hume rothery rules for structurally complex alloy phases

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Hume Rothery Rules For Structurally Complex Alloy Phases

Author : Uichiro Mizutani
ISBN : 1420090593
Genre : Science
File Size : 43. 89 MB
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With a history that reaches back some 90 years, the Hume-Rothery rules were developed to provide guiding principles in the search for new alloys. Ultimately, the rules bridged metallurgy, crystallography, and physics in a way that led to the emergence of a physics of the solid state in 1930s, although the physical implications of the rules were never fully resolved. Even today, despite a revived interest brought about by the 1984 discovery of quasicrystals, much about the rules remains an enigma. Now almost a century after the rules were put forward, Hume-Rothery Rules for Structurally Complex Alloy Phases provides researchers with an insightful and applicable interpretation of the Hume-Rothery electron concentration rule. Invoking first-principle band calculations, the book emphasizes the stability of structurally complex metallic alloys (CMAs).Written by Uichiro Mizutani, long considered the most knowledgeable expert on both the history and science of Hume-Rothery, this seminal work — Offers a unified interpretation of phase stabilization mechanism of CMAs in different classes Explains how to determine the effective valency of transition metal elements Details establishment of d-states-mediated-FsBz interactions in strongly orbital-hybridizing systems Covers the contrast between e/a and VEC, two notions of electron concentration parameters and includes a way to differentiate between them in designing new alloys Explores strengths and shortcomings for the theory on alloy phase stability Discusses the latest take on electron concentration for gamma-brass This work summarizes the ongoing history of Hume-Rothery and reflects the theoretical studies that Professor Mizutani embarked upon to gain deeper understanding of the basic physics behind stabilizing effects related to electron concentration. It describes how metallic and covalent bonding styles can be harmonized to stabilize a given phase in relation to electron concentration and electrochemical effect as defined by the rules. Beyond theory, the approaches presented in these pages will prove of great value to researchers developing new functional metals and alloys.

Surface Properties And Engineering Of Complex Intermetallics

Author : Esther Belin-Ferr‚
ISBN : 9789814304764
Genre : Science
File Size : 53. 46 MB
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Focuses on the development of fundamental knowledge with the aim of understanding materials phenomena, transformation and processing of knowledge-based multifunctional materials, surface engineering, and support for materials development and knowledge-based higher performance materials for macro-scale applications.

High Entropy Alloys

Author : Michael C. Gao
ISBN : 9783319270135
Genre : Technology & Engineering
File Size : 72. 96 MB
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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.

The Science Of Complex Alloy Phases

Author : TMS Committee on Alloy Phases
ISBN : UOM:39015060895177
Genre : Science
File Size : 64. 98 MB
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This book is published in honor of the 2005 Hume-Rothery Award Recipient, Uichiro Mizutani. It emphasizes both theoretical and experimental aspects of electronic, structural, and thermodynamic properties of complex alloy phases. Leading experts provide an assessment of our current understanding of the structural properties of complex materials, including quasicrystalline and amorphous alloys. Special emphasis is placed on our understanding of why nature is able to stabilize complex atomic arrangements and on recent results related to structurally complex alloy phases. These topics, in the spirit of the work carried out by U. Mizutani, constitute the main theme of the book.

Intermetallics

Author : Rainer Pöttgen
ISBN : 9783486856187
Genre : Science
File Size : 71. 64 MB
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More than 80 elements of the Periodic Table are metals showing a broad range of structures, bonding peculiarities and physical properties. Thus, alloys and intermetallic compounds play an important role for modern functional and construction materials. Due to the enormous variety of intermetallics the authors introduce to the broad field on the level of final Master studies and focus on the basic materials.

Zeitschrift F R Kristallographie

Author :
ISBN : UCSD:31822036930501
Genre : Crystallography
File Size : 22. 84 MB
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Electronic Structure Of Complex Hume Rothery Phases And Guasicrystals In Transition Metal Aluminides

Author : Guy Trambly de Laissardiere
ISBN : UOM:39015062440071
Genre : Science
File Size : 73. 49 MB
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Electron Theory In Alloy Design

Author : Alan Howard Cottrell (Sir.)
ISBN : UOM:39015025172712
Genre : Technology & Engineering
File Size : 43. 34 MB
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Materials Science And Engineering

Author : G. S. Upadhyaya
ISBN : 1905740514
Genre : Technology & Engineering
File Size : 58. 13 MB
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This book emphasises the relationships between diverse types of material, and their importance and usage in engineering. It describes the structure property processing performance relationships in various classes - metals, ceramics, polymers and composites. Each chapter discusses all these materials, so that students are reminded of bonding and structure and their influence on properties, processing and material performance. Within this core content the authors have inserted numerous illustrations and worked examples, case studies, and questions at the end of each chapter, in order to encourage the reader to better understand and appreciate the subject. This title will serve as an excellent textbook for engineering students of diverse disciplines, as well as an introduction for design engineers in manufacturing industries engaged in the selection of engineering materials.

Intermetallic Compounds Crystal Structures Of

Author : J. H. Westbrook
ISBN : 0471608807
Genre : Technology & Engineering
File Size : 90. 65 MB
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An intermetallic compound is one consisting of two or more metallic elements present in definite proportions in alloy. They are used in a wide range of industries such as semiconductors and the aerospace industry. Thousands of tons of the nickel aluminum alloy are used worldwide every year.

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