Fourier Transform Rheology on Dispersions Based on Newtonian Fluids

Fourier Transform Rheology on Dispersions Based on Newtonian Fluids PDF Author: Kathrin Reinheimer
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832531386
Category : Mathematics
Languages : en
Pages : 200

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Book Description
Dispersionen sind ein heterogenes Gemisch aus zwei Stoffen, die sich nicht miteinander mischen. In der vorliegenden Arbeit werden sowohl Suspensionen bestehend aus einer festen dispersen Phase in einem flussigen Dispersionsmedium, Emulsionen bestehen aus zwei nicht mischbaren Flussigkeiten als auch Schaume, gebildet aus einer Gasphase dispergiert in einer Flussigkeit, untersucht. Als Hauptcharakterisierungsmethode dient die Fourier Transformations-Rheologie (FT-Rheologie), welches eine mechanische Charakterisierungsmethode im nichtlinearen Bereich darstellt.

Fourier Transform Rheology on Dispersions Based on Newtonian Fluids

Fourier Transform Rheology on Dispersions Based on Newtonian Fluids PDF Author: Kathrin Reinheimer
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832531386
Category : Mathematics
Languages : en
Pages : 200

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Book Description
Dispersionen sind ein heterogenes Gemisch aus zwei Stoffen, die sich nicht miteinander mischen. In der vorliegenden Arbeit werden sowohl Suspensionen bestehend aus einer festen dispersen Phase in einem flussigen Dispersionsmedium, Emulsionen bestehen aus zwei nicht mischbaren Flussigkeiten als auch Schaume, gebildet aus einer Gasphase dispergiert in einer Flussigkeit, untersucht. Als Hauptcharakterisierungsmethode dient die Fourier Transformations-Rheologie (FT-Rheologie), welches eine mechanische Charakterisierungsmethode im nichtlinearen Bereich darstellt.

Rheology of Fresh Cement-Based Materials

Rheology of Fresh Cement-Based Materials PDF Author: Qiang Yuan
Publisher: CRC Press
ISBN: 1000821250
Category : Technology & Engineering
Languages : en
Pages : 339

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Book Description
This book introduces fundamentals, measurements, and applications of rheology of fresh cement-based materials. The rheology of a fresh cement-based material is one of its most important aspects, characterizing its flow and deformation, and governing the mixing, placement, and casting quality of a concrete. This is the first book to bring the field together on an increasingly important topic, as new types of cement-based materials and new concrete technologies are developed. It describes measurement equipment, procedures, and data interpretation of the rheology of cement paste and concrete, as well as applications such as self-compacting concrete, pumping, and 3D printing. A range of other cement-based materials such as fiber-reinforced concrete, cemented paste backfills, and alkali-activated cement are also examined. Rheology of Fresh Cement-Based Materials serves as a reference book for researchers and engineers, and a textbook for advanced undergraduate and graduate students.

Rheology and Fourier-Transform Rheology on Water-Based Systems

Rheology and Fourier-Transform Rheology on Water-Based Systems PDF Author: Christopher Klein
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832519882
Category : Science
Languages : en
Pages : 249

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Book Description
The influence of shear fields on water-based systems was investigated within this thesis. The non-linear rheological behaviour of spherical and rod-like particles was examined with Fourier-Transform rheology under LAOS conditions. As a model system for spherical particles two different kinds of polystyrene disper- sions, with a solid content higher than 0.3 each, were synthesised within this work. Due to the differences in polydispersity and Debye-length, differences were also found in the rheology. In the FT-rheology both kinds of dispersions showed a similar rise in the intensities of the magnitudes of the odd higher harmonics, which were predicted by a model. The, in some cases additionally appearing second harmonics, were not predicted. A novel method to analyse the time domain signal was developed, that splits the time domain signal up in four characteristic functions. Those characteristic functions correspond to rheological phenomena. In some cases the intensities of the Fourier components can interfere negatively. FD-virus particles were used as a rod-like model system, which already shows a highly non-linear behaviour at concentrations below 1. % wt. Predictions for the dependence of the higher harmonics from the strain amplitude described the non-linear behaviour well at large, but no so good at small strain amplitudes. Ad- ditionally the trends of the rheological behaviour could be described by a theory for rod-like particles. An existing rheo-optical set-up was enhanced by reducing the background birefringence by a factor of 20 and by increasing the time resolution by a factor of 24. Additionally a combination of FT-rheology and rheo-optics was achieved. The influence of a constant shear field on the crystallisation process of zinc oxide in the presence of a polymer was examined. The crystallites showed a reduction in length by a factor of 2. The directed addition of polymers in combi- nation with a defined shear field can be an easy way for a defined change of the form of crystallites.

Advances in Food Rheology and Its Applications

Advances in Food Rheology and Its Applications PDF Author: Jasim Ahmed
Publisher: Woodhead Publishing
ISBN: 0128239840
Category : Technology & Engineering
Languages : en
Pages : 786

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Book Description
Advances in Food Rheology and Its Applications: Development in Food Rheology, Second Edition presents the latest advances in the measurement and application of food rheology, one of the most important tools for food companies when characterizing ingredients and final products, and a predictor of product performance and consumer acceptance. This second edition provides coverage of new rheological measurement techniques, including ultrasonic measurements of rheological properties of food and NMR approach, and precision in data handling, including coverage of mathematical modeling of rheological properties. As the range of food products has also broadened as a result of consumer demands and preference, this second edition includes a series of new chapters on dairy and plant-based foods. The amalgamation between food texture and sensory attributes will also be addressed. In addition, coverage of the correlation between rheological behavior and modeling of the fluid in a human stomach and food digestion will be assessed. A special focus has given on rheology of gel systems, including, food hydrogels, bigel and organogels. Written for food scientists, food technologists, sensory scientists, and others working in academia and industry, Advances in Food Rheology and Its Applications: Development in Food Rheology, Second Edition will be a welcomed and updated reference. - Considers the impact of artificial intelligence and machine vision on rheological characterization and process control - Presents ultrasonic measurements of rheological properties of food and NMR approach, and precision in data handling - Covers thermodynamic approach of rheology and interfacial rheology - Explains various gel systems rheology, including bogels and organogo gels

Springer Handbook of Experimental Fluid Mechanics

Springer Handbook of Experimental Fluid Mechanics PDF Author: Cameron Tropea
Publisher: Springer Science & Business Media
ISBN: 3540251413
Category : Science
Languages : en
Pages : 1570

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Book Description
Accompanying DVD-ROM contains ... "all chapters of the Springer Handbook."--Page 3 of cover.

Rheology of Polymer Blends and Nanocomposites

Rheology of Polymer Blends and Nanocomposites PDF Author: Sabu Thomas
Publisher: Elsevier
ISBN: 0128169567
Category : Technology & Engineering
Languages : en
Pages : 326

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Book Description
Rheology of Polymer Blends and Nanocomposites: Theory, Modelling and Applications focuses on rheology in polymer nanocomposites. It provides readers with a solid grounding in the fundamentals of rheology, with an emphasis on recent advancements. Chapters explore potential future applications for nanocomposites and polymer blends, giving readers a thorough understanding of the specific features derived from rheology as a tool for the study of polymer blends and nanocomposites. This book is ideal for industrial and academic researchers in the field of polymer blends and nanocomposites, but is also a great resource for anyone who wants to learn about the applications of rheology. - Sets out the principles of rheology as it is applied to polymer blends and nanocomposites - Demonstrates how rheological techniques are best applied to different classes of nanocomposites - Assesses the opportunities and major challenges of rheological approaches to polymer blends and nanocomposites

Tribology of Polymer and Polymer Composites for Industry 4.0

Tribology of Polymer and Polymer Composites for Industry 4.0 PDF Author: Hemalata Jena
Publisher: Springer Nature
ISBN: 9811639035
Category : Technology & Engineering
Languages : en
Pages : 211

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Book Description
This book first introduces polymers and polymer composites which are widely used in different industrial and engineering applications where the proper selection of fiber, filler, and polymer can be tailored for particular application. The primary objective of this book is to broaden the knowledge of tribology of polymer composites in a new dimension for Industry 4.0. For instance, the book covers polymer composites used as self-lubricating material used in the automotive industry and other manufacturing equipment to reduce the effect of energy loss due to friction and wear. This book is of interest to researchers and industrial practitioners who work in the field of tribology of polymer composites, manufacturing equipment and production engineering.

Colloidal Suspension Rheology

Colloidal Suspension Rheology PDF Author: Jan Mewis
Publisher: Cambridge University Press
ISBN: 0521515998
Category : Science
Languages : en
Pages : 417

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Book Description
Presented in an accessible and introductory manner, this is the first book devoted to the comprehensive study of colloidal suspensions.

Journal of Rheology

Journal of Rheology PDF Author:
Publisher:
ISBN:
Category : Rheology
Languages : en
Pages : 932

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Book Description
Includes abstracts from the Journal of the Society of Rheology, Japan.

Rheology - Volume II

Rheology - Volume II PDF Author: Crispulo Gallegos
Publisher: EOLSS Publications
ISBN: 1848263201
Category : Economic development
Languages : en
Pages : 468

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Book Description
Rheology is a component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty Encyclopedias. Rheology is the study of the flow of matter. It is classified as a physics discipline and focuses on substances that do not maintain a constant viscosity or state of flow. That can involve liquids, soft solids and solids that are under conditions that cause them to flow. It applies to substances which have a complex molecular structure, such as muds, sludges, suspensions, polymers and other glass formers, as well as many foods and additives, bodily fluids and other biological materials. The theme on Rheology focuses on five main areas, namely, basic concepts of rheology; rheometry; rheological materials, rheological processes and theoretical rheology. Of course, many of the chapters contain material from more than one general area. Rheology is an interdisciplinary subject which embraces many aspects of mathematics, physics, chemistry, engineering and biology. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.