (for Complex Metallic Alloys). It is written by reputed experts in the fields of metal physics, surface physics and chemistry, metallurgy and process engineering, combining expertise found inside as well as outside the network. The CMA network focuses on the huge group of largely unknown multinary alloys and compounds formed with crystal structures based on giant unit cells containing clusters, with many tens up to more than thousand atoms per unit cell. In these phases, for many phenomena, the physical length scales are substantially smaller than the unit-cell dimension. Hence, these materials offer unique combinations of properties, which are mutually excluded in conventional materials: metallic electric conductivity combined with low thermal conductivity, combination of good light absorption with high-temperature stability, combination of high metallic hardness with reduced wetting by liquids, electrical and thermal resistance tuneable by composition variation, excellent resistance to corrosion, reduced cold-welding and adhesion, enhanced hydrogen storage capacity and light absorption, etc. The series of books will concentrate on: development of fundamental knowledge with the aim of understanding materials phenomena, technologies associated with the production, transformation and processing of knowledge-based multifunctional materials, surface engineering, support for new materials development and new knowledge-based higher performance materials for macro-scale applications.

Properties And Applications Of Complex Intermetallics

Author : Esther Belin-ferre
Publisher : World Scientific
ISBN 13 : 981446838X
Total Pages : 458 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Properties And Applications Of Complex Intermetallics by : Esther Belin-ferre

Download or read book Properties And Applications Of Complex Intermetallics written by Esther Belin-ferre and published by World Scientific. This book was released on 2009-08-11 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complex metal alloys (CMAs) comprise a huge group of largely unknown alloys and compounds, where many phases are formed with crystal structures based on giant unit cells containing atom clusters, ranging from tens of to more than thousand atoms per unit cell. In these phases, for many phenomena, the physical length scales are substantially smaller than the unit-cell dimension. Hence, these materials offer unique combinations of properties which are mutually exclusive in conventional materials, such as metallic electric conductivity combined with low thermal conductivity, good light absorption with high-temperature stability, high metallic hardness with reduced wetting by liquids, etc.This book is the second of a series of books issued yearly as a deliverable to the European Community of the School established within the European Network of Excellence CMA. Written by reputed experts in the fields of metal physics, surface physics, surface chemistry, metallurgy, and process engineering, this book brings together expertise found inside as well as outside the network to provide a comprehensive overview of the current state of knowledge in CMAs.

Mechanical Properties Of Complex Intermetallics

Author : Esther Belin-ferre
Publisher : World Scientific
ISBN 13 : 981446418X
Total Pages : 468 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Mechanical Properties Of Complex Intermetallics by : Esther Belin-ferre

Download or read book Mechanical Properties Of Complex Intermetallics written by Esther Belin-ferre and published by World Scientific. This book was released on 2010-11-22 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will be the last one in a series of 4 books issued yearly as a deliverable of the research school established within the European Network of Excellence CMA (for Complex Metallic Alloys). It is written by reputed experts in the fields of metal physics, surface physics and chemistry, metallurgy and process engineering, combining expertise found inside as well as outside the network.The CMA network focuses on the huge group of largely unknown multinary alloys and compounds formed with crystal structures based on giant unit cells containing clusters, with many tens up to more than thousand atoms per unit cell. In these phases, for many phenomena, the physical length scales are substantially smaller than the unit-cell dimension. Hence, these materials offer unique combinations of properties, which are mutually excluded in conventional materials: metallic electric conductivity combined with low thermal conductivity, combination of good light absorption with high-temperature stability, combination of high metallic hardness with reduced wetting by liquids, electrical and thermal resistance tuneable by composition variation, excellent resistance to corrosion, reduced cold-welding and adhesion, enhanced hydrogen storage capacity and light absorption, etc.The series of books will concentrate on: development of fundamental knowledge with the aim of understanding materials phenomena, technologies associated with the production, transformation and processing of knowledge-based multifunctional materials, surface engineering, support for new materials development and new knowledge-based higher performance materials for macro-scale applications.

Modeling of Complex Interfaces: From Surface Chemistry to Nano Chemistry

Author : Frederik Tielens
Publisher : MDPI
ISBN 13 : 3039361945
Total Pages : 166 pages
Book Rating : 4.0/5 (393 download)

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Book Synopsis Modeling of Complex Interfaces: From Surface Chemistry to Nano Chemistry by : Frederik Tielens

Download or read book Modeling of Complex Interfaces: From Surface Chemistry to Nano Chemistry written by Frederik Tielens and published by MDPI. This book was released on 2020-12-02 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introducing the interdisciplinary field of interface chemistry modelling across a wide range of academic disciplines and industry sectors. Ten original research articles are presented that bridge knowledge acquisition and practical work, providing a starting point for the research and development of applications. The book describes the characterization of interfaces at the nanoscale, using a wide range of key nanomaterials, such as graphene, TiO2, zeolites, semimetals, and organic polymers; and the study of their different physical chemical properties, such as catalysis, adsorption, friction, diffusion, and the characterization of nanocomposites and heterojunctions, with many different industrial applications. The resulting collection of papers is equally relevant for advanced students (senior and graduate) and for engineers and scientists from a variety of different academic backgrounds working in the multidisciplinary field of nanotechnology.

Nanoscale Properties of Self-assembled and Laterally Nanostructured Surface Systems

Author : Marcos Paradinas Aranjuelo
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis Nanoscale Properties of Self-assembled and Laterally Nanostructured Surface Systems by : Marcos Paradinas Aranjuelo

Download or read book Nanoscale Properties of Self-assembled and Laterally Nanostructured Surface Systems written by Marcos Paradinas Aranjuelo and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Surface and Subsurface Physical and Chemical Characterization of Materials at the Nanoscale

Author : Laurene Tetard
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (72 download)

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Book Synopsis Surface and Subsurface Physical and Chemical Characterization of Materials at the Nanoscale by : Laurene Tetard

Download or read book Surface and Subsurface Physical and Chemical Characterization of Materials at the Nanoscale written by Laurene Tetard and published by . This book was released on 2010 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discontinuity in the atomic fabric of materials that defines the transition into a new medium gives rise to intriguing properties. Examples include the electronic tunneling behavior in scanning tunneling microscope or gigantic enhancement in the Raman emission from molecules near the surfaces of noble metals. In modern microscopy, spatial and spectral resolutions are of great importance in tackling questions related to material properties. The emergence of the atomic force microscopy (AFM), which surpasses what can be achieved optically due to the inherent diraction limit, has opened numerous opportunities for investigating surfaces. However, a contemporary challenge in nanoscience is the non-destructive characterization of materials. The ability to non-invasively explore subsurface domains for presence of inhomogeneities is of tremendous importance. In addition, techniques providing both physical and chemical information are needed to reach a comprehensive understanding of the composition and behavior of complex systems. In order to tackle the subsurface and spectral imaging, here we propose to make use of the nonlinear interaction forces between the atoms of an AFM probe tip and those of a given sample surface. Such forces are known to contain a short range repulsive component and a long range van der Waals attractive contribution. This interfacial force can give rise to a multiple-order nanomechanical coupling between the probe and the sample, offering tremendous potential for obtaining a host of material characteristics. By applying a multi-harmonic mechanical forcing to the probe and another multi-harmonic forcing to the sample, we obtain, via frequency mixing a series of new operational modes. By varying the nature of the excitations, using elastic or photonic coupling, it is possible to obtain physical and chemical signature of a heterogeneous medium with nanoscale resolution. The technique, termed mode synthesizing atomic force microscopy (MSAFM) is therefore described as a generalized multifrequency AFM. We highlight the versatility of MSAFM and its potential to contribute to important problems in material sciences, toxicology and energy research, by presenting three specic studies: 1- imaging buried nanofabricated structures; 2- investigating the presence and distribution of embedded nanoparticles in a cell; and 3- characterizing the complex structures of plant cells.

Surface Properties And Engineering Of Complex Intermetallics

Author : Esther Belin-ferre
Publisher : World Scientific
ISBN 13 : 9814465011
Total Pages : 408 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Surface Properties And Engineering Of Complex Intermetallics by : Esther Belin-ferre

Download or read book Surface Properties And Engineering Of Complex Intermetallics written by Esther Belin-ferre and published by World Scientific. This book was released on 2010-02-25 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the third in a series of 4 books issued yearly as a deliverable of the research school established within the European Network of Excellence CMA (for Complex Metallic Alloys). It is written by reputed experts in the fields of surface physics and chemistry, metallurgy and process engineering, combining expertise found inside as well as outside the network.The CMA network focuses on the huge group of largely unknown multinary alloys and compounds formed with crystal structures based on giant unit cells containing clusters, with many tens or up to more than thousand atoms per unit cell. In these phases, for many phenomena, the physical length scales are substantially smaller than the unit-cell dimension. Hence, these materials offer unique combinations of properties, which are mutually excluded in conventional materials: metallic electric conductivity combined with low thermal conductivity, combination of good light absorption with high-temperature stability, combination of high metallic hardness with reduced wetting by liquids, electrical and thermal resistance tuneable by composition variation, excellent resistance to corrosion, reduced cold-welding and adhesion, enhanced hydrogen storage capacity and light absorption, etc.The series of books will concentrate on: development of fundamental knowledge with the aim of understanding materials phenomena, technologies associated with the production, transformation and processing of knowledge-based multifunctional materials, surface engineering, support for new materials development and new knowledge-based higher performance materials for macro-scale applications.

21st Century Nanoscience – A Handbook

Author : Klaus D. Sattler
Publisher : CRC Press
ISBN 13 : 1000699390
Total Pages : 489 pages
Book Rating : 4.0/5 (6 download)

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Book Synopsis 21st Century Nanoscience – A Handbook by : Klaus D. Sattler

Download or read book 21st Century Nanoscience – A Handbook written by Klaus D. Sattler and published by CRC Press. This book was released on 2020-04-02 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 21st Century Nanoscience Handbook will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics, by the same editor, published in the fall of 2010, embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. The fifth volume in a ten-volume set covers exotic nanostructures and quantum systems. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanoscience extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.

21st Century Nanoscience

Author : Klaus D. Sattler
Publisher : CRC Press
ISBN 13 : 1351260553
Total Pages : 4153 pages
Book Rating : 4.3/5 (512 download)

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Book Synopsis 21st Century Nanoscience by : Klaus D. Sattler

Download or read book 21st Century Nanoscience written by Klaus D. Sattler and published by CRC Press. This book was released on 2022-01-18 with total page 4153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 21st Century Nanoscience Handbook will be the most comprehensive, up-to-date large reference work for the field of nanoscience. Handbook of Nanophysics, by the same editor, published in the fall of 2010, was embraced as the first comprehensive reference to consider both fundamental and applied aspects of nanophysics. This follow-up project has been conceived as a necessary expansion and full update that considers the significant advances made in the field since 2010. It goes well beyond the physics as warranted by recent developments in the field. Key Features: Provides the most comprehensive, up-to-date large reference work for the field. Chapters written by international experts in the field. Emphasises presentation and real results and applications. This handbook distinguishes itself from other works by its breadth of coverage, readability and timely topics. The intended readership is very broad, from students and instructors to engineers, physicists, chemists, biologists, biomedical researchers, industry professionals, governmental scientists, and others whose work is impacted by nanotechnology. It will be an indispensable resource in academic, government, and industry libraries worldwide. The fields impacted by nanoscience extend from materials science and engineering to biotechnology, biomedical engineering, medicine, electrical engineering, pharmaceutical science, computer technology, aerospace engineering, mechanical engineering, food science, and beyond.

Mechanical Properties of Cementitious Materials at Microscale

Author : Ya Wei
Publisher : Springer Nature
ISBN 13 : 9811968837
Total Pages : 477 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Mechanical Properties of Cementitious Materials at Microscale by : Ya Wei

Download or read book Mechanical Properties of Cementitious Materials at Microscale written by Ya Wei and published by Springer Nature. This book was released on 2022-11-14 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides information on characterizing the microstructure and mechanical properties of cementitious materials at microscale. Specifically, with the intention to provide the methods of preparing the samples for the micro-scale mechanical testing, to address the techniques for measuring and analyzing the elastic modulus, the stiffness, and the fracture toughness of cementitious materials at micro scale by instrumented indentation, to describe a method for measuring and interpreting creep behavior of cementitious materials at micro scale, and to demonstrate the homogenization method for obtaining the mechanical properties of cementitious materials across scales. The information in this book is helpful to a wide readership in the field of civil engineering and materials science working with cementitious materials and other composite materials.

Surface Engineering

Author : M.K. Lei
Publisher : Trans Tech Publications Ltd
ISBN 13 : 3038131881
Total Pages : 870 pages
Book Rating : 4.0/5 (381 download)

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Book Synopsis Surface Engineering by : M.K. Lei

Download or read book Surface Engineering written by M.K. Lei and published by Trans Tech Publications Ltd. This book was released on 2008-03-07 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS). The theme of this collection was Innovation and Development of Surface Engineering Towards a Conservation-Minded Society; a timely reminder of the obligation of advanced technologies to commit to energy & resource saving and environmental protection. Surface engineering must play a more-and-more important role in energy-saving, materials-saving and environmental protection in the coming years obey the 4R (Reuse, Reduce, Recycle, Remanufacture) rule and contribute to development of the world economy.

Nanotechnology: Concepts, Methodologies, Tools, and Applications

Author : Management Association, Information Resources
Publisher : IGI Global
ISBN 13 : 1466651261
Total Pages : 1654 pages
Book Rating : 4.4/5 (666 download)

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Book Synopsis Nanotechnology: Concepts, Methodologies, Tools, and Applications by : Management Association, Information Resources

Download or read book Nanotechnology: Concepts, Methodologies, Tools, and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2014-02-28 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, devices and technologies have been significantly miniaturized from one generation to the next, providing far more potential in a much smaller package. The smallest of these recently developed tools are miniscule enough to be invisible to the naked eye. Nanotechnology: Concepts, Methodologies, Tools, and Applications describes some of the latest advances in microscopic technologies in fields as diverse as biochemistry, materials science, medicine, and electronics. Through its investigation of theories, applications, and new developments in the nanotechnology field, this impressive reference source will serve as a valuable tool for researchers, engineers, academics, and students alike.

Complex Metallic Alloys

Author : Jean-Marie Dubois
Publisher : John Wiley & Sons
ISBN 13 : 3527633049
Total Pages : 428 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Complex Metallic Alloys by : Jean-Marie Dubois

Download or read book Complex Metallic Alloys written by Jean-Marie Dubois and published by John Wiley & Sons. This book was released on 2010-12-13 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering fundamental research as well as real-world applications, this first book on CMAs at an introductory level treats everything from atomistic details to surface processing. Comprehensive, self-contained chapters provide readers with the latest knowledge on the most salient features of the topic, selected in terms of their relevance to potential technological applications. Edited by one of the most distinguished authorities on quasicrystals and this most important of their subclasses, the contributions elucidate aspects of CMAs from a particular viewpoint: physical and chemical characteristics in the sub-nanometer regime, mesoscale phenomena, preparation and processing of thin films, and large-scale engineering properties. The whole is rounded off by a look at the commercial potential of CMA-based applications. For PhD students and lecturers alike.

Complex Concentrated Alloys (CCAs)

Author : Sundeep Mukherjee
Publisher : MDPI
ISBN 13 : 3039434748
Total Pages : 278 pages
Book Rating : 4.0/5 (394 download)

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Book Synopsis Complex Concentrated Alloys (CCAs) by : Sundeep Mukherjee

Download or read book Complex Concentrated Alloys (CCAs) written by Sundeep Mukherjee and published by MDPI. This book was released on 2020-11-04 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of several unique articles on the current state of research on complex concentrated alloys, as well as their compelling future opportunities in wide ranging applications. Complex concentrated alloys consist of multiple principal elements and represent a new paradigm in structural alloy design. They show a range of exceptional properties that are unachievable in conventional alloys, including high strength–ductility combination, resistance to oxidation, corrosion/wear resistance, and excellent high-temperature properties. The research articles, reviews, and perspectives are intended to provide a wholistic view of this multidisciplinary subject of interest to scientists and engineers.

Nanoscale AFM and TEM Observations of Elementary Dislocation Mechanisms

Author : Jozef Veselý
Publisher : Springer
ISBN 13 : 3319483021
Total Pages : 112 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Nanoscale AFM and TEM Observations of Elementary Dislocation Mechanisms by : Jozef Veselý

Download or read book Nanoscale AFM and TEM Observations of Elementary Dislocation Mechanisms written by Jozef Veselý and published by Springer. This book was released on 2016-11-25 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses elementary dislocation processes occurring in single-crystalline alloys based on Fe-Al, and investigates correspondences between dislocation distribution inside crystals characterized by transmission electron microscopy (TEM) and surface patterns observed using atomic force microscopy (AFM). Fe-Al alloys with different degrees of ordering were prepared and deformed in compression at ambient temperature in-situ inside the AFM device. The evolution of slip line structures was captured in the sequences of AFM images and wavy slip bands, while cross slip at the tip of the slip band and homogeneous fine slip lines were also identified. Further, the thesis develops a technique for constructing 3D representations of dislocations observed by TEM without the prohibitive difficulties of tomography, and creates 3D models of dislocation structures. Generally speaking, the thesis finds good agreement between AFM and TEM observations, confirming the value of AFM as a relevant tool for studying dislocations.

Nano-society

Author : Michael Berger
Publisher : Royal Society of Chemistry
ISBN 13 : 1847558836
Total Pages : 332 pages
Book Rating : 4.8/5 (475 download)

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Book Synopsis Nano-society by : Michael Berger

Download or read book Nano-society written by Michael Berger and published by Royal Society of Chemistry. This book was released on 2009 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each of the chapters is based on a particular scientific paper that has been published in a peer-reviewed journal and, while each story revolves around one or two scientists who were interviewed for this book, many, if not most, of the scientific accomplishments covered in the book are the result of collaborative efforts by several scientists and research groups, often from different organizations and from different countries. The book is different to other books in this field because it provides a novel human touch to nanotechnology research by not only covering a wide range of research topics but also the (often nameless) scientists behind this research. The book is a collection of Spotlight articles from the popular Nanowerk website and each article has been crafted with the author(s) of a scientific paper and signed off by them prior to being posted on Nanowerk.