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Author : 魏小雅
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (112 download)
Download or read book Structural Origins of Crystallization of Metallic Glasses in the Supercooled Liquid Region written by 魏小雅 and published by . This book was released on 2018 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. Suryanarayana
Publisher : CRC Press
ISBN 13 : 1498763685
Total Pages : 543 pages
Book Rating : 4.4/5 (987 download)
Download or read book Bulk Metallic Glasses written by C. Suryanarayana and published by CRC Press. This book was released on 2017-11-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Mark Lyell Johnson
Publisher :
ISBN 13 :
Total Pages : 291 pages
Book Rating : 4.:/5 (94 download)
Download or read book Structural Evolution, Chemical Order, and Crystallization of Metallic Liquids and Glasses written by Mark Lyell Johnson and published by . This book was released on 2015 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Takeshi Egami
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.3/5 (91 download)
Download or read book Supercooled Liquids, Glass Transition and Bulk Metallic Glasses: Volume 754 written by Takeshi Egami and published by . This book was released on 2003-07-16 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Werner Vogel
Publisher : Elsevier
ISBN 13 : 1483184331
Total Pages : 247 pages
Book Rating : 4.4/5 (831 download)
Download or read book Structure and Crystallization of Glasses written by Werner Vogel and published by Elsevier. This book was released on 2013-10-22 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Michael Miller
Publisher : Springer Science & Business Media
ISBN 13 : 0387489215
Total Pages : 243 pages
Book Rating : 4.3/5 (874 download)
Download or read book Bulk Metallic Glasses written by Michael Miller and published by Springer Science & Business Media. This book was released on 2007-09-26 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : D.V. Louzguine
Publisher : Materials Research Forum LLC
ISBN 13 : 1644901013
Total Pages : 358 pages
Book Rating : 4.6/5 (449 download)
Download or read book Metallic Glasses and Their Composites written by D.V. Louzguine and published by Materials Research Forum LLC. This book was released on 2021-01-05 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author :
Publisher :
ISBN 13 : 9789633714386
Total Pages : 36 pages
Book Rating : 4.7/5 (143 download)
Download or read book Structure and Crystallization of Fe-B Metallic Glasses written by and published by . This book was released on 1978 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Behrooz Movahedi
Publisher : BoD – Books on Demand
ISBN 13 : 9535125117
Total Pages : 180 pages
Book Rating : 4.5/5 (351 download)
Download or read book Metallic Glasses written by Behrooz Movahedi and published by BoD – Books on Demand. This book was released on 2016-08-17 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses and amorphous materials have attracted much more attention in the last two decades. A noncrystalline solid produced by continuous cooling from the liquid state is known as a glass. From the other point of view, a noncrystalline material, obtained by any other process, for example, vapor deposition or solid-state processing methods such as mechanical alloying, but not directly from the liquid state, is referred to as an amorphous material. At this moment, bulk metallic glasses (BMG) are appearing as a new class of metallic materials with unique physical and mechanical properties for structural and functional usage. Extreme values of strength, fracture toughness, magnetic properties, corrosion resistance, and other properties have been registered in BMG materials.
Author : Yukichi Umakoshi
Publisher : Trans Tech Publications Ltd
ISBN 13 : 3038130591
Total Pages : 420 pages
Book Rating : 4.0/5 (381 download)
Download or read book Advanced Structural and Functional Materials Design written by Yukichi Umakoshi and published by Trans Tech Publications Ltd. This book was released on 2006-04-15 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : A. Johansen
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (476 download)
Download or read book Crystallization of Al-based Metallic Glasses written by A. Johansen and published by . This book was released on 1991 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (684 download)
Download or read book Crystallization Pathway in the Bulk Metallic Glass Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni10Be{sub 22.5} written by and published by . This book was released on 1996 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new family of multicomponent metallic alloys exhibits an excellent glass forming ability at moderate cooling rates of about 10K/s and a wide supercooled liquid region. These glasses are eutectic or nearly eutectic, and thus far away from the compositions of competing crystalline phases. The nucleation of crystals from the homogeneous amorphous phase requires large thermally activated composition fluctuations for which the time scale is relatively long, even in the supercooled liquid. In the Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni10Be{sub 22.5} alloy therefore a different pathway to crystallization is observed. The initially homogeneous alloy separates into two amorphous phases. In the decomposed regions, crystallization probability increases and finally polymorphic crystallization occurs. The evolution of decomposition and succeeding primary crystallization in the bulk amorphous Zr{sub 41.2}Ti{sub 13.8}Cu{sub 12.5}Ni10Be{sub 22.5} alloy have been studied by small angle neutron scattering. Samples annealed isothermally in the supercooled liquid and in the solid state exhibit interference peaks indicating quasiperiodic inhomogeneities in the scattering length density. The related wavelengths increase with temperature according to the linear Cahn-Hilliard theory for spinodal decomposition. Also the time evolution of the interference peaks in the early stages is consistent with this theory. At later stages, X-ray diffraction and transmission electron microscopy investigations confirm the formation of nanocrystals in the decomposed regions.
Author : Dragica Minić
Publisher : BoD – Books on Demand
ISBN 13 : 1789854873
Total Pages : 100 pages
Book Rating : 4.7/5 (898 download)
Download or read book Metallic Glasses written by Dragica Minić and published by BoD – Books on Demand. This book was released on 2020-02-05 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The term "metallic glasses" is widely used to denote the amorphous alloys obtained by rapid quenching techniques. These materials are characterized by short range atom ordering without translational periodicity of the structure. Kinetic and thermodynamic metastability is one of the main characteristics generally related to metallic glasses, while their thermally induced microstructural transformations could result in deterioration or improvement of the functional properties. Due to their favorable magnetic, electrical, mechanical, and anti-corrosion properties, metallic glasses as new and attractive materials have found application in many areas of modern industries - electronics, construction industry, aerospace industry; as well as chemistry, biomedicine, and surgery.
Author : S Steeb
Publisher : Elsevier
ISBN 13 : 0444601112
Total Pages : 1163 pages
Book Rating : 4.4/5 (446 download)
Download or read book Rapidly Quenched Metals written by S Steeb and published by Elsevier. This book was released on 2012-12-02 with total page 1163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapidly Quenched Metals, Volume I covers the proceedings of the Fifth International Conference on Rapidly Quenched Metals, held in Wurzburg, Germany on September 3-7, 1984. The book focuses on amorphous and crystalline metals formed by rapid quenching from the melt. The selection first covers the scope and trends of developments in rapid solidification technology, rapid solidification, and undercooling of liquid metals by rapid quenching. Discussions focus on experimental method, powders, strip, particulate production, consolidation, and alloys and alloy systems. The text then examines the solidification of undercooled liquid alloys entrapped in solid; crystallization kinetics in undercooled droplets; and grain refinement in bulk undercooled alloys. The manuscript tackles the undercooling of niobium-germanium alloys in a 100 meter drop tube; influence of process parameters on the cooling rate of the meltspinning process; and the mechanism of ribbon formation in melt-spun copper and copper-zirconium. The formation and structure of thick sections of rapidly-solidified material by incremental deposition and production of ultrafine dispersions of rare earth oxides in Ti alloys using rapid solidification are also mentioned. The selection is a valuable reference for physicists, chemists, physical metallurgists, and engineers.
Author : James E Shelby
Publisher : Royal Society of Chemistry
ISBN 13 : 1782625119
Total Pages : 320 pages
Book Rating : 4.7/5 (826 download)
Download or read book Introduction to Glass Science and Technology written by James E Shelby and published by Royal Society of Chemistry. This book was released on 2015-11-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a concise and inexpensive introduction for an undergraduate course in glass science and technology. The level of the book has deliberately been maintained at the introductory level to avoid confusion of the student by inclusion of more advanced material, and is unique in that its text is limited to the amount suitable for a one term course for students in materials science, ceramics or inorganic chemistry. The contents cover the fundamental topics of importance in glass science and technology, including glass formation, crystallization, phase separation and structure of glasses. Additional chapters discuss the most important properties of glasses, including discussion of physical, optical, electrical, chemical and mechanical properties. A final chapter provides an introduction to a number of methods used to form technical glasses, including glass sheet, bottles, insulation fibre, optical fibres and other common commercial products. In addition, the book contains discussion of the effects of phase separation and crystallization on the properties of glasses, which is neglected in other texts. Although intended primarily as a textbook, Introduction to Glass Science and Technology will also be invaluable to the engineer or scientist who desires more knowledge regarding the formation, properties and production of glass.
Author : Yafang Han
Publisher : Springer
ISBN 13 : 9811301107
Total Pages : 942 pages
Book Rating : 4.8/5 (113 download)
Download or read book Advanced Functional Materials written by Yafang Han and published by Springer. This book was released on 2018-04-19 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume gathers selected papers presented at the Chinese Materials Conference 2017 (CMC2017), held in Yinchuan City, Ningxia, China, on July 06-12, 2017. This book covers a wide range of metamaterials and multifunctional composites, multiferroic materials, amorphous and high-entropy alloys, advanced glass materials and devices, advanced optoelectronic and microelectronic materials, biomaterials, deformation behavior and flow units in metastable materials, advanced fibers and nano-composites, polymer materials, and nanoporous metal materials. The Chinese Materials Conference (CMC) is the most important serial conference of the Chinese Materials Research Society (C-MRS) and has been held each year since the early 1990s. The 2017 installment included 37 Symposia covering four fields: Advances in energy and environmental materials; High performance structural materials; Fundamental research on materials; and Advanced functional materials. More than 5500 participants attended the congress, and the organizers received more than 700 technical papers. Based on the recommendations of symposium organizers and after peer reviewing, 490 papers have been included in the present proceedings, which showcase the latest original research results in the field of materials, achieved by more than 300 research groups at various universities and research institutes.
Author :
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (227 download)
Download or read book Glass Formability and Diffusion Mechanisms in Bulk Metallic Glasses and Supercooled Liquids written by and published by . This book was released on 2005 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three properties of bulk metallic glasses were investigated: (1) atomic motions; (2) characteristics of bonding and electronic states; (3) fracture. Atomic motion in glassy PdNiCuP was investigated by NMR over a wide temperature range from below the glass transition temperature Tg to above the liquidus temperature Tliq. This study reveals the temperature in the supercooled liquid region, below which motions of different elements begin to diverge. It sheds light on the nature of the crossover temperature Tc proposed by mode coupling theory. Also, hopping was shown to persist below Tg. The electronic states of various metallic glasses were studied by NMR including CuZrAl, Ce-based, and Y-based alloys. Results established some correlation between the glass forming ability and the characteristics of electronic states. This sheds light on the structure and formation of metallic glasses. Finally, we studied the fracture surfaces of various bulk metallic glasses including the brittle Mg-based bulk metallic glass. We established a clear correlation between the fracture toughness and plastic process zone size for various glasses. The results indicate that the fracture in brittle metallic glassy materials might also proceed through the local softening mechanism but at different length scales.
