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This volume examines important experimental techniques needed to characterise inorganic materials in order to elucidate their properties for practical application. Addressing methods that examine the structures and properties of materials over length scales ranging from local atomic order to long-range order on the meso- and macro-scopic scales, Multi Length-Scale Characterisation contains five detailed chapters: Measurement of Bulk Magnetic Properties Thermal Methods Atomic Force Microscopy Gas Sorption in the Analysis of Nanoporous Solids Dynamic Light Scattering Ideal as a complementary reference work to other volumes in the series (Local Structural Characterisation and Structure from Diffraction Methods) or as an examination of the specific characterisation techniques in their own right, Multi Length-Scale Characterisation is a valuable addition to the Inorganic Materials Series.
The book covers various methods of characterization of advanced materials commonly used in engineering including understanding of the working principle and applicability of devices. It explores the techniques implemented for advanced materials like superalloys, thin films, powders, nanocomposites, polymers, shape memory alloys, high entropy alloys, and so on. Major instruments covered include X-ray diffraction, near-field scanning optical microscopy Raman, X-ray photospectroscopy, ultraviolet-visible-near-infrared spectrosphotometer, Fourier-transform infrared spectroscopy, differential scanning calorimeter, profilometer, and thermogravimetric analysis. Features: Covers material characterization techniques and the development of advanced characterization technology Includes multiple length scale characterization approaches for a large variety of materials, from nano- to micron-scale, as well as their constraints Discusses advanced material characterization technology in the microstructural and property characterization fields Reviews both practical and theoretical explanations of approaches for characterizing microstructure and properties Offers fundamentals, basic instrumentation details, experimental approaches, analyses, and applications with case studies This book is aimed at graduate students and researchers in materials science and engineering.
This new 3-volume set from the Inorganic Materials Series is made up of the three stand-alone volumes: Local Structural Characterisation; Multi Length-Scale Characterisation; and Structure from Diffraction Methods. Each volume contains five carefully chosen chapters which illustrate state-of-the-art techniques for materials characterisation. They emphasise the interplay of chemical synthesis and physical characterisation, and address spectroscopic, diffraction and surface techniques that examine the structure of materials on all length scales, from local atomic structure to long-range crystallographic order. Local Structural Characterisation covers: Solid State NMR Spectroscopy; X-Ray Absorption and Emission Spectroscopy; Neutrons and Neutron Spectroscopy; EPR Spectroscopy of Inorganic Materials and Analysis of Functional Materials by X-Ray Photoelectron Spectroscopy. Multi Length-Scale Characterisation contains: Measurement of Bulk Magnetic Properties; Thermal Methods; Atomic Force Microscopy; Gas Sorption in the Analysis of Nanoporous Solids and Dynamic Light Scattering. Structure from Diffraction Methods includes: Powder Diffraction; X-Ray and Neutron Single-Crystal Diffraction; PDF Analysis of Nanoparticles; Electron Crystallography and Small-Angle Scattering.
Inorganic materials show a diverse range of important properties that are desirable for many contemporary, real-world applications. Good examples include recyclable battery cathode materials for energy storage and transport, porous solids for capture and storage of gases and molecular complexes for use in electronic devices. An understanding of the function of these materials is necessary in order to optimise their behaviour for real applications, hence the importance of 'structure–property relationships'. The chapters presented in this volume deal with recent advances in the characterisation of crystalline materials. They include some familiar diffraction methods, thoroughly updated with modern advances. Also included are techniques that can now probe details of the three-dimensional arrangements of atoms in nanocrystalline solids, allowing aspects of disorder to be studied. Small-angle scattering, a technique that is often overlooked, can probe both ordered and disordered structures of materials at longer length scales than those probed by powder diffraction methods. Addressing both physical principals and recent advances in their applications, Structure from Diffraction Methods covers: Powder Diffraction X-Ray and Neutron Single-Crystal Diffraction PDF Analysis of Nanoparticles Electron Crystallography Small-Angle Scattering Ideal as a complementary reference work to other volumes in the series (Local Structural Characterisation and Multi Length-Scale Characterisation), or as an examination of the specific characterisation techniques in their own right, Structure from Diffraction Methods is a valuable addition to the Inorganic Materials Series.
Computer-generated 2-D microstructures of varying second-phase area fraction (5% to 30%), aspect ratio (1 to 16), and degree of alignment (where the reinforcement major-axis orientation is random, perfectly aligned, or semi-aligned) are analyzed via the isotropic and directional forms of the computationally efficient Multi-Scale Analysis of Area Fractions (MSAAF) technique. The impact of these microstructure parameters on the representative volume element (RVE) necessary to characterize a microstructure is ascertained with variations in isotropic and directional homogenous length scales, derivative quantities of the MSAAF technique. Analysis of these results produces empirical expressions for the directional homogenous length scale as a function of area fraction and aspect ratio for the limiting cases of random and "perfect" second phase alignment. Generally, particle alignment is observed to increase the aspect ratio of a microstructure's RVE -- a trend amplified by higher reinforcement aspect ratios and lower area fractions.
Inorganic materials are at the heart of many contemporary real-world applications, in electronic devices, drug delivery, bio-inspired materials and energy storage and transport. In order to underpin novel synthesis strategies both to facilitate these applications and to encourage new ones, a thorough review of current and emerging techniques for materials characterisation is needed. Examining important techniques that allow investigation of the structures of inorganic materials on the local atomic scale, Local Structural Characterisation discusses: Solid-State NMR Spectroscopy X-Ray Absorption and Emission Spectroscopy Neutrons and Neutron Spectroscopy EPR Spectroscopy of Inorganic Materials Analysis of Functional Materials by X-Ray Photoelectron Spectroscopy This addition to the Inorganic Materials Series provides a detailed and thorough review of these spectroscopic techniques and emphasises the interplay between chemical synthesis and physical characterisation.
The layer-by-layer deposition process of additive manufacturing (AM) offers the capability to design material microstructures on multiple length scales. For NiTi shape memory alloys, designing material microstructures using AM would allow for unparalleled tailoring of the multiscale martensitic transformation and shape memory response. However, the laser-based directed energy deposition (LDED) AM technique produces localized microstructures which are distinct from those found in conventionally processed alloys. This work characterizes the grain and precipitate microstructures on multiple length scales for LDED fabricated NiTi alloys and assess the capability for tailoring the martensitic transformation morphology shape memory response through post-deposition heat treatments. Build coupons were fabricated by LDED AM using elementally blended Ni and Ti powder feedstock. The use of elemental powders allowed for a Ti-rich and a Ni-rich powder feedstock composition to be blended; thus, both shape memory effect (Ti-rich) and superelastic (Ni-rich) behaviors were investigated. Specimens were extracted from the fabricated build coupons to investigate the localized microstructure and shape memory behaviors. A full-field deformation analysis technique was employed to correlate the AM microstructure to the deformation mechanisms.The results of this work show that the NiTi LDED AM builds are inherently spatially varying on multiple microstructure length scales. The grain structure resulting from the AM process was similar for both feedstock compositions: fine grains within the interfacial regions formed by overlapping passes/layers and larger columnar grains within bulk regions (i.e. away from these interfaces). As a result of the spatially varying microstructure, as built LDED NiTi alloys exhibit a hardening like response and localized strain concentrations. Post-deposition heat treatment of the Ni-rich alloys reduced the spatial variation in the Ni4Ti3 precipitate microstructure and increased the localized superelastic strains compared to the as built condition, with the solutionizing and precipitation aging treatment resulting in the most spatially uniform Ni4Ti3 precipitate morphology. For the LDED alloys, shape memory effect recovery strains of 4.0 % (for Ti-rich alloys) and superelastic recovery strains of -6.0 % (for solutionized and aged Ni-rich alloys) were achieved.