Phase composition

This textbook represents an attempt to present a relatively brief overview of Materials Science, the anticipated readership being students of structural and mechanical engineering. It is in two sections – the first characterising engineering materials, the second considering structure–property relationships. Emphasis is thus placed on the relationship between structure and properties of materials, starting with the concept of ‘structure’ at three levels - crystal structure, microstructure, and molecular structure.

269p zizaybay1103 29-05-2024 3 2   Download

This book is aimed at architects and developers in the design, implementation, and integration phases of advanced information systems and e-business solutions, developing business processes and dealing with the issues of composition, orchestration, transactions, coordination, and security.

372p vimeyers 29-05-2024 2 2   Download

his paper investigates the nonlinear vibration of imperfect smart sandwich plate which consists of an auxetic graphene reinforced metal matrix composite (GRRMC) core layer integrated with two magneto-electro-elastic face sheets. The Poisson’s ratio of the GRMMC core is negative while the material properties of magneto-electro-elastic face sheets depend on the volume fraction of piezoelectric and piezomagnetic phases.

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Large deflections of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) sandwich beams are studied in this paper by a nonlinear finite element procedure. The core of the beams is homogeneous while the two faces are of CNTRC material. The effective properties of the two CNTRC face sheets are determined by an extended rule of mixture. CNTs are reinforced into matrix phase through uniform distribution (UD) or four different types of functionally graded (FG) distribution, named as FG-X, FG-A, FG-V, FG-O.

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In this research work, in order to obtain the deposition behavior of Ni-W-P coating on the Zr-4 surface, electroless Ni-W-P coating at different times was successfully deposited on Zr-4 alloy by an electroless plating technique. It is expected to provide a reliable basic experimental basis for the research of electroless plating of modified zirconium alloy.

11p dianmotminh02 03-05-2024 1 1   Download

In this work, Al-doped ZnO and Fe-doped ZnO nanoparticles have been synthesized through the coprecipitationannealing method to create new and safer UV filters for sunscreen. The effects of metal doping on phase composition, crystal structure, surface morphology, specific surface area, and elemental composition were characterized by X-ray diffraction, Raman spectroscopy, field emission electron scanning microscopy, nitrogen adsorption-desorption experiments and energy-dispersive X-ray spectroscopy, respectively.

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In this study, we synthesized hydroxyapatite (HA) on polyvinyl alcohol/TiO2 (PVA/TiO2) in which TiO2 was prepared by the sol-gel method. HA was formed by immersing the membrane in the simulated body fluid (SBF) solution. We improved the mechanical strength of the membranes by adding glutaraldehyde (GA) combining with heat treatment to cross-link the polymer network.

14p dianmotminh02 03-05-2024 1 1   Download

The material’s structure was analyzed through X-ray diffraction and scanning electron microscopy. The fabricated materials consist of NiTiO3 with a rhombohedral phase structure and CoFe2O4 with a cubic structure. The effect of sintering temperature and dwell time on the phase, microstructure, and ferroelectric properties of the ceramics was examined.

12p dianmotminh02 03-05-2024 1 1   Download

TiO2 nanoparticles with crystallite size less than 15 nm were prepared from TiCl4 precursor by a modified sol-gel route. As-prepared TiO2 nanoparticles were extensively characterized using X-ray diffractometry, and their crystallite size was calculated using Debye-Scherrer formula.

11p viohoyo 25-04-2024 4 2   Download

Ebook "Consequences of combinatorial studies of positive electrodes for li-ion batteries" help resolve a number of points of confusion and contradiction in the literature. Amongst other important findings, the compositions and synthesis conditions giving rise to layered-layered nano-composites are presented and electrochemical results are used to show how better electrode materials can be achieved by making samples in the single phase-layered regions.

174p tudohanhtau1006 29-03-2024 2 1   Download

In ebook "In-situ small-angle X-ray scattering investigation of transient nanostructure of multi-phase polymer materials under mechanical deformation" the evolution of the materials structure is visualized and quantitatively analyzed from exhaustive sequences of scattering images. Three different classes of polymer composites are presented as typical and illustrative examples. The obtained results illustrate that the interactions of their components can cause unpredictable structural effects, ultimately leading to a weakening of the material, where a reinforcement was expected.

117p coduathanh1122 27-03-2024 1 1   Download

Ebook "Surface analysis and techniques in biology" summarizes the main surface analysis techniques that are being used to study biological specimens/systems. The compilation of chapters in this book highlight the benefits that surface analysis provides. The outer layer of bulk solid or liquid samples is referred to as the surface of the sample/material. At the surface, the composition, microstructure, phase, chemical bonding, electronic states, and/or texture is often different than that of the bulk material.

333p cotieubac1004 15-03-2024 5 0   Download

Ebook "Quantitative thin-layer chromatography: A practical survey" is widely used particularly for pharmaceutical and food analysis. While there are a number of books on the qualitative identification of chemical substances by TLC, the unique focus here is on quantitative analysis. The authors describe all steps of the analytical procedure, beginning with the basics and equipment for quantitative TLC followed by sample pretreatment and sample application, development and staining, scanning, and finally statistical and chemometrics data evaluation and validation.

399p manmanthanhla0201 26-02-2024 7 1   Download

Part 2 book "Introductory chemical engineering thermody" includes content: Phase equilibrium in a pure fluid, introduction to multicomponent systems; an introduction to activity models; van der waals activity models; local composition activity models; liquid liquid and solid liquid phase equilibria; phase equilibria in mixtures by an equation of state; advanced phase diagrams; reaction equilibria; electrolyte solutions; molecular association and solvation.

740p muasambanhan06 01-02-2024 0 0   Download

Part 1 book "Degarmo’s materials and processes in manufacturing" includes content: Introduction to Degarmo’s materials and processes in manufacturing; properties of materials; nature of metals and alloys; equilibrium phase diagrams and the iron–carbon system; heat treatment; ferrous metals and alloys; nonferrous metals and alloys; nonmetallic materials - plastics, elastomers, ceramics, and composites; material selection; measurement and inspection and testing; fundamentals of casting; expendable mold casting processes; multiple use mold casting processes.

351p muasambanhan06 03-02-2024 2 1   Download

Ebook "Cement and concrete chemistry" describes cement clinker formation. It covers multicomponent systems, clinker phase structures and their reactions with water, hydrate composition and structure, as well as their physical properties. The mineral additions to cement are described as are their influence on cement-paste properties. Special cements are also discussed.

705p nhanphanguyet 28-01-2024 7 2   Download

Thermal energy storage is gaining more interest as people aim to utilization of solar energy. The thermal energy can be stored in the form of latent heat and used for building applications that require increasing energy. This report investigated the wet impregnation method for the synthesis of thermal storage material, namely phase change composite (PCC) for two purposes: to create a simple method for the synthesis of PCC and study behaviors of phase change material (PCM) when confined inside the pore.

8p vimichaelfaraday 28-12-2023 6 3   Download

This practice covers procedures and definitions for estimating ferrite content in certain grades of austenitic ironchromium-nickel alloy castings that have compositions balanced to create the formation of ferrite as a second phase in amounts controlled to be within specified limits. Methods are described for estimating ferrite content by chemical, magnetic, and metallographic means.

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Part 1 of ebook "Food chemistry (4th revised and extended edition)" provides readers with contents including: water; phase transition of foods containing water; amino acids, peptides, proteins; carbamoyl and thiocarbamoyl derivatives; mutagenic heterocyclic compounds ; enzymes; lipids; crystalline structure, melting points; carbohydrates; chemical reactions and derivatives; aroma compounds; aroma extract dilution analysis; vitamins; minerals; food additives;...

510p lytamnguyet 04-08-2023 4 3   Download

The findings make it possible to carry out the directed synthesis of catalysts based on the Ce eFeeO system with specific phases, dispersion, and morphological composition for efficient hydrogen oxidation at moderate temperatures.

10p viberbers 09-08-2023 6 2   Download