Keramisk teknologi og glasteknologi

The design of treatments for the conservation of stone in historical buildings and works of art is a challenging task, as a deep understanding of the working properties and performance of the available products and methods is required to tackle complex decay patterns.The chapters in this book illustrate the state of the art on traditional and innovative materials and methods for stone conservation, examining current trends and future perspectives. Each of them is focused on describing the consequent phases that complement the spectrum of the conservation intervention: preliminary investigations, condition assessment, and mapping of the deterioration patterns; surface cleaning, with a specific focus on laser technology; consolidation; protection; repair mortars and grouts; and onsite assessment and monitoring of conservation treatments. The performance of the applied conservation interventions is criticized and discussed with an aim of providing the specialists with specific tools for stone conservation.   This book intends to bridge the gap between laboratory studies and conservation interventions, by linking together the diverse scientific areas involved in the preservation of stone heritage. Different case studies are included, highlighting specific conservation challenges and their solutions in order to understand and overcome them. The aim is to guide conservators, conservation scientists and heritage stakeholders in the selection of compatible and sustainable materials and techniques for Conserving Stone Heritage.

In most tribological applications, liquid or grease based lubricants are used to facilitate the relative motion of solid bodies to minimize friction and wear between interacting surfaces. The challenges for liquid lubricants arise in extreme environmental conditions, such as very high or low temperatures, vacuum, radiation, and extreme contact pressure. At these conditions, solid lubricants may be the alternative choice which can help to decrease friction and wear without incorporating liquid lubricants. Challenges with solid lubricants are to maintain a continuous supply of solid lubricants on the contact surfaces to act as lubricous layer between two sliding surfaces. Such a continuous supply is more easily maintained in the case of liquid lubricants when compared to solid lubricants. The most innovative development to ensure a continuous supply of solid lubricant to the contact surface during sliding is to introduce solid lubricant as reinforcement into the matrix of one of the sliding components. Composite materials are engineered or naturally occurring materials which contain two or more distinct constituents with significantly different chemical, physical and mechanical properties. Composites consist of reinforcement and matrix (metal, polymer and ceramics). Among various reinforcements, recent emerging material, solid lubricant, is found to have many favorable attributes such as good lubrication property. Selflubrication is the ability of a material to provide lubrication to the contact surface to decrease friction and wear rate in the absence of an external lubricant by transferring embedded solid lubricants in the composite to the interface. Self-lubricating composites (SLCs) are an important category of engineering materials that are increasingly replacing a number of conventional materials in the automotive, aerospace, and marine industries due to superior tribological properties. In SLCs, solid lubricant materials, including carbonous materials, molybdenum disulfide (MoS2), and hexagonal boron nitride (h-BN) are embedded into the matrices as reinforcements to manufacture a novel material with attractive self-lubricating properties. Several studies have been investigated the tribological properties of self-lubricating materials. This book fills that gap to have a reference book about self-lubricating materials and their properties to help scientists, engineers, and industries. This book discusses mechanisms of self-lubricating materials, self-lubricating properties and the applications for industries. The chapters will be written by authoritative expertise in the field. Additionally, this book will demonstrate fundamental study and most advanced innovations in self-lubricating materials as regards to friction and wear. The chapters also include tribological properties of composites and coatings and some practical applications of self-lubricating materials.

This book presents natural minerals used as inorganic materials, and inorganic materials exchanging cations or anions in natural minerals for other ions not found in nature. In addition, composites such as natural mineral materials that interact with organic molecules or polymers are introduced according to how they are used.Readers can refer to this volume as a guidebook to search for specific inorganic materials, and, if they wish, can consult any part of it at random. The book will be especially helpful and of interest to both scientists and engineers. 

This second edition adds newly established techniques and material properties codified in the past ten years to this authoritative reference. The volume retains its comprehensive coverage of damage and healing mechanics with updates to core topics and references and addition of other types of damages not covered in the first edition, including thermo-elastoviscoplastic damage-healing model for bituminous materials, damage in granular materials, damage in biological tissue, damage in rubber materials, damage crashworthiness in cars and airplanes, risk analysis in damaged structures, and evaluating damage with digital image correlation. The Handbook details computational modeling of constitutive equations as well as solved examples in engineering applications. A wide range of materials that engineers may encounter are covered, including metals, composites, ceramics, polymers, biomaterials, and nanomaterials. The internationally recognized team of contributors employs a consistent and systematic approach, offering readers a user-friendly reference that is ideal for frequent consultation. The Handbook of Damage Mechanics: Nano to Macro Scale for Materials and Structures, second edition is ideal for graduate students and faculty, researchers, and professionals in the fields of Mechanical Engineering, Civil Engineering, Aerospace Engineering, Materials Science, and Engineering Mechanics.

This book presents a state-of-the-art overview of the major aspects involved in the science, technology and applications of ceramics, glasses and glass-ceramics. After providing an historical perspective of the development and use of  ceramics and glasses along the Silk Road, the theoretical background and fabrication techniques of such materials are described and discussed. A special focus is dedicated to emerging high-tech applications in various fields, including medicine, energy, optics and photonics, sensors, sustainability and circular economy. The chapters are written by leading experts in their respective fields and highlight the contemporary challenges associated to each topic. This book will serve as a valuable reference for both early-stage and skilled researchers as well as industry professionals interested in the broad field of glasses and ceramics.

This book summarizes many of the recent research accomplishments in the area of polyvinylchloride (PVC)-based blends and their preparation, characterization and applications. Various sub-topics are addressed, such as the state-of-the-art of PVC based blends, new challenges and opportunities, emphasis being given to the types and sizes of components/fillers and optimum compositions of PVC blends, their processing and structure-properties relationships, modification/compatibilization methods, and possible applications. PVC/thermoplastic based nano, micro and macro blends, PVC membranes, bio-based plasticizers and PVC blends with components from renewable resources are reported. The various chapters in this book are contributed by prominent researchers from industry, academia and government/private research laboratories across the globe. It covers an up-to-date record on the major findings and observations in the field of PVC-based blends.

The book focuses on joining of advanced materials such as ceramics, intermetallics, laminated materials, composite materials and functional materials considering both in theory and in practice. It also covers details of joint design, weldability and quality assurance of the product. Both principles and engineering practice have been addressed to show advanced, scientific and novelty features. The latest research on advanced joining technology is one of the major features of the book, which is particularly suited for readers who are interested to learn practical solutions in joining of advanced materials. The book can benefit researchers, engineers and graduate students in the fields of joining, materials design and manufacturing, etc.

The text explores the development, use, and effect of additive manufacturing and digital manufacturing technologies for diverse applications. It will serve as an ideal reference text for graduate students and academic researchers in diverse engineering fields including industrial, manufacturing, and materials science.

This volume presents the characterization methods involved with carbon nanotubes and carbon nanotube-based composites, with a more detailed look at computational mechanics approaches, namely the finite element method. Special emphasis is placed on studies that consider the extent to which imperfections in the structure of the nanomaterials affect their mechanical properties. These defects may include random distribution of fibers in the composite structure, as well as atom vacancies, perturbation and doping in the structure of individual carbon nanotubes.

The book demonstrates the key synergy between growth mechanisms and the development of new, advanced nanostructured materials.

Nanocomposites-Advanced Materials for Energy and Environmental Aspects provides a brief introduction to metal oxides. The book then discusses novel fabrication methodologies and eco-friendly methods for using a broad range of metal oxide-based nanocomposites in innovative ways. Key aspects include fundamental characteristics of environmentally sustainable fabrication of materials for solar power, power generation and the textiles industries. Commercialization and economic aspects that are currently of major significance are also discussed in detail. The book represents an important information resource for material scientists and engineers to create the next generation of products and devices for energy and environmental applications. Metal and metal oxide-based nanocomposites are at the heart of some of the most exciting developments in the field of energy and environmental research. They have exceptional properties and are utilized in electronic and environmental sensing devices, for energy storage, electrode materials, fuel cells, membranes, and more.

The ?eld of ferroelectricity is a very active one. Many hundreds of papers in this ?eld are published each year and a large number of local and international conferences are held. We felt that it wouldbeappropriate at this time to publish a set of papers in a single journal describing some of the most active areas in the ?eld. The Journal of Materials Science agreed to publish a special issue on ferroelectricity. Accordingly, we sent requests for papers to a number of research groups around the world. It was diff?culttoselect a small number of groups from among the many excellent ones in the ?eld and we apologize to those not included. We received 24 manuscripts from groups in North America, Asia and Europe, each one of which was reviewed by two referees. The papers include reviews and current research, both experimental and theoretical. It was especially satisfying that the authors included not only established researchers but also manyyounger people who are destined to continue in the ?eld in the future. The special issue entitled "e;Frontiers of Ferroelectricity"e;appeared as Volume 41, Issue 1 of the Journal of Materials Science in January 2006. Because webelieved that many researchers and students would ?nd great value in having the complete set of papers on their bookshelf, we suggested to the editors of Springer that Frontiers of Ferroelectricity shouldbe published in book form.

The last 30 years have seen a steady development in the range of ceramic materials with potential for high temperature engineering applications: in the 60s, self-bonded silicon carbide and reaction-bonded silicon nitride; in the 70s, improved aluminas, sintered silicon carbide and silicon nitrides (including sialons); in the 80s, various toughened Zr0 materials, ceramic matrix composites reinforced with silicon 2 carbide continuous fibres or whiskers. Design methodologies were evolved in the 70s, incorporating the principles of fracture mechanics and the statistical variation and time dependence of strength. These have been used successfully to predict the engineering behaviour of ceramics in the lower range of temperature. In spite of the above, and the underlying thermodynamic arguments for operations at higher temperatures, there has been a disappointing uptake of these materials in industry for high temperature usc. Most of the successful applications are for low to moderate temperatures such as seals and bearings, and metal cutting and shaping. The reasons have been very well documented and include: ¿ Poor predictability and reliability at high temperature. ¿ High costs relative to competing materials. ¿ Variable reproducibility of manufacturing processes. ¿ Lack of sufficiently sensitive non-destructive techniques. With this as background, a Europhysics Industrial Workshop sponsored by the European Physical Society (EPS) was organised by the Netherlands Energy Research Foundation (ECN) and the Institute for Advanced Materials of the Joint Research Centre (JRC) of the EC, at Petten, North Holland, in April 1990 to consider the status of thermomechanical applications of engineering ceramics.

Corrosion behaviour is one of the most poorly understood characteristics of ceramics. A balanced mixture of scientists from material science, metallurgy, physics, chemistry and mineralogy sum up the state of the art of measurement and modelling and reveal future research directions. The book reviews the theory of corrosion of ceramics, including the diffusion of gases and the predictions of thermodynamics; it discusses critically the kinetic models and representation tools for layer growths and material destruction. Corrosion of nitrides, carbides and oxides by simple and complex gases (O2, H2O, SO2, halides) and melts (ionic and metallic) reveal current measurement and modelling methods, advanced experimental techniques, such as laser diagnostics, TV holography, Raman spectroscopy and NDE surface methods. Frontier areas (e.g. the modelling of porous materials corrosion and protection) are revealed. For scientists and engineers in materials science, dealing with ceramics and their application. A valuable source for research students, solid state physicists and physical chemists.