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Author: Noboru Ichinose
Publisher: Springer Science & Business Media
ISBN: 1447118081
Category : Science
Languages : en
Pages : 230
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Book Description
If a substance is repeatedly subdivided, the result is what are known as "microscopic particles". These particles are distinguished from the solid mass which they originally formed by the size of the surface area per unit weight. This simple difference holds true down to a certain lower size limit, and when this limit is exceeded, a new state of matter is reached, in which the behavior of the particles is quite different to that of the original solid. Particles in this state are termed "superfine particles", and are distinct from ordinary particles. The size of the superfine particles, that is to say the size limit below which particle behavior is completely different from the behavior of the original solid, varies a good deal depending on the physical properties of the substance in question. Properties such as magnetism and electrical resistance are closely related to the internal structural properties of the particles themselves, such as the magnetization processes of their respective magnetic domains, and the mean free path of charged bodies. This internal structure therefore limits the size of the superfine particles. In ceramic processing, on the other hand, the surface area of the particles themselves becomes an even more important factor than their internal structure. In this case, the size of the superfine particles is determined by the interaction between water and solvents on the surface of the particles.
Author: Noboru Ichinose
Publisher: Springer Science & Business Media
ISBN: 1447118081
Category : Science
Languages : en
Pages : 230
Get Book
Book Description
If a substance is repeatedly subdivided, the result is what are known as "microscopic particles". These particles are distinguished from the solid mass which they originally formed by the size of the surface area per unit weight. This simple difference holds true down to a certain lower size limit, and when this limit is exceeded, a new state of matter is reached, in which the behavior of the particles is quite different to that of the original solid. Particles in this state are termed "superfine particles", and are distinct from ordinary particles. The size of the superfine particles, that is to say the size limit below which particle behavior is completely different from the behavior of the original solid, varies a good deal depending on the physical properties of the substance in question. Properties such as magnetism and electrical resistance are closely related to the internal structural properties of the particles themselves, such as the magnetization processes of their respective magnetic domains, and the mean free path of charged bodies. This internal structure therefore limits the size of the superfine particles. In ceramic processing, on the other hand, the surface area of the particles themselves becomes an even more important factor than their internal structure. In this case, the size of the superfine particles is determined by the interaction between water and solvents on the surface of the particles.
Author: Masayoshi Okubo
Publisher: Springer Science & Business Media
ISBN: 9783540229230
Category : Technology & Engineering
Languages : en
Pages : 388
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Book Description
In this special volume on polymer particles, recent trends and developments in the synthesis of nano- to micron-sized polymer particles by radical polymerization (Emulsion, Miniemulsion, Microemulsion, and Dispersion Polymerizations) of vinyl monomers in environmentally friendly heterogeneous aqueous and supercritical carbon dioxide fluid media are reviewed by prominent worldwide researchers. In addition to the important challenges and possibilities with regards to design and preparation of functionalized polymer particles of controlled size, the topics described are of great current interest due to the increased awareness of environmental issues.
Author: Robert F Cook
Publisher: John Wiley & Sons
ISBN: 1119850932
Category : Technology & Engineering
Languages : en
Pages : 420
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Book Description
A holistic and straightforward analysis framework for understanding particle strength distributions In Particle Strengths: Extreme Value Distributions in Fracture, distinguished researcher Dr. Robert F. Cook delivers a thorough exploration of the science and related engineering of fracture strength distributions of single particles tested in diametral compression. In the book, the author explains particle strengths in the broader context of material strengths to permit readers to design with particles in systems in which mechanical properties are crucial to application, manufacturing, and handling. Particle Strengths compiles published data on particle strengths into a common format that includes over 140 materials systems and over 270 published strength distributions derived from over 13000 individual particle strength measurements. It offers physically consistent descriptions of strength behavior, including the strength threshold, using simple polynomial distribution functions that can easily be implemented. Readers will also find: A thorough introduction to particles and particle loading, including discussions of particle failure and human activity Comprehensive explorations of stochastic scaling of particle strength distributions, including concave and sigmoidal stochastic distributions Practical discussions of agglomerate particle strengths, including those relevant to pharmaceuticals, foods, and catalysts Detailed treatments of applications and scaling of particle strengths, including particle crushing energy and grinding particle reliability Perfect for materials scientists and engineers, mining and construction engineers, and environmental scientists, Particle Strengths: Extreme Value Distributions in Fracture will also benefit anthropologists, zoologists, pharmaceutical scientists, biomaterials scientists and engineers, and graduate students studying materials science, and chemical, mechanical, and biomedical engineering.
Author: Martin J. Rhodes
Publisher: Wiley
ISBN: 9780470014288
Category : Technology & Engineering
Languages : en
Pages : 474
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Book Description
Particle technology is a term used to refer to the science and technology related to the handling and processing of particles and powders. The production of particulate materials, with controlled properties tailored to subsequent processing and applications, is of major interest to a wide range of industries, including chemical and process, food, pharmaceuticals, minerals and metals companies and the handling of particles in gas and liquid solutions is a key technological step in chemical engineering. This textbook provides an excellent introduction to particle technology with worked examples and exercises. Based on feedback from students and practitioners worldwide, it has been newly edited and contains new chapters on slurry transport, colloids and fine particles, size enlargement and the health effects of fine powders. Topics covered include: Characterization (Size Analysis) Processing (Granulation, Fluidization) Particle Formation (Granulation, Size Reduction) Storage and Transport (Hopper Design, Pneumatic Conveying, Standpipes, Slurry Flow) Separation (Filtration, Settling, Cyclones) Safety (Fire and Explosion Hazards, Health Hazards) Engineering the Properties of Particulate Systems (Colloids, Respirable Drugs, Slurry Rheology) This book is essential reading for undergraduate students of chemical engineering on particle technology courses. It is also valuable supplementary reading for students in other branches of engineering, applied chemistry, physics, pharmaceutics, mineral processing and metallurgy. Practitioners in industries in which powders are handled and processed may find it a useful starting point for gaining an understanding of the behavior of particles and powders. Review of the First Edition taken from High Temperatures - High pressures 1999 31 243 – 251 "..This is a modern textbook that presents clear-cut knowledge. It can be successfully used both for teaching particle technology at universities and for individual study of engineering problems in powder processing."
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 78
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Book Description
Author:
Publisher: Allied Publishers
ISBN: 9788177640373
Category : Materials at high temperatures
Languages : en
Pages : 276
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Book Description
Author: Sunggyu Lee
Publisher: CRC Press
ISBN: 9781138077393
Category :
Languages : en
Pages : 342
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Book Description
Particle Technology and Applications presents the theoretical and technological background of particle science and explores up-to-date applications of particle technologies in the chemical, petrochemical, energy, mechanical, and materials industries. It looks at the importance of particle science and technology in the development of efficient chemical processes and novel functional materials. With peer-reviewed chapters written by a select group of academic and industry experts, the book provides examples of particle technology and its advanced industrial applications. It includes the necessary scientific background of particle technology as well as relevant technological details of the application areas. This helps readers grasp specific details of the applied technology, since the advanced particle technology can directly or synergistically have an impact on outcomes, such as the development of a targeted functional material, enhancement of existing processing techniques, and modification of the properties of existing materials. Presenting a consistent scientific treatment of all topics, this comprehensive yet accessible book covers a variety of practical applications and relevant theoretical foundation of particle science and technology. It will help readers tackle new challenges in process and product development and create new methodologies in the clean technology sector.
Author: D. Venkateswarlu
Publisher:
ISBN:
Category : Particles
Languages : en
Pages : 668
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Book Description
Author: Mel Schwartz
Publisher: CRC Press
ISBN: 1420039342
Category : Technology & Engineering
Languages : en
Pages : 711
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Book Description
Materials selection is a crucial factor in determining the cost, quality, and corrosion protection for every engineering project. The variety of increasingly durable materials and their combinations, coupled with the rise of new and more critical service requirements and the demand for lower costs, have expanded upon trial-and-error criteria into m
Author: Tadao Sugimoto
Publisher: CRC Press
ISBN: 9780824700010
Category : Science
Languages : en
Pages : 764
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Book Description
"The first comprehensive book on fine particle synthesis that ranges from fundamental principles to the most advanced concepts, highlighting mondispersed particles from nanometers to micrometers. Describes mechanisms of formation and specific characteristics of each family of compounds while identifying problems and proposing solutions. Contains subsections that analyze growth processes, characterize products, and delineate physical and chemical results based on causality."
