الصفحة 1
الصفحة 1
Nanostructured Materials by High-Pressure Severe Plastic Deformation
Recently, it was reported that nanostructured materials processed under high pressure by HPT and ECAP have an extraordinary combination of both high strength and high ductility, which are two desirable, but rarely co-existing properties. These findings indicate that high-pressure is a critical factor that can be employed to process nanostructured materials with superior mechanical, and possibly also physical, properties. It is the objective of this workshop to review our current knowledge, identify issues for future research, and discuss future directions on the processing and properties of nanostructured materials via SPD techniques, with a special emphasis on high-pressure effects.
Modern trends in research on steel, aluminium and composite structures includes papers presented at the 14th International Conference on metal structures 2021 ; ICMS 2021, Poznań, Poland, 16-18 June 2021
Modern Trends in Research on Steel, Aluminium and Composite Structures includes papers presented at the 14th International Conference on Metal Structures 2021 (ICMS 2021, Pozna, Poland, 16-18 June 2021). The 14th ICMS summarised a few years' theoretical, numerical and experimental research on steel, aluminium and composite structures, and presented new concepts.
Hot cracking phenomena in welds II
This is the second in a series of compendiums devoted to weld hot cracking phenomena, where this subject has been further scrutinized, bringing to bare the most current thoughts on this complex and diverse subject. With 22 technical papers in total, this book is divided in such a way that specific classifications of hot cracks are examined in detail, including solidification, liquation, and ductility dip cracking. The first chapter looks at solidification cracking theory, applying the most modern approaches to modelling weld solidification. Also provided here is a comprehensive review of cracking models. This is followed by two chapters characterizing solidification cracking behaviour for specific alloy systems: ferrous plus nickel-based alloys and aluminium alloys, respectively. The fourth chapter considers liquation cracking in ferrous alloys, and the fifth examines ductility-dip cracking.
Gallium Nitride Processing for Electronics, Sensors and Spintronics
Semiconductor spintronics is expected to lead to a new generation of transistors, lasers and integrated magnetic sensors that can be used to create ultra-low power, high speed memory, logic and photonic devices. Useful spintronic devices will need materials with practical magnetic ordering temperatures and current research points to gallium and aluminium nitride magnetic superconductors as having great potential.Gallium Nitride Processing for Electronics, Sensors and Spintronics details current research into the properties of III-nitride semiconductors and their usefulness in novel devices such as spin-polarized light emitters, spin field effect transistors, integrated sensors and high temperature electronics.
Functional Properties of Nanostructured Materials
Nanostructured materials are becoming of major significance, and their investigations require a comprehensive approach. The fundamental properties of these materials are remarkably altered as the size of their constituent grains or phases decreases to the nanometer scale. These novel materials made of nanosized building blocks offer unique and entirely different electrical, optical, mechanical, and magnetic properties compared to conventional micro- or millimetre-size materials owing to their distinctive size, shape, topology, surface properties, etc.
Materials Handbook : A Concise Desktop Reference
The unique and practical Materials Handbook (second edition) provides quick and easy access to data on the physical and chemical properties of all classes of materials. The second edition has been much expanded to include whole new families of materials while many of the existing families are broadened and refined with new material and up-to-date information. Particular emphasis is placed on the properties of common industrial materials in each class.
Ambiguities in Decision-oriented Life Cycle Inventories: The Role of Mental Models and Values
Shows for the first time how mental models and values influence this attribution in the life cycle inventory step of LCA. One of the key findings is that the different management rules for a sustainable use of materials must be taken into account for the attribution of material and energy flows to a product. Otherwise, improvement options recommended by an LCA might turn out to even worsen the environmental situation if reassessed from a meta-perspective. As a consequence of this book, the claim of unambiguitiy (‘objectivity’) of the life cycle inventory must be abandoned. A group-model building process for LCA is developed that allows one to grasp the decision makers' mental models and values in the inventory analysis on a case- and situation-specific basis. Only by this, LCA results will become relevant in a decision-making process. Two case studies on the modelling of recycling and other end-of-life options of aluminium windows and beech wood railway sleepers in LCA complement the methodological part.
Advanced Methods in Material Forming
The book contains the most relevant papers presented in the International Conference on Materials Forming, ESAFORM 2005. The list below presents some of the most successful minisymposia of the conference: - New and advanced numerical strategies in forming process simulation; - Sheet metal forming technologies and modeling; - Anisotropy and formability of materials; - Polymer processing and modeling; - Composite forming technologies and modeling; - Superplastic forming. This volume gathers selected plenary and keynote papers presented in the conference, offering an up-to-date synthesis of the academic and industrial research in the fields of physical and numerical modeling of materials forming processes. The book is useful for the doctoral fellows, scientists and engineers involved in various domains of materials processing technology.
