Author: 魏小雅Publisher:
ISBN:
Category : Crystallization
Languages : en
Pages : 124
Book Description
Structural Origins of Crystallization of Metallic Glasses in the Supercooled Liquid Region
Author: 魏小雅Bulk Metallic Glasses
Author: C. SuryanarayanaPublisher: CRC Press
ISBN: 1498763685
Category : Technology & Engineering
Languages : en
Pages : 543
Book Description
Reflecting the fast pace of research in the field, the Second Edition of Bulk Metallic Glasses has been thoroughly updated and remains essential reading on the subject. It incorporates major advances in glass forming ability, corrosion behavior, and mechanical properties. Several of the newly proposed criteria to predict the glass-forming ability of alloys have been discussed. All other areas covered in this book have been updated, with special emphasis on topics where significant advances have occurred. These include processing of hierarchical surface structures and synthesis of nanophase composites using the chemical behavior of bulk metallic glasses and the development of novel bulk metallic glasses with high-strength and high-ductility and superelastic behavior. New topics such as high-entropy bulk metallic glasses, nanoporous alloys, novel nanocrystalline alloys, and soft magnetic glassy alloys with high saturation magnetization have also been discussed. Novel applications, such as metallic glassy screw bolts, surface coatings, hyperthermia glasses, ultra-thin mirrors and pressure sensors, mobile phone casing, and degradable biomedical materials, are described. Authored by the world’s foremost experts on bulk metallic glasses, this new edition endures as an indispensable reference and continues to be a one-stop resource on all aspects of bulk metallic glasses.
Structural Evolution, Chemical Order, and Crystallization of Metallic Liquids and Glasses
Author: Mark Lyell JohnsonPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Over the last 60 years, bulk metallic glasses have emerged as a new class of materials with highly desirable material properties. Their high strength, high elasticity, and corrosion resistance are attractive properties for viable commercial products. At its core, material properties are directly related to the underlying microstructure. By understanding the structural and chemical order in the liquid and undercooled liquid and their relationship to thermophysical properties such as viscosity, a greater understanding of bulk metallic glass formation can be achieved. In this dissertation, electrostatic levitation techniques are used to study the liquid in a containerless environment using a combination of X-ray and neutron scattering techniques. An X-ray diffraction study of liquid and glass Ni-Nb( -Ta) alloys reveals that an acceleration in the rate of structural ordering must take place near the glass transition, providing the framework for a structural description of fragility. X-ray diffraction and thermophysical property measurements of Zr-Ni binary alloys further characterize the structural connection to viscosity, and reveal signatures of chemical ordering in the liquid. By combining X-ray and neutron scattering measurements, the topological and chemical order in Zr80Pt20 and Zr77Rh23 liquids is characterized. Very different chemical order is found between these alloys, despite their remarkable similarity in topological order. Due to this structural similarity, a new metastable phase is predicted and later identified emerging from a deeply supercooled Zr77Rh23 liquid. Zr77Rh23 is found to have many metastable crystallization pathways, which are further characterized here. Through simultaneous wide-angle and small-angle X-ray scattering, the devitrification behavior of a bulk metallic glass (Vitreloy 105) is investigated and is found to decompose into two distinct compositions during crystallization. By understanding crystallization pathways in good glass-forming alloys, a better understanding of glass formation and its connections to structural and thermophysical properties can be achieved.
Supercooled Liquids, Glass Transition and Bulk Metallic Glasses: Volume 754
Author: Takeshi EgamiPublisher:
ISBN:
Category : Science
Languages : en
Pages : 512
Book Description
There has been a renaissance in glass science brought about by the development of concepts such as fragility index and the energy landscape with megabasins. Research on bulk metallic glasses has been explosive since their advent when MRS offered its first book on the topic. In 2000, a second book broadened the scope to include supercooled liquid, bulk glassy and nanocrystalline states. This book enhances the scope to include glass transition in diverse materials such as water, silicate and polymeric melts. Bringing these threads together in an interdisciplinary manner was fruitful and offers proof that while there is much common ground, gaps between various approaches to the glassy state remain to be bridged. Subjects include: the supercooled liquid; glass formability; structural relaxation and dynamics; structure determination and modeling; processing and applications of bulk metallic glasses; mechanical properties; mechanical properties - composites; crystallization; electronic and magnetic structure and properties; and nanoparticles and nonmetallic glasses.
Structure and Crystallization of Glasses
Author: Werner VogelPublisher: Elsevier
ISBN: 1483184331
Category : Technology & Engineering
Languages : en
Pages : 247
Book Description
Structure and Crystallization of Glasses details glass structural analysis from an experimental perspective. The book is comprised of eight chapters that cover various structural concepts. The text first introduces the basic elements of glass structures, and then proceeds to discussing the development of classical structure theories. The next chapter presents research that deals with structure of prototype and original glasses. Next, the book details the position of the structural conceptions resulting from the studies. Chapter 5 talks about the crystallization behavior of glasses according to the classical studies of G. Tammann and their development. Chapter 6 deals with the effects of the composition of glass on the resulting form of a crystal phase in the course of growth. The seventh chapter discusses the microphases in glass and their relations to crystallization, and the last chapter details the directed crystallization in glass. The text will be of great use to individuals involved in the research, development, and application of glass technology, such as materials engineers and inorganic chemists.
Bulk Metallic Glasses
Author: Michael MillerPublisher: Springer Science & Business Media
ISBN: 0387489215
Category : Technology & Engineering
Languages : en
Pages : 243
Book Description
Bulk metallic glasses are a new emerging field of materials with many desirable and unique properties. These amorphous materials have many diverse applications from structural applications to biomedical implants. This book provides a complete overview of bulk metallic glasses. It covers the principles of alloy design, glass formation, processing, atomistic modeling, computer simulations, mechanical properties and microstructures.
Structure and Crystallization of Fe-B Metallic Glasses
Author: Crystallization of Al-based Metallic Glasses
Author: A. JohansenMetallic Glasses and Their Composites
Author: D.V. LouzguinePublisher: Materials Research Forum LLC
ISBN: 1644901013
Category : Technology & Engineering
Languages : en
Pages : 358
Book Description
Metallic glasses and their crystal/glass composites find ever more applications in such fields as mini transformers, microelectromechanical devices, pressure sensors, precision surgical instruments, biological implants and sportive goods (springs, diaphragms, membranes, knife blades, electromagnetic wave shields, optical mirrors, power inductors, Coriolis flow meters, etc.). The book reviews recent research and suggests future developments, e.g. in the area of dual-phase composite/hybrid materials. Keywords: Metallic Glasses, Crystal/Glass Composites, Dual-phase Composite/Hybrid Materials, Supercooled Liquid, Devitrification, Magnetic Materials, Microelectromechanical Devices, Pressure Sensors, Orthopedic Screws, Precision Instruments, Biological Implants, Electromagnetic Wave Shields, Optical Mirrors, Power Inductors, Coriolis Flow Meters.
Advanced Structural and Functional Materials Design
Author: Yukichi UmakoshiPublisher: Trans Tech Publications Ltd
ISBN: 3038130591
Category : Technology & Engineering
Languages : en
Pages : 420
Book Description
Volume is indexed by Thomson Reuters CPCI-S (WoS). The Industrial Revolution showed that the development and improvement of new materials and functions could bring about social change, and benefit human society. However, one can be forgiven for feeling that more recent materials research, particularly in the domain of metals, has focused only upon individual elemental characteristics and narrow specialty fields, and that the original vision of materials research has thus been lost.