Download or read book Thermal Stability of Electrodeposited Nanocrystalline Ni and Co based Materials written by Melina Da Silva and published by . This book was released on 2007 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Stability of Nanocrystalline Nickel Electrodeposited from an Additive free Electrolyte written by Charles Soong and published by . This book was released on 2009 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thermal stability of nanocrystalline materials has been studied extensively in recent years for a wide spectrum of materials. Specifically, electrodeposited nanocrystalline nickels has shown dramatic sensitivity in its growth behaviour to sulphur impurity concentrations in the range of hundred parts per million. In the current study, a novel approach to eleetrodeposition utilizing strong mechanical agitation and unusually high pulse deposition current densities was developed to produce nanocrystalline nickel with low sulphur content from an additive-free electrolyte. Inductively coupled plasma analysis showed that the sulphur impurity content was less than 10 ppm. Isothermal heat treatments of this material at three annealing temperatures of 285°C, 350°C and 450°C showed no strong evidence of abnormal grain growth, a growth form observed in many past studies on sulphur-containing nanocrystalline nickel. The microstructure evolution was classified via the introduction of log-time distribution histograms, and cumulative volume fraction diagrams. The activation energy and kinetics for grain growth was determined.
Download or read book Thermal Stability Comparison of Nanocrystalline Ni and Co based Materials written by Guillaume Burstert and published by . This book was released on 2004 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fabrication Thermal Stability and Mechanical Characterization of Electrodeposited Nanocrystalline Face Center Cubic Ni fe Alloys written by Hongqi Li and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: In conclusion, this dissertation elucidates that the addition of alloying element, grain size and the grain boundary state are three key parameters to be considered when studying the nanostructured materials.
Download or read book Microstructural Evolution During Annealing in Nanostructured Electrodeposits microform written by Glenn David Hibbard and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2002 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroplating of Nanostructures written by Mahmood Aliofkhazraei and published by BoD – Books on Demand. This book was released on 2015-12-02 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electroplating was widely used to electrodeposit the nanostructures because of its relatively low deposition temperature, low cost and controlling the thickness of the coatings. With advances in electronics and microprocessor, the amount and form of the electrodeposition current applied can be controlled. The pulse electrodeposition has the interesting advantages such as higher current density application, higher efficiency and more variable parameters compared to direct current density. This book collects new developments about electroplating and its use in nanotechnology.
Download or read book The Effect of Temperature on the Electrical Resistivity of Electrodeposited Nanocrystalline Materials written by Jonathan Lawrence McCrea and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrical resistivity as a function of temperature (4K to 773K) of several electrodeposited nanocrystalline materials (Ni, Ni-Fe, Co) has been examined. The contribution of the grain boundaries to the electrical resistivity was quantified in terms of a specific grain boundary resistivity, which was found to be similar to previous reported values of specific grain boundary resistivity of copper and aluminum obtained from studies involving polycrystalline samples. In the high temperature range, the resistivity of the nanocrystalline samples was monitored under both isokinetic and isothermal heating. A Kissinger type analysis was applied using the temperature corresponding to the maximum rate of change of the resistivity under isokinetic heating at various heat rates. The activation energies calculated by this method were found to be similar to those determined on similar materials using conventional differential scanning calorimetry. The observed time dependence of the resistivity measured isothermally at elevated temperatures was correlated to microstructural changes in the material using the specific grain boundary resistivity. A model involving abnormal grain growth is introduced to explain the resulting shape of the grain growth vs. time curves. This study has shown that electrical resistivity is an excellent characterization tool for nanocrystalline materials giving useful information regarding grain size and degree of thermal stability, as well as some insight into the grain growth kinetics at the various temperatures.
Download or read book Structure and Properties of Electrodeposited Nanocrystalline Ni and Ni Fe Alloy Continuous Foils written by Jason Giallonardo and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grain Boundary Migration in Metals written by Gunter Gottstein and published by CRC Press. This book was released on 1999-06-17 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behavior of adjacent materials at the boundary where they meet is an essential aspect of creating new engineering materials. Grain Boundary Migration in Metals is an authoritative account of the physics of grain boundary motion, written by two highly respected researchers. They provide a comprehensive overview of current knowledge regarding the migration process and how it affects microstructure evolution, focusing their treatment exclusively on the properties and behavior of grain boundaries with well defined geometry and crystallography. With their emphasis on applications-such as the characterization of microstructure and texture, recrystallization, and grain growth-the authors effectively fill the gap between the physics of grain boundary motion and its engineering practicality. The need for better microstructural design motivates permanent thrust for research in the field, and continued rapid progress appears inevitable. Grain Boundary Migration in Metals provides a solid foundation in the phenomena and serves as a valuable reference for professionals in materials science, solid state physics, and any industry engaged in metals production and the heat treatment of metals and alloys.
Download or read book Nanostructure formation and thermal stability of Cu and Cu based alloys written by Mohsen Samadi Khoshkhoo and published by Cuvillier Verlag. This book was released on 2015-01-12 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanostructured materials are materials with grain size smaller than 100 nm. Due to the very small grain size, a large fraction of atoms belong to the grain-boundaries. As a result, their properties are significantly different compared to their coarse-grained counterparts. Generally, a considerable improvement in the properties is observed when the size is reduced to nanometer dimensions. These include high strength and hardness, improved ductility and toughness, as well as enhanced diffusivity, which make this category of materials of particular interest for a wide range of applications. The properties of nanocrystalline materials are strongly affected by their structure and defects density, which in turn are determined by the method of production. As a result, the knowledge of the mechanism of nanostructure formation is a prerequisite for the structure/property optimization.
Download or read book Alloy Materials and Their Allied Applications written by Inamuddin and published by John Wiley & Sons. This book was released on 2020-05-12 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alloy Materials and Their Allied Applications provides an in-depth overview of alloy materials and applications. The 11 chapters focus on the fabrication methods and design of corrosion-resistant, magnetic, biodegradable, and shape memory alloys. The industrial applications in the allied areas, such as biomedical, dental implants, abrasive finishing, surface treatments, photocatalysis, water treatment, and batteries, are discussed in detail. This book will help readers solve fundamental and applied problems faced in the field of allied alloys applications.
Download or read book Environmental Degradation of Advanced and Traditional Engineering Materials written by Lloyd H. Hihara and published by CRC Press. This book was released on 2013-10-23 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the main, ongoing challenges for any engineering enterprise is that systems are built of materials subject to environmental degradation. Whether working with an airframe, integrated circuit, bridge, prosthetic device, or implantable drug-delivery system, understanding the chemical stability of materials remains a key element in determining their useful life. Environmental Degradation of Advanced and Traditional Engineering Materials is a monumental work for the field, providing comprehensive coverage of the environmental impacts on the full breadth of materials used for engineering infrastructure, buildings, machines, and components. The book discusses fundamental degradation processes and presents examples of degradation under various environmental conditions. Each chapter presents the basic properties of the class of material, followed by detailed characteristics of degradation, guidelines on how to protect against corrosion, and a description of testing procedures. A complete, self-contained industrial reference guide, this valuable resource is designed for students and professionals interested in the development of deterioration-resistant technological systems constructed with metallurgical, polymeric, ceramic, and natural materials.
Download or read book Physical Foundations of Materials Science written by Günter Gottstein and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this vivid and comprehensible introduction to materials science, the author expands the modern concepts of metal physics to formulate basic theory applicable to other engineering materials, such as ceramics and polymers. Written for engineering students and working engineers with little previous knowledge of solid-state physics, this textbook enables the reader to study more specialized and fundamental literature of materials science. Dozens of illustrative photographs, many of them transmission electron microscopy images, plus line drawings, aid developing a firm appreciation of this complex topic. Hard-to-grasp terms such as "textures" are lucidly explained - not only the phenomenon itself, but also its consequences for the material properties. This excellent book makes materials science more transparent.
Download or read book Thermal Stability Phase Decomposition and Micro fatigue Properties of Pulsed Electrodeposited Nanocrystalline Co Cu written by Killang Pratama and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigating the Thermal and Phase Stability of Nanocrystalline Ni W Produced by Electrodeposition Sputtering and Mechanical Alloying written by Christopher Jonathan Marvel and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The findings of this research will hopefully guide future efforts to design more thermally stable nanocrystalline alloys. The link between phase stability and grain growth behavior of Ni-W was thoroughly discussed, as well as the dependence of bulk fabrication processing on the contamination found in the alloys. Ultimately, this research has greatly expanded the general understanding of nanocrystalline Ni-W microstructures, and it is likely that similar phenomena occur in other nanocrystalline systems.
Download or read book X Ray Line Profile Analysis in Materials Science written by Gubicza, Jen? and published by IGI Global. This book was released on 2014-03-31 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-ray line profile analysis is an effective and non-destructive method for the characterization of the microstructure in crystalline materials. Supporting research in the area of x-ray line profile analysis is necessary in promoting further developments in this field. X-Ray Line Profile Analysis in Materials Science aims to synthesize the existing knowledge of the theory, methodology, and applications of x-ray line profile analysis in real-world settings. This publication presents both the theoretical background and practical implementation of x-ray line profile analysis and serves as a reference source for engineers in various disciplines as well as scholars and upper-level students.
Download or read book Anticorrosive Nanomaterials written by Chandrabhan Verma and published by Royal Society of Chemistry. This book was released on 2022-05-09 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion causes permanent damage to metal surfaces and is a major global challenge, spanning numerous fields including industrial sectors, construction materials, and surface treatments for metallic cultural heritage preservation. Nanomaterials and nanocomposites can be used as effective alternative corrosion inhibitors in the place of traditional environmentally toxic substances. This book provides readers with an overview of the properties and applications of nanomaterials and nanocomposites as corrosion inhibitors. Chapters first cover the basics of nanomaterials and the features that make them useful candidates, before highlighting recent advances from across the field for industry-oriented challenges. With a focus on cutting-edge research, this book is a valuable resource for chemists, chemical engineers, material scientists and environmental chemists in both academia and industry who want to learn more about corrosion inhibitors and mechanisms.
