Human development has been a continuing attempt to use new materials in ever more sophisticated ways to enhance the quality of human life. Throughout history, we have made materials with a main component based on the principal property required, with small alloying additions to provide secondary properties. But recently, there has been a revolution as we have discovered how to make much more complex mixtures, providing completely new materials, requiring entirely new scientific theories, and massively extending our ability to make useful products. These new materials are called multicomponent or high-entropy materials. This is the first textbook on the fundamentals of these new multicomponent high-entropy materials. It includes contextual chapters on the history and future potential for developing humankind as driven by the discovery of new materials, and core chapters on methods for discovering and manufacturing multicomponent high-entropy materials, their underlying thermodynamic and atomic and electronic structures, their physical, mechanical and chemical properties, and their potential applications. This book concentrates on the main new concepts and theories that have been developed. It is written by the scientist who first discovered multicomponent high-entropy materials, and covers how to make them as well as their structures, properties and potential applications, providing an overview and a summary of the state of play for researchers as well as for students and newcomers entering the field.

This book provides a systematic and comprehensive description of high-entropy alloys (HEAs). The authors summarize key properties of HEAs from the perspective of both fundamental understanding and applications, which are supported by in-depth analyses. The book also contains computational modeling in tackling HEAs, which help elucidate the formation mechanisms and properties of HEAs from various length and time scales.

This book draws on the latest research to discuss the history and development of high-entropy alloys and ceramics in bulk, film, and fiber form. High-entropy materials have recently been developed using the entropy of mixing and entropy of configuration of materials, and have proven to exhibit unique properties superior to those of conventional materials. The field of high-entropy alloys was born in 2004, and has since been developed for both scientific and engineering applications. Although there is extensive literature, this field is rapidly transforming. This book highlights the cutting edge of high-entropy materials, including their fundamentals and applications. Above all, it reflects two major milestones in their development: the equi-atomic ratio single-phase high-entropy alloys; and the non-equi-atomic ratio dual-phase high-entropy alloys.

High-Entropy Alloys, Second Edition provides a complete review of the current state of the field of high entropy alloys (HEA). Building upon the first edition, this fully updated release includes new theoretical understandings of these materials, highlighting recent developments on modeling and new classes of HEAs, such as Eutectic HEAs and Dual phase HEAs. Due to their unique properties, high entropy alloys have attracted considerable attention from both academics and technologists. This book presents the fundamental knowledge, the spectrum of various alloy systems and their characteristics, key focus areas, and the future scope of the field in terms of research and technological applications. - Provides an up-to-date, comprehensive understanding on the current status of HEAs in terms of theoretical understanding and modeling efforts - Gives a complete idea on alloy design criteria of various classes of HEAs developed so far - Discusses the microstructure property correlations in HEAs in terms of structural and functional properties - Presents a comparison of HEAs with other multicomponent systems, like intermetallics and bulk metallic glasses

This book discusses fundamental studies involving the history, modelling, simulation, experimental work, and applications on high-entropy materials. Topics include data-driven and machine-learning approaches, additive-manufacturing techniques, computational and analytical methods, such as density functional theory and multifractal analysis, mechanical behavior, high-throughput methods, and irradiation effects. The types of high-entropy materials consist of alloys, oxides, and ceramics. The book then concludes with a discussion on potential future applications of these novel materials.

Significant update of knowledge in the field of high-entropy materials, including promising new high-entropy ceramics High-Entropy Materials provides information on state-of-the-art development in the field of high-entropy materials, including high-entropy alloys, high-entropy ceramics, and a variety of their applications, covering many core topics to provide a thorough and detailed overview of the subject. The book also thoroughly explores the applications of high-entropy materials in various areas, such as EBC/TBC coating, superhard and wear resistance coating, nuclear energy, batteries, catalysts, thermoelectric, supercapacitors, biocompatible structure, and microelectronics. In High-Entropy Materials, readers can expect to find specific information on: Basics of high entropy materials, structural features and thermodynamics of high-entropy materials, and theoretical design in high-entropy materials Synthesis and processing of high-entropy materials and characterization of high-entropy materials, as well as their mechanical and functional properties Challenges and future directions of high-entropy materials, a relatively new type of material that has been in development only since the early 2000s How high-entropy materials are a horizon-broadening class of materials that can significantly further humanity’s pursuit of progress Focusing on the fundamentals and developments of high-entropy alloys and ceramics as well as on their microstructure and properties for a wide range of applications, High-Entropy Materials is an essential resource on the subject for materials scientists, metallurgists, mechanical engineers, and professionals in the aerospace industries.

High Entropy Materials covers the fundamental concepts of these materials and their emerging applications. To fulfil growing energy demand, scientists are looking for novel materials which can be used for the fabrication of high-performance energy devices. Many materials such as graphene, carbon nanotubes, and metal oxides are used in energy production and storage. A new class of metal oxides, multicomponent metal oxides, known as high entropy materials, have attracted considerable attention not only for their energy applications but also other emerging applications such as use in sensors, catalysts, and CO2 absorption. Key Features: Reviews state-of-the-art developments Provides new directions to scientists, researchers, and students to better understand the principles, technologies, and applications of high entropy materials Discusses ongoing challenges and visions for the future