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Books > Professional & Technical > Mechanical engineering & materials > Materials science > General
Rapid evolution is taking place in the water market world wide -
driven by increased consumer demand allied to the rarefraction of
clean water. The inherent characteristics of composites materials
associated with current materials and production technology is
allowing the increased use of previously high cost materials and
processes at ever decreasing costs.
Nanogels are three-dimensional nanosized networks that are formed by physically or chemically cross-linking polymers. They have been explored as a drug-delivery system due to their biocompatibility, high stability, particle-size adjustment, drug-loading capability and modification of the surface for active targeting by cognate receptors on the target cells of tissues. Nanogels can respond to stimuli such as pH, temperature, light and redox, which results in the controlled release of drugs and targeting of site by environmental stimuli and prevents accumulation in non-target tissues, minimizing the side effects of the drug. This book aims to provide a general introduction to nanogels and the design of various stimuli-sensitive nanogels that can control drug release in response to specific stimuli.
This volume examines recent developments in the use of intelligent materials and systems for drug delivery. Controlled release technology is moving from being a simple carrier of active agents to becoming a powerful and flexible method that permits subtle modulation of the delivery profile based on the needs of the biological host. The chapters collected here cover recent advances in materials with responsive properties, novel concepts in controlled release technology, new applications, and microanalytical techniques for rapid and accurate measurements of small samples.
The purpose of this wide-ranging introductory text is to provide a
basic understanding of the underlying science as well as the
engineering applications of composite materials. It explains how
composite materials, with their advantages of high strength with
stiffness, together with low weight and other desirable properties
are formed and discusses the nature of the different types of
reinforcement and matrix - and their interaction. Methods of
production, examples of typical applications and essential data are
all included.
Nanomaterials and nanostructures are the original product of nanotechnology, and they are the key building blocks for enabling technologies. In this context, this book presents a concise overview of the synthesis and characterization methods of nanomaterials and nanostructures, while integrating facets of physics, chemistry, and engineering. The book summarizes the fundamentals and technical approaches in synthesis, and processing of nanostructures and nanomaterials, giving the reader a systematic and quick picture of the field. The text focuses on functional aspects of nanomaterials that have a high relevance to immediate applications, such as catalysis, energy harvesting, biosensing, and surface functionalization. There are chapters addressing nanostructured materials and composites, and covering basic properties and requirements of this new class of engineered materials.
This book provides an introduction to topological matter, with a focus on insulating bulk systems. A number of prerequisite concepts and tools are first laid out, including the notion of symmetry transformations, the band theory of semiconductors and aspects of electronic transport. The main part of the book discusses realistic models for both time-reversal-preserving and -violating topological insulators, as well as their characteristic responses to external perturbations. Special emphasis is given to the study of the anomalous electric, thermal and thermoelectric transport properties, the theory of orbital magnetisation, and the polar Kerr effect. The topological models studied throughout this book become unified and generalised by means of the tenfold topological-classification framework and the respective systematic construction of topological invariants. This approach is further extended to topological superconductors and topological semimetals. This book covers a wide range of topics and aims for a transparent presentation of the technical aspects involved. For this purpose, homework problems are also provided in dedicated hands-on sections. Given its structure, and the required background level of the reader, this book is particularly recommended for graduate students or researchers who are new to the field.
With the gradual development of rules for designing against
instability the idea emerged, in London, in 1974 to hold an
International Colloquium treating every aspect of structural
instability of steel structures.
The inspiration for this book came from an American Carbon Society
Workshop entitled "Carbon Materials for Advanced Technologies"
which was hosted by the Oak Ridge National Laboratory in 1994.
Chapter 1 contains a review of carbon materials, and emphasizes the
structure and chemical bonding in the various forms of carbon,
including the four allotropes diamond, graphite, carbynes, and the
fullerenes. In addition, amorphous carbon and diamond films, carbon
nanoparticles, and engineered carbons are discussed. The most
recently discovered allotrope of carbon, "i.e.," the fullerenes,
along with carbon nanotubes, are more fully discussed in Chapter 2,
where their structure-property relations are reviewed in the
context of advanced technologies for carbon based materials. The
synthesis, structure, and properties of the fullerenes and
nanotubes, and modification of the structure and properties through
doping, are also reviewed. Potential applications of this new
family of carbon materials are considered. The manufacture and
applications of adsorbent carbon fibers are discussed in Chapter 3.
The manufacture, structure and properties of high performance
fibers are reviewed in Chapter 4, and the manufacture and
properties of vapor grown fibers and their composites are reported
in Chapter 5. The properties and applications of novel low density
composites developed at Oak Ridge National Laboratory are reported
in Chapter 6. Coal is an important source of energy and an abundant
source of carbon. The production of engineering carbons and
graphite from coal via a solvent extraction route is described in
Chapter 7. Applications of activated carbons are discussed in
Chapters 8-10, including their use in the automotive arena as
evaporative loss emission traps (Chapter 8), and in vehicle natural
gas storage tanks (Chapter 9). The application of activated carbons
in adsorption heat pumps and refrigerators is discussed in Chapter
10. Chapter 11 reports the use of carbon materials in the fast
growing consumer electronics application of lithium-ion batteries.
The role of carbon materials in nuclear systems is discussed in
Chapters 12 and 13, where fusion device and fission reactor
applications, respectively, are reviewed. In Chapter 12 the major
technological issues for the utilization of carbon as a plasma
facing material are discussed in the context of current and future
fusion tokamak devices. The essential design features of graphite
moderated reactors, (including gas-, water- and molten salt-cooled
systems) are reviewed in Chapter 13, and reactor environmental
effects such as radiation damage and radiolytic corrosion are
discussed. The fracture behaviour of graphite is discussed in
qualitative and quantitative terms in Chapter 14. The applications
of Linear Elastic Fracture Mechanics and Elastic-Plastic Fracture
Mechanics to graphite are reviewed and a study of the role of small
flaws in nuclear graphites is reported.
The rapid technological developments during the later half of the
20th century have demanded materials that are stronger, capable of
use at much higher temperatures, more corrosion-resistant, and much
less expensive than those currently used. These demands become even
more significant on the threshold of the new century and the
millennium. Significant improvements in properties can only be
achieved by processing the materials under far-from-equilibrium (or
non-equilibrium) conditions. Several new processing technologies
have been developed during the past few decades including, rapid
solidification, spray forming, mechanical alloying, ion mixing,
vapor deposition, laser processing and plasma processing. Remarkable advances have been made in recent years in the
science and technology of these processes used to synthesize,
characterize, and apply these materials processed under
non-equilibrium conditions. Some of these techniques have evolved
from laboratory curiosity to commercial-scale manufacturing in just
a few years. In other cases, industrial necessity prompted
development of the technology, and the science followed
later. The chapters in this book have been written by people who are
world-recognized experts in their respective fields. Each chapter
describes the principles, processing techniques, special features
of the materials produced, and their applications. An extensive
list of references is provided at the end of each chapter that will
facilitate location of additional information on specific aspects
of any technique.
The ESIS-Technical Committee 9 on Concrete was established in 1990
and has met seven times. A proposal was put to European and
extra-European laboratories entitled "Scale effects and
transitional failure phenomena of reinforced concrete beams in
flexure" which lead to several positive responses. The central topic discussed by the committee was that of the
minimum reinforcement in concrete members. The minimum amount of
reinforcement is defined as that for which "peak load at first
concrete cracking" and "ultimate load after steel yielding" are
equal. In this way, any brittle behaviour is avoided as well as any
localized failure, if the member is not over-reinforced. In other
words, there is a reinforcement percentage range, depending on the
size-scale, within which the plastic limit analysis may be applied
with its static and kinematic theorems. Carpinteri, Ferro, Bosco and El-Katieb propose a LEFM model,
according to which reinforcement reactions are applied directly on
the crack surfaces and a compatibility condition is locally imposed
on the crack opening displacement in correspondence with the
reinforcement. The theoretical model is found to provide a
satisfactory estimate of the minimum percentage of reinforcement
that depends on the scale and enables the element in flexure to
prevent brittle failure.
Engineers need to be familiar with the fundamental principles and concepts in materials and structures in order to be able to design structurers to resist failures. For 4 decades, this book has provided engineers with these fundamentals. Thoroughly updated, the book has been expanded to cover
everything on materials and structures that engineering students
are likely to need. Starting with basic mechanics, the book goes on
to cover modern numerical techniques such as matrix and finite
element methods. There is also additional material on composite
materials, thick shells, flat plates and the vibrations of complex
structures. Illustrated throughout with worked examples, the book
also provides numerous problems for students to attempt.
This collection of 185 papers results from contributions made at
Electroceramics VI which forms part of the joint triple meeting
held in Montreaux, Switzerland in August 1998. The joint meeting
covered recent advances in the broad and rapidly progressing field
of electroceramics, ferroelectrics and polar dielectrics. More than
550 papers were presented at the triple meeting (250 of them at
Electorceramics VI '98) including a series of plenary lectures
highlighting research areas of strong current and emerging
interests. The meeting demonstrated the wide variety of new
applications being developed, based in particular on
ferroelectrics, polar dielectrics, ionic conductors and any other
functional ceramics. In comparison with previous meetings, the present one showed the growing importance of surfaces, interfaces and other boundaries, e.g. domain walls. Size effects and questions related to nanotechnology were comprehensively discussed both on the academic level and for device realizations. Microdevices and their integration problems (and solutions) were at the heart of many reports. The papers reflected the extensive activities in this interdisciplinary area, while the balance between presentations from academic laboratories and from industrial R&D laboratories was a testimony to its vitality. The volume contains 185 papers selected after refereeing of the 220 papers submitted for publication.
The sea is steadily rising, presently at 3.4 mm per year, and it is already costing billions in Venice, on the Thames river and in New York City, to counter sea-level-related surges. Experts anticipate an accelerated rise, and credible predictions for sea-level rise by the year 2100 range from 12 inches to above six feet. Study of the Earth's geologic history, through ice-core samples, links sea-level rise to temperature rise. Since the lifetime of carbon dioxide in the atmosphere is measured in centuries, and it has upset the balance of incoming and outgoing energy, the Earth's temperature will continue to rise, even if carbon burning ceases. Engineering the Earth's solar input appears increasingly attractive and practical as a means to lower the Earth's temperature and, thus, to lower the sea level. The cost of engineering the climate appears small; comparable, even, to the already-incurred costs of sea-level rise represented by civil engineering projects in London, Venice and New York City. Feasible deployment of geoengineering, accompanied by some reduction in carbon burning, is predicted to lower the sea level by the order of one foot by 2100, which negates the expected rise and would provide an immense economic benefit. The accompanying lower global temperature would reduce the severity of extreme weather and restore habitability to lethally hot parts of the world.
The progress in device technologies are surveyed in this volume. Included are Si/ (Si-Ge) heterojunctions for high-speed integrated circuits. Schottky-barrier arrays in Si and Si-Ge alloys for infrared imaging, III-V quantum-well detector structures operated in the heterodyne mode for high-data-rate communications, and III-V heterostructures and quantum-wells for infrared transmissions.
These proceedings contain the reviewed papers presented at the
Symposium J on "Ion Implantation into Semiconductors, Oxides and
Ceramics," which was held at the Spring Meeting of the European
Materials Research Society in Strasbourg, France, 16-19, June 1998.
The symposium attracted 110 contributions, with authors from 31
nations in 5 continents. It was thereby the largest in a series of
E-MRS ion beam symposia, documenting the importance of ion beam
techniques and research in this area.
Thin-plated structures are used extensively in building
construction, automobile, aircraft, shipbuilding and other
industries because of a number of favourable factors such as high
strength-weight ratio, development of new materials and processes
and the availability of efficient analytical methods. This class of
structure is made by joining thin plates together at their edges
and they rely for their rigidity and strength upon the tremendous
stiffness and load-carrying capacity of the flat plates from which
they are made. Many of the problems encountered in these structures
arise because of the effects of local buckling. The knowledge of
various facets of this phenomenon has increased dramatically since
the 1960s. Problem areas which were hitherto either too complex for
rigorous analysis or whose subtleties were not fully realized have
in these years been subjected to intensive study. Great advances
have been made in the areas of inelastic buckling. The growth in
use of lightweight strong materials, such as fibre-reinforced
plastics has also been a contributory factor towards the need for
advances in the knowledge of the far post-buckling range. The
conference is a sequel to the international conference organised by
the University of Strathclyde in December 1996 and this
international gathering will provide the opportunity for discussion
of recent developments and trends in design of thin-walled
structures.
From the Preface The purpose of this book is to present within a single volume, detailed information concerning the science, processing, applications, characterization and properties of composite materials reinforced with short fibres that have been oriented in a preferred direction by flows arising during processing. This book is intended to be useful to . . . materials scientists and other specialists in the field . . . and engineers, designers and producers of composites reinforced with short fibres. To our knowledge, this is the first time information pertaining to this important class of engineering materials has been systematically presented within a single volume. The purpose of aligning short fibres in a fibre-reinforced material is to improve the mechanical properties of the resulting composite. Aligning the fibres, generally in a preferred direction, allows them to contribute as much as possible to reinforcing the material. In some instances, the mechanical properties of these aligned, short-fibre composites can approach those of continuous-fibre composites, with the added advantage of low production costs and greater ease of production. The book covers theory, processing, characterization and properties. More specifically, the topics considered . . . include fibre alignment and material rheology; processes that can produce fibre alignment in polymeric, liquid crystal polymeric and metallic composites; materials characterization and mechanical properties; and modelling of processes and material properties.
This text provides a uniform and consistent approach to diversified
problems encountered in the study of dynamical processes in
condensed phase molecular systems. Given the broad
interdisciplinary aspect of this subject, the book focuses on three
themes: coverage of needed background material, in-depth
introduction of methodologies, and analysis of several key
applications. The uniform approach and common language used in all
discussions help to develop general understanding and insight on
condensed phases chemical dynamics. The applications discussed are
among the most fundamental processes that underlie physical,
chemical and biological phenomena in complex systems.
Process Modelling and simulation have proved to be extremely
successful engineering tools for the design and optimisation of
physical, chemical and biochemical processes. The use of simulation
has expanded rapidly over the last two decades because of the
availability of large high-speed computers and indeed has become
even more widespread with the rise of the desk-top PC resources now
available to nearly every engineer and student.
These recommendations present general methods for the assessment of fatigue damage in welded components, which may affect the limit states of a structure, such as ultimate limit state and serviceability limited state. Fatigue resistance data is given for welded components made of wrought or extruded products of ferritic/pearlitic or banitic structural steels up to fy = 700 Mpa and of aluminium alloys commonly used for welded structures.
Physics of Thin Films is one of the longest running continuing
series in thin film science, consisting of twenty volumes since
1963. The series contains quality studies of the properties of
various thinfilms materials and systems.
This series provides engineers with liquid and gas viscosities for the major organic compounds as a function of temperature. The graphs are arranged by chemical formula to provide ease of use; many of them cover the full range from melting point to boiling point to critical point. Common units are used, but each graph displays a conversion factor to provide English units.
The "Concise Encyclopedia of Composite Materials," first published
as a hardbound edition in 1989, has been updated and revised and is
now available as a paperback for individual researchers requiring a
fundamental reference source for this dynamic field. Since 1989, research involving composite materials has advanced
rapidly and this revised edition reflects those changes with the
addition of new articles, including recent work on nanocomposites,
smart composite materials systems, and metallic multilayers. The 67 articles included in this revised edition are presented
in alphabetical order and each provides an introduction to one
aspect of composite materials. Every article is extensively
cross-referenced and includes a full bibliography. The volume
contains over 250 photographs, drawings and tables as well as
exhaustive subject and author indexes. The comprehensive breadth of coverage of the field of composite materials makes this volume an invaluable source of reference for materials scientists and mechanical engineers involved in industrial and academic research into the fabrication, properties and applications of composite materials.
Properties and Applications of Diamond provides a unique consolidation of all useful information, as well as a comprehensive survey of literature. No other book covers this topical field with such breadth and clarity, making it both a fundamental introduction and an invaluable on-going reference. '..very readable and has value for both the expert and the newcomer' - INDUSTRIAL DIAMOND REVIEW 'An excellent source of information for any researcher, student or industrial user' - CHOICE '..lucidly written, effectively illustrated..carefully referenced and logically presented' - AUSTRALIAN GEMMOLOGIST 'It is unique amongst other books of this type' - MATERIALS FORUM
MIC (microbiologically influenced corrosion) is the deterioration of metal by corrosion processes that occur either directly or indirectly as a result of the activity of living organisms. This handbook explains the interdisciplinary nature of MIC - the roles of microbiology, metallurgy and electro-chemistry are interrelated and complex. The text also looks at welding, heat treatment and other metallurgical and process variables relate to corrosion resistance, special emphasis being placed on MIC. Case histories are included and the means of detection, diagnosis and monitoring are discussed. Prevention, mitigation and replacement of MIC are also examined. |
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