Download or read book Characterization of Powder Compacts written by and published by . This book was released on 1992 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization Techniques to Validate Models of Density Variations in Pressed Powder Compacts written by and published by . This book was released on 1995 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques for characterizing density gradients generated during typical powder compaction processes are reviewed and several are evaluated. The techniques reviewed are ultrasonic velocity measurements, laser ultrasonic velocity measurements, x-ray radiography, autoradiography, computer tomography (CT), magnetic resonance imaging (MRI), and simple image analysis of polished cross-sections. Experimental results are reported for all of these techniques except autoradiography, CT and MRI. The test specimens examined were right circular cylinders of a high length/diameter ratio (to ensure significant density variation) pressed from commercial spray-dried alumina powders. Although the density gradients could be detected with all four techniques, ultrasonic velocity measurements gave the best contour map of gradients and is therefore most suitable for model validation. On the other hand, it was concluded that x-ray radiography is preferable in situations where cost and/or number of samples are more important that high resolution.

Download or read book Characterization of Powder and Compacts written by Powder Metallurgy World Congress Staff and published by . This book was released on with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation and Characterization of Sintered Ti 6A1 4V Powder Compacts written by Emrah Çelik and published by . This book was released on 2004 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sintered Ti6Al4V powder compacts were prepared using atomized spherical and angular powders in the porosity range of 29-63%. Cylindrical green powder compacts cold compacted at various compaction pressures and then sintered at 1200 C for 2 h. The final porosities and average pore sizes were determined as functions of the applied compaction pressure and powder type. The compression deformation behavior of Ti6Al4V powder compacts was also investigated at quasi-static (1.6x10-3-1.6x10-1s-1) and high strain rate (300 and 900 s-1) conditions using conventional mechanical testing and Split Hopkinson Pressure Bar techniques, respectively. The mean pore size of the compacts varied between 29 and 171 Um depending on the particle size range of the powders used and the compaction pressure applied. Microscopic studies of as-received powders and sintered powder compacts showed that sintering at high temperature (1200oC) and subsequent relatively slow-rate cooling in the furnace transformed the microstructure of spherical powder from the acicular alpha to the Widmanstatten microstructure and angular powder from bimodal to equiaxed+ Widmanstatten microstructure.In compression testing, at both quasi-static and high strain rate conditions, the compacts failed primarily by shear band formation along the diagonal axis 45 C to the loading direction. Increasing strain rate was found to increase both the flow stress and the compressive strength of spherical powder compacts while it did not affect the critical strain for shear localization. The mechanical properties of angular powder compacts were further shown to be a function of powder size; larger the particle size higher the percentage of equiaxed structure while in compacts of particles

Download or read book Characterization of Powders and Aerosols written by Brian H. Kaye and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterization of fine particles is a difficult task! A large number of industries deal with materials in powder form. The properties of these powders depend on their particle size, particle shape and size distributions, surface and porosity. What are the methods? What are the problems? What questions need answering? This new book covers the problems of sampling both powders and aerosols, and discusses calibration standards for different instruments. It takes into account fractionating methods for fine particles, e.g., sieving procedures, sedimentation methods, and the use of cyclones. Image analysis and its use for the measurement of the size and shape of powder grains and light-diffraction techniques for size evaluation are presented. Furthermore, this books covers the most effective methods for measuring surface areas, fractal structures of rough surfaces, and pore structures of porous bodies. Practitioners will find tips for modification of analytical procedures for on-line characterization, and many graphs for comparing data obtained by different methods are presented.

Download or read book Deformation Characterization of Powdered Metals in Compaction and Application of the Finite Element Method to Compaction Processes written by Beong-Bok Hwang and published by . This book was released on 1991 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Non Ferrous Metal Powders written by Oleg D Neikov and published by Elsevier. This book was released on 2009-02-24 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacture and use of the powders of non-ferrous metals has been taking place for many years in what was previously Soviet Russia, and a huge amount of knowledge and experience has built up in that country over the last forty years or so. Although accounts of the topic have been published in the Russian language, no English language account has existed until now.Six prominent academics and industrialists from the Ukraine and Russia have produced this highly-detailed account which covers the classification, manufacturing methods, treatment and properties of the non-ferrous metals ( aluminium, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, lead, tin, bismuth, noble metals and earth metals).The result is a formidable reference source for those in all aspects of the metal powder industry. - Covers the manufacturing methods, properties and importance of the following metals: aluminium, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, noble metals, rare earth metals, lead, tin and bismuth - Expert Russian team of authors, all very experienced - English translation and update of book previously published in Russian

Download or read book Food Powders Properties and Characterization written by Ertan Ermiş and published by Springer Nature. This book was released on 2020-10-29 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food powders are an increasingly important aspect of processed food worldwide. Essential factors such as ease of storage and transport and usage convenience have greatly benefited the food industry and promise further advancements in processing techniques. Food powders can be stored for a longer period of time than other food products, making them essential for food supply in many regions of the world. There have been numerous research works on food powders properties and characterization, but there has not been an updated comprehensive review in this field. Food Powders Properties and Characterization is designed as an essential reference for individuals in the food industry and academia seeking a singular source that covers most of the basic aspects of food powders. With chapters focusing on the general properties of food powders, characterization of particle and bulk properties, adhesion and surface properties, this text presents comprehensive and fully up to date coverage of this challenging and important field.

Download or read book A Computational Framework for the Analysis of Powder Compacts written by Hern Kim and published by . This book was released on 1991 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of Porous Solids and Powders Surface Area Pore Size and Density written by S. Lowell and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth of interest in newly developed porous materials has prompted the writing of this book for those who have the need to make meaningful measurements without the benefit of years of experience. One might consider this new book as the 4th edition of "Powder Surface Area and Porosity" (Lowell & Shields), but for this new edition we set out to incorporate recent developments in the understanding of fluids in many types of porous materials, not just powders. Based on this, we felt that it would be prudent to change the title to "Characterization of Porous Solids and Powders: Surface Area, Porosity and Density". This book gives a unique overview of principles associated with the characterization of solids with regard to their surface area, pore size, pore volume and density. It covers methods based on gas adsorption (both physi and chemisorption), mercury porosimetry and pycnometry. Not only are the theoretical and experimental basics of these techniques presented in detail but also, in light of the tremendous progress made in recent years in materials science and nanotechnology, the most recent developments are described. In particular, the application of classical theories and methods for pore size analysis are contrasted with the most advanced microscopic theories based on statistical mechanics (e.g. Density Functional Theory and Molecular Simulation). The characterization of heterogeneous catalysts is more prominent than in earlier editions; the sections on mercury porosimetry and particularly chemisorption have been updated and greatly expanded.

Download or read book Characterization of Powder Surfaces written by G. D. Parfitt and published by . This book was released on 1976 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Shear and Surface Characterisation of Powder Compacts written by Majid Sarrafi and published by . This book was released on 1985 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: POWDER COMPACTS, POWDERS, METALS, YIELD STRESSES, SHEAR STRESSES, COMPACTION, SURFACE PROPERTIES, TITANIUM DIOXIDE, ADSORPTION, STRESSES.

Download or read book Characterization of Aln and Si3N4 powder compacts using various investigation methods written by Franz F. Huber and published by . This book was released on 1992 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization and Control of Interfaces for High Quality Advanced Materials III written by Kevin Ewsuk and published by John Wiley & Sons. This book was released on 2010-09-29 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume features 59 peer-reviewed papers from ICCCI2009 on interface characterization and control technology, powder and composite processing, joining, the control of airborne particulates, new metallic glasses, and interface phenomena at high temperature. ICCCI2009 was supported by the Global COE Program “Center of Excellence for Advanced Structural and Functional Materials Design” lead by Professor Tomoyuki Kakeshita at Osaka University, the Project on Joining Technology for New Metallic Glasses and Inorganic Materials, the Institute of Materials Research (IMR) of Tohoku University, the Materials and Structures Laboratory (MSL) of the Tokyo Institute of Technology, Kobe Gakuin University, Hosokawa Powder Technology Foundation, the Japan JSPS 124th Committee, and the Joining and Welding Research Institute (JWRI) of Osaka University. Over 160 scientists and engineers from academia and industry from 18 different countries attended ICCCI2009 to see and discuss 140 invited and contributed presentations and posters on the state-of-the-art of interface characterization and control for particulate materials, joining, and nanotechnology.

Download or read book Characterization of Powder Surfaces written by G. D. Parfitt and published by . This book was released on 1976 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization and Control of Interfaces for High Quality Advanced Materials written by Kevin Ewsuk and published by John Wiley & Sons. This book was released on 2012-04-11 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interface characterization and control are critical in the design and manufacture of high quality advanced materials, particularly, for nanomaterials. This proceedings features papers on interface science and technology that provide a unique and state-of-the art perspective on interface characterization and control. Articles from scientists and engineers from 11 different countries address interface control, high temperature interfaces, nanoparticle design, nanotechnology, suspension control, novel processing, particulate materials, microstructure, and hot gas cleaning. This unique volume will serve as a valuable reference for scientists and engineers interested in interfaces, particulate materials, and nanotechnology. Proceedings of the International Conference on ICCCI 2003, Kurashiki, Japan, 2003; Ceramic Transactions, Volume 146.

Download or read book Testing and Characterization of Powders and Fine Particles written by John K. Beddow and published by . This book was released on 1980 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: