Physical And Mathematical Modeling Of Water Atomization For Metal Powder Production

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Physical and Mathematical Modeling of Water Atomization for Metal Powder Production

Author : Ali Asgarian
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (133 download)

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Book Synopsis Physical and Mathematical Modeling of Water Atomization for Metal Powder Production by : Ali Asgarian

Download or read book Physical and Mathematical Modeling of Water Atomization for Metal Powder Production written by Ali Asgarian and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water atomization (WA) of a molten metal is a well-established and cost-effective industrial approach to producing low-reactive metal powders. However, WA powders are characterized by a wide spread of particle size unsuitable for certain powder metallurgy applications. To address this limitation, this thesis examines some of the poorly understood fluid mechanics phenomena involved in WA, to develop fundamental knowledge that describes the relationships between the design and operating conditions of a water atomizer, and the particle size distribution (PSD) of the resulting powder. In the first part of the thesis, a flat fan water spray is studied by experiment and computational fluid dynamics (CFD) simulation. The disintegration of a liquid sheet into a spray is examined, an optical technique to measure a multi-range droplet size distribution (DSD) in a developing spray is presented, and an enhanced model to quantify the momentum flux of a spray where it impinges a melt stream is proposed. The model suggests that the momentum flux of a spray, and thus the atomization capacity, increases with spray pressure and decreases with the travel distance of the spray from the nozzle to the impingement point and with the spray spreading angle. In the second part of the thesis, the above findings are examined via production of a low melting point alloy (Bi-42% Sn) powder using a laboratory-scale water atomizer that was designed and built for this work. The effects of various design and operating parameters, including water pressure, melt superheat, apex angle, and spray configuration on the mass median size (d50) and standard deviation (SD) of the powder PSD are investigated, and correlations proposed. These correlations can be used to control the size features of water atomized powders produced at industrial scale, by engineering various design and operating parameters, and thus expanding the market for water atomized powders.

Atomization

Author : Alan Lawley
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Atomization by : Alan Lawley

Download or read book Atomization written by Alan Lawley and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Production of Metal Powders by Atomization

Author : John K. Beddow
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Production of Metal Powders by Atomization by : John K. Beddow

Download or read book The Production of Metal Powders by Atomization written by John K. Beddow and published by . This book was released on 1978 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Processing of Metal and Ceramic Powders

Author : Randall M. German
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.:/5 (44 download)

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Book Synopsis Processing of Metal and Ceramic Powders by : Randall M. German

Download or read book Processing of Metal and Ceramic Powders written by Randall M. German and published by . This book was released on 1982 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metals Handbook: Powder metallurgy

Author : ASM Handbook Committee
Publisher :
ISBN 13 :
Total Pages : 928 pages
Book Rating : 4.3/5 (97 download)

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Book Synopsis Metals Handbook: Powder metallurgy by : ASM Handbook Committee

Download or read book Metals Handbook: Powder metallurgy written by ASM Handbook Committee and published by . This book was released on 1978 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Recent Developments in Computer Modeling of Powder Metallurgy Processes

Author : Antonios Zavaliangos
Publisher : IOS Press
ISBN 13 : 9781586030940
Total Pages : 298 pages
Book Rating : 4.0/5 (39 download)

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Book Synopsis Recent Developments in Computer Modeling of Powder Metallurgy Processes by : Antonios Zavaliangos

Download or read book Recent Developments in Computer Modeling of Powder Metallurgy Processes written by Antonios Zavaliangos and published by IOS Press. This book was released on 2001 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 25 papers from the NATO Advanced Research Workshop on Recent Advances of Computer Modeling of Powder Metallurgy Processes. The papers address cold compaction, sintering, high-temperature compaction, processing modeling, and processes and materials. The integration of mechanical and physical aspects of P/M processes is emphasized. Contributors include researchers from Europe, the United States, Korea, and Japan. Author index only. c. Book News Inc

The Production of Metal Powders by Atomization

Author : John Keith Beddow
Publisher :
ISBN 13 : 9780598095923
Total Pages : 106 pages
Book Rating : 4.0/5 (959 download)

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Book Synopsis The Production of Metal Powders by Atomization by : John Keith Beddow

Download or read book The Production of Metal Powders by Atomization written by John Keith Beddow and published by . This book was released on 1978 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metals Handbook

Author : American Society for Metals
Publisher :
ISBN 13 : 9780871700131
Total Pages : 928 pages
Book Rating : 4.7/5 (1 download)

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Book Synopsis Metals Handbook by : American Society for Metals

Download or read book Metals Handbook written by American Society for Metals and published by . This book was released on 1978 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis of Atomization Systems Through Mathematical Modeling and Experimentation

Author :
Publisher :
ISBN 13 :
Total Pages : 272 pages
Book Rating : 4.:/5 (939 download)

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Download or read book Analysis of Atomization Systems Through Mathematical Modeling and Experimentation written by and published by . This book was released on 2010 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Metal Sprays and Spray Deposition

Author : Hani Henein
Publisher : Springer
ISBN 13 : 3319526898
Total Pages : 569 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Metal Sprays and Spray Deposition by : Hani Henein

Download or read book Metal Sprays and Spray Deposition written by Hani Henein and published by Springer. This book was released on 2017-07-22 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes and illustrates metal spray and spray deposition from the process engineering, metallurgical, and application viewpoints. The authors include step-by-step fundamental information for the metal spray process and detail current engineering developments and applications. They offer industry insight on non-equilibrium solidification processes for yielding stable metal structures and properties.

Handbook of Non-Ferrous Metal Powders

Author : Oleg D Neikov
Publisher : Elsevier
ISBN 13 : 0081005474
Total Pages : 998 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Handbook of Non-Ferrous Metal Powders by : Oleg D Neikov

Download or read book Handbook of Non-Ferrous Metal Powders written by Oleg D Neikov and published by Elsevier. This book was released on 2018-11-30 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Non-Ferrous Metal Powders: Technologies and Applications, Second Edition, provides information on the manufacture and use of powders of non-ferrous metals that has taken place for many years in the area previously known as Soviet Russia. It presents the huge amount of knowledge and experience that has built up over the last fifty years. Originally published in Russia by several prominent scientists, researchers and engineers, this presents an update to the first book that includes sections on classification, properties, treatment methods and production. This updated edition contains new content on the powders, along with newer methods of 3D printing. Covers the manufacturing methods, properties and importance of the following metals: aluminum, titanium, magnesium, copper, nickel, cobalt, zinc, cadmium, noble metals, rare earth metals, lead, tin and bismuth Includes new content on recent advances, such as additive manufacturing and 3D printing of non-ferrous metal alloys and specific powders for advanced techniques, including metal injection molding technologies Expands on topics such as safety engineering in the production of powders and advanced areas of engineering research, such as nanopowder processes

Metals Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1076 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Metals Abstracts by :

Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Atomization of Melts

Author : Andrew J. Yule
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Atomization of Melts by : Andrew J. Yule

Download or read book Atomization of Melts written by Andrew J. Yule and published by Oxford University Press, USA. This book was released on 1994 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first authoritative treatment of the atomization of melts for metal powder production is offered in this book. The unique approach unifies the science, applications and other aspects of this interdisciplinary field, and will be of great interest to research scientists and engineers, aswell as industrial practitioners of the various processes. Related fields of spray forming and coating processes and the atomization of non-metallic melts such as ceramics are also covered.

Advances in Metal Processing

Author : John J. Burke
Publisher : Springer Science & Business Media
ISBN 13 : 1461583004
Total Pages : 388 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Advances in Metal Processing by : John J. Burke

Download or read book Advances in Metal Processing written by John J. Burke and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Journal of Powder Metallurgy

Author :
Publisher :
ISBN 13 :
Total Pages : 650 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis International Journal of Powder Metallurgy by :

Download or read book International Journal of Powder Metallurgy written by and published by . This book was released on 1997 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:

PM'94

Author : Société française de métallurgie et de matériaux
Publisher :
ISBN 13 :
Total Pages : 852 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis PM'94 by : Société française de métallurgie et de matériaux

Download or read book PM'94 written by Société française de métallurgie et de matériaux and published by . This book was released on 1993 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simulation of Powder Metal Fabrication with High Pressure Gas Atomization

Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (683 download)

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Book Synopsis Simulation of Powder Metal Fabrication with High Pressure Gas Atomization by :

Download or read book Simulation of Powder Metal Fabrication with High Pressure Gas Atomization written by and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational/analytical technique has been developed which models the physics of high pressure gas atomization. The technique uses an uncoupled approach, such that the gas flowfield is initially calculated with a commercially-available Navier-Stokes code. The liquid metal droplet breakup, dynamics, and thermodynamics, are then calculated using the pre-computed flowfield by a separate computer program written by the authors. The atomization code models the primary breakup of the liquid metal stream, tracks the droplets resulting from primary breakup through the flowfield until they undergo secondary breakup, and then tracks the subdroplets until they breakup, solidify, or leave the flowfield region of interest. The statistical properties of the metal powder produced are then computed from the characteristics of these droplets. Comparisons between experimental measurements and computations indicate that the Navier-Stokes code is predicting the gas flowfield well, and that the atomization code is properly modeling the physics of the droplet dynamics and breakup.