Additives and Crystallization Processes

Additives and Crystallization Processes
Author :
Publisher : John Wiley & Sons
Total Pages : 468
Release :
ISBN-10 : 0470517824
ISBN-13 : 9780470517826
Rating : 4/5 (24 Downloads)

Synopsis Additives and Crystallization Processes by : Keshra Sangwal

Crystal growth technology involves processes for the production of crystals essential for microelectronics, communication technologies, lasers and energy producing and energy saving technology. A deliberately added impurity is called an additive and in different industries these affect the process of crystal growth. Thus, understanding of interactions between additives and the crystallizing phases is important in different processes found in the lab, nature and in various industries. This book presents a generalized description of the mechanisms of action of additives during nucleation, growth and aggregation of crystals during crystallization and has received endorsement from the President of the International Organization for Crystal Growth. It is the first text devoted to the role of additives in different crystallization processes encountered in the lab, nature and in industries as diverse as pharmaceuticals, food and biofuels. A unique highlight of the book are chapters on the effect of additives on crystal growth processes, since the phenomena discussed is an issue of debate between researchers

Crystallization Modalities in Polymer Melt Processing

Crystallization Modalities in Polymer Melt Processing
Author :
Publisher : Springer Science & Business Media
Total Pages : 228
Release :
ISBN-10 : 9783211876343
ISBN-13 : 3211876340
Rating : 4/5 (43 Downloads)

Synopsis Crystallization Modalities in Polymer Melt Processing by : Hermann Janeschitz-Kriegl

The first book to explicitly focus on the processing of crystallizing polymers, it presents innovative research on diverse interfering processes to help clarify the subject. The first to address the unexpectedly strong interaction of three transport phenomena: heat transfer, momentum transfer (rheology) with crystallization kinetics. With many applications, most well-known crystalline structures are found in polymers like high and low density polyethylene, polypropylene, polybutene and their copolymers. Common problems such as anisotropic shrinkage, warping, and split fiber formation are covered. In addition to applications on amorphous polymers, attempts at numerical simulation on crystallizing polymers are also examined. A feeling for the origins of undesired orientations and frozen-in stresses often associated with the manufacturing process is provided to polymer chemists, applied physicists, rheologists, plastics engineers, mold makers and material scientists.

Kidney Stones

Kidney Stones
Author :
Publisher : Jaypee Brothers Medical Publishers
Total Pages : 753
Release :
ISBN-10 : 9789351529422
ISBN-13 : 9351529428
Rating : 4/5 (22 Downloads)

Synopsis Kidney Stones by : Fredric Coe

This book is the new edition of this comprehensive guide to the medical and surgical management of kidney stones. Divided into three main sections, the text begins with discussion on the basic formation of kidney stones, followed by mineral metabolism and diseases that lead to the formation of stones, with the final section describing surgical management techniques. The second edition has been thoroughly revised and expanded with new topics including imaging methods, non invasive surgical techniques, and management in special cases such as pregnancy. This new edition also includes discussion on stones in children. With an internationally recognised author team led by US-based specialists, this 900-page text is highly illustrated with clinical photographs and diagrams. Previous edition published in 1995. Key Points Comprehensive guide to medical and surgical management of kidney stones Fully revised second edition, with many new topics Highly illustrated with clinical photographs and diagrams over 900 pages Internationally recognised, US-based author team

Role of Strongly Interacting Additives in Tuning the Structure and Properties of Polymer Systems

Role of Strongly Interacting Additives in Tuning the Structure and Properties of Polymer Systems
Author :
Publisher :
Total Pages : 174
Release :
ISBN-10 : OCLC:785407382
ISBN-13 :
Rating : 4/5 (82 Downloads)

Synopsis Role of Strongly Interacting Additives in Tuning the Structure and Properties of Polymer Systems by : Vikram Kumar Daga

Block copolymer (BCP) nanocomposites are an important class of hybrid materials in which the BCP guides the spatial location and the periodic assembly of the additives. High loadings of well-dispersed nanofillers are generally important for many applications including mechanical reinforcing of polymers. In particular the composites shown in this work might find use as etch masks in nanolithography, or for enabling various phase selective reactions for new materials development. This work explores the use of hydrogen bonding interactions between various additives (such as homopolymers and non-polymeric additives) and small, disordered BCPs to cause the formation of well-ordered morphologies with small domains. A detailed study of the organization of homopolymer chains and the evolution of structure during the process of ordering is performed. The results demonstrate that by tuning the selective interaction of the additive with the incorporating phase of the BCP, composites with significantly high loadings of additives can be formed while maintaining order in the BCP morphology. The possibility of high and selective loading of additives in one of the phases of the ordered BCP composite opens new avenues due to high degree of functionalization and the proximity of the additives within the incorporating phase. This aspect is utilized in one case for the formation of a network structure between adjoining additive cores to derive mesoporous inorganic materials with their structures templated by the BCP. The concept of additive-driven assembly is extended to formulate BCP-additive blends with an ability to undergo photo-induced ordering. Underlying this strategy is the ability to transition a weakly interacting additive to its strongly interacting form. This strategy provides an on-demand, non-intrusive route for formation of well-ordered nanostructures in arbitrarily defined regions of an otherwise disordered material. The second area explored in this dissertation deals with the incorporation of additives into photoresists for next generation extreme ultra violet (EUV) photolithography applications. The concept of hydrogen bonding between the additives and the polymeric photoresist was utilized to cause formation of a physical network that is expected to slow down the diffusion of photoacid leading to better photolithographic performance (25-30 nm resolution obtained).

Biomineralization

Biomineralization
Author :
Publisher : John Wiley & Sons
Total Pages : 700
Release :
ISBN-10 : 047098631X
ISBN-13 : 9780470986318
Rating : 4/5 (1X Downloads)

Synopsis Biomineralization by : Astrid Sigel

Biomineralization is a hot topic in the area of materials, and this volume in the Metals Ions in Life Sciences series takes a systematic approach, dealing with all aspects from the fundamentals to applications. Key biological features of biomineralization, such as gene directed growth and the role of enzymes are covered, as are new areas, including copper/zinc in the jaws of invertebrates or magnetic biomaterials that help birds with navigation

Research Methods in Biomineralization Science

Research Methods in Biomineralization Science
Author :
Publisher : Elsevier
Total Pages : 703
Release :
ISBN-10 : 9780124166554
ISBN-13 : 0124166555
Rating : 4/5 (54 Downloads)

Synopsis Research Methods in Biomineralization Science by :

This new volume of Methods in Enzymology continues the legacy of this premier serial with quality chapters authored by leaders in the field. This volume covers research methods in biomineralization science, and includes sections on such topics as determining solution chemistry, structure and nucleation; probing structure and dynamics at surfaces; and interfaces mapping biomineral and morphology and ultrastructure. - Continues the legacy of this premier serial with quality chapters authored by leaders in the field - Covers research methods in biomineralization science - Contains sections on such topics as and includes sections on such topics as determining solution chemistry, structure and nucleation; probing structure and dynamics at surfaces; and interfaces mapping biomineral and morphology and ultrastructure

New Perspectives on Mineral Nucleation and Growth

New Perspectives on Mineral Nucleation and Growth
Author :
Publisher : Springer
Total Pages : 0
Release :
ISBN-10 : 3319456679
ISBN-13 : 9783319456676
Rating : 4/5 (79 Downloads)

Synopsis New Perspectives on Mineral Nucleation and Growth by : Alexander E.S. Van Driessche

In the last decade, numerous studies have demonstrated the existence of alternative pathways to nucleation and crystallisation that oppose the classical view. Such proposed scenarios include multistage reactions proceeding via various precursor species and/or intermediate phases. The aim of this book is to review and discuss these recent advances in our understanding of the early stages of mineralisation through a series of contributions that address both experimental and theoretical studies about the formation and nature of initial precursor species (e.g., prenucleation clusters, dense liquid phases, amorphous nanoparticles, etc.) as well as their transformations leading to the stable mineral phase. Several chapters are devoted to cutting-edge analytical techniques used for investigating the above processes in situ, in real time and at conditions relevant to both natural and industrial processes. At the end of the book, the editors summarize the key questions that still need to be addressed in order to establish a complete picture of the nucleation and growth processes involved during the formation of minerals

Biomineralization

Biomineralization
Author :
Publisher :
Total Pages : 220
Release :
ISBN-10 : 0198508824
ISBN-13 : 9780198508823
Rating : 4/5 (24 Downloads)

Synopsis Biomineralization by : Stephen Mann

Mesocrystals and Nonclassical Crystallization

Mesocrystals and Nonclassical Crystallization
Author :
Publisher : John Wiley & Sons
Total Pages : 302
Release :
ISBN-10 : UOM:39015074062368
ISBN-13 :
Rating : 4/5 (68 Downloads)

Synopsis Mesocrystals and Nonclassical Crystallization by : Helmut Cöelfen

"This book gives an introduction to self-assembly, classical crystallization, colloidal crystals, and mesocrystals. - This book will be of value to scientists involved with crystallization, materials science, self-assembly, colloid science, nanosciences, biomineralization, and graduate students of material science."--Jacket.