Investigation of Microgravity Grown Organic Crystals by Diffusion Techniques Over the Course of Thirty-one Years

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Investigation of Microgravity Grown Organic Crystals by Diffusion Techniques Over the Course of Thirty-one Years by : Ashley Renee Wilkinson

Download or read book Investigation of Microgravity Grown Organic Crystals by Diffusion Techniques Over the Course of Thirty-one Years written by Ashley Renee Wilkinson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The effect of microgravity on crystallization experiments has been a topic of interest over the past fifty years. The first microgravity crystallization experiments have been dated back to the early 1970s, and since then hundreds of crystals have been grown in microgravity. Crystallization experiments have been conducted on multiple flights and a variety of spacecraft, using an assortment of techniques, and funded by several different countries. Scientists have been and continue to examine how macromolecular crystals grow in microgravity and how the structures determined from crystals grown in microgravity compare to the structures determined from Earth grown crystals. Parameters such as size, uniformity, mosaicity and resolution limit can give the scientists insight into whether or not there are marked improvements in crystals. The ability to grow high quality crystals can lead to many developments in the electronics, healthcare and pharmaceuticals, and metal industries along with a variety of areas of research. This study is an analysis of publicly available data on organic macromolecular crystals grown by diffusion techniques over a thirty-one year period of time (1988-2019). The hypothesis is that experimental techniques and experience in microgravity crystallization have provided improved crystal growth throughout the analysis time period"--Leaf 3.

On the Diffusion Method of Crystal Growth

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ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis On the Diffusion Method of Crystal Growth by : Ödön Lendvay

Download or read book On the Diffusion Method of Crystal Growth written by Ödön Lendvay and published by . This book was released on 1969 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The simplest technical method for producing crystals of poorly soluble materials is diffusion growth. Through Diffusion growth nucleation processes may be limited or extended to chosen extent. The location and time of initiation for nucleation are directly calculable if the critical supersaturation or solubility product is known. The modification of nucleation time, duration, speed, time expansion, or contraction of extent may be achieved by simple methods. By the selection of experimental conditions different size distribution crystalline precipitates or macrocrystals may be produced. The latter may reach 1 cm size if system parameters are chosen correctly. The maximum dimensions of crystals produced are determined by the relationship of speed, nucleation, and growth. Largest dimensions through growth are usually exhibited by dendrites, twins, plain crystals, and needles. The so-called space crystals (where all three dimensions of the crystal are nearly equal) are generally smaller than the previous ones. The method has increased importance in cases where usual crystal growth methods may not be employed due ot the characteristics of the crystal to be produced.

Handbook of Crystal Growth

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Publisher : Elsevier
ISBN 13 : 0444633065
Total Pages : 1420 pages
Book Rating : 4.4/5 (446 download)

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Book Synopsis Handbook of Crystal Growth by : Peter Rudolph

Download or read book Handbook of Crystal Growth written by Peter Rudolph and published by Elsevier. This book was released on 2014-11-04 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol 2A: Basic TechnologiesHandbook of Crystal Growth, Second Edition Volume IIA (Basic Technologies) presents basic growth technologies and modern crystal cutting methods. Particularly, the methodical fundamentals and development of technology in the field of bulk crystallization on both industrial and research scales are explored. After an introductory chapter on the formation of minerals, ruling historically the basic crystal formation parameters, advanced basic technologies from melt, solution, and vapour being applied for research and production of the today most important materials, like silicon, semiconductor compounds and oxides are presented in detail. The interdisciplinary and general importance of crystal growth for human live are illustrated.Vol 2B: Growth Mechanisms and DynamicsHandbook of Crystal Growth, Second Edition Volume IIB (Growth Mechanisms and Dynamics) deals with characteristic mechanisms and dynamics accompanying each bulk crystal growth method discussed in Volume IIA. Before the atoms or molecules pass over from a position in the fluid medium (gas, melt or solution) to their place in the crystalline face they must be transported in the fluid over macroscopic distances by diffusion, buoyancy-driven convection, surface-tension-driven convection, and forced convection (rotation, acceleration, vibration, magnetic mixing). Further, the heat of fusion and the part carried by the species on their way to the crystal by conductive and convective transport must be dissipated in the solid phase by well-organized thermal conduction and radiation to maintain a stable propagating interface. Additionally, segregation and capillary phenomena play a decisional role for chemical composition and crystal shaping, respectively. Today, the increase of high-quality crystal yield, its size enlargement and reproducibility are imperative conditions to match the strong economy.Volume 2A - Presents the status and future of Czochralski and float zone growth of dislocation-free silicon - Examines directional solidification of silicon ingots for photovoltaics, vertical gradient freeze of GaAs, CdTe for HF electronics and IR imaging as well as antiferromagnetic compounds and super alloys for turbine blades - Focuses on growth of dielectric and conducting oxide crystals for lasers and non-linear optics - Topics on hydrothermal, flux and vapour phase growth of III-nitrides, silicon carbide and diamond are explored Volume 2B - Explores capillarity control of the crystal shape at the growth from the melt - Highlights modeling of heat and mass transport dynamics - Discusses control of convective melt processes by magnetic fields and vibration measures - Includes imperative information on the segregation phenomenon and validation of compositional homogeneity - Examines crystal defect generation mechanisms and their controllability - Illustrates proper automation modes for ensuring constant crystal growth process - Exhibits fundamentals of solution growth, gel growth of protein crystals, growth of superconductor materials and mass crystallization for food and pharmaceutical industries

Springer Handbook of Crystal Growth

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Publisher : Springer
ISBN 13 : 9783662518144
Total Pages : 1818 pages
Book Rating : 4.5/5 (181 download)

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Book Synopsis Springer Handbook of Crystal Growth by : Govindhan Dhanaraj

Download or read book Springer Handbook of Crystal Growth written by Govindhan Dhanaraj and published by Springer. This book was released on 2016-05-15 with total page 1818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the years, many successful attempts have been chapters in this part describe the well-known processes made to describe the art and science of crystal growth, such as Czochralski, Kyropoulos, Bridgman, and o- and many review articles, monographs, symposium v- ing zone, and focus speci cally on recent advances in umes, and handbooks have been published to present improving these methodologies such as application of comprehensive reviews of the advances made in this magnetic elds, orientation of the growth axis, intro- eld. These publications are testament to the grow- duction of a pedestal, and shaped growth. They also ing interest in both bulk and thin- lm crystals because cover a wide range of materials from silicon and III–V of their electronic, optical, mechanical, microstructural, compounds to oxides and uorides. and other properties, and their diverse scienti c and The third part, Part C of the book, focuses on - technological applications. Indeed, most modern ad- lution growth. The various aspects of hydrothermal vances in semiconductor and optical devices would growth are discussed in two chapters, while three other not have been possible without the development of chapters present an overview of the nonlinear and laser many elemental, binary, ternary, and other compound crystals, KTP and KDP. The knowledge on the effect of crystals of varying properties and large sizes. The gravity on solution growth is presented through a c- literature devoted to basic understanding of growth parison of growth on Earth versus in a microgravity mechanisms, defect formation, and growth processes environment.

Crystal Growth

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Publisher : Springer Science & Business Media
ISBN 13 : 1475748965
Total Pages : 198 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Crystal Growth by : C. H. L. Goodman

Download or read book Crystal Growth written by C. H. L. Goodman and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The science and art of crystal growing continue to flourish; even with increasing understanding of the science, "feel" and skill continue to play their vital part, as was so clearly evidenced at the recent Boston International Conference on Crystal Growth. The aim of this volume, the same as that of the first, is to try to improve understanding by providing detailed discussions of crystal growth techniques and problems that arise with them. The published paper in the specialized literature is too limited a vehicle, by convention and by editorial pressure on length, to discuss matters in detail, yet it is in the small details born of experience that vital information can often lie concealed. A major aim of this series, therefore, has been to encourage contributors to describe rather fully what has been achieved in their special fields. The next volume of this series is now well underway and plans for Volume 4 are advanced. If you, the reader, feel that some important aspect of crystal growth is being unjustifiably neglected, perhaps you should consider offering a contribution! And even if you do not wish to do that, please do offer criticism-preferably constructive. I hope that the present volume will prove as useful and interesting to crystal growers as apparently did the first volume of the series; certainly the warm commendations that that volume has elicited were a great encouragement for the present work. Finally it is a pleasure to thank Standard Telecommunication Laboratories for its continuing support.

Neutron Protein Crystallography

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Publisher : Oxford University Press
ISBN 13 : 0199578869
Total Pages : 250 pages
Book Rating : 4.1/5 (995 download)

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Book Synopsis Neutron Protein Crystallography by : Nobuo Niimura

Download or read book Neutron Protein Crystallography written by Nobuo Niimura and published by Oxford University Press. This book was released on 2011-02-17 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the first books dedicated to the emerging field of neutron protein crystallography (NPC). It covers all of the practical aspects of NPC and demonstrates how NPC can explore protein features such as hydrogen bonds, protonation and deprotonation of amino acid residues, and hydration structures.

Shaped Crystals

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Publisher : Springer Science & Business Media
ISBN 13 : 354071295X
Total Pages : 336 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Shaped Crystals by : Tsuguo Fukuda

Download or read book Shaped Crystals written by Tsuguo Fukuda and published by Springer Science & Business Media. This book was released on 2007-08-10 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume offers an overview of the growth of shaped crystals (oxides, fluorides, etc.) by the micro-pulling-down technique. Both melt and solution (flux) growth are considered. The advantages and disadvantages of the method are discussed in detail and compared with related crystal-growth processes. The authors attempt to give a practical introduction to this technique, thereby also explaining how its application can help to solve problems commonly encountered in other melt-growth methods.

New Topics in Crystal Growth Research

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Publisher : Nova Publishers
ISBN 13 : 9781594548376
Total Pages : 202 pages
Book Rating : 4.5/5 (483 download)

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Book Synopsis New Topics in Crystal Growth Research by : George V. Karas

Download or read book New Topics in Crystal Growth Research written by George V. Karas and published by Nova Publishers. This book was released on 2006 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental and theoretical aspects of crystal growth and its applications, e.g. in devices, are within the scope of these new books . Experimental and theoretical contributions are included in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallisation in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapour deposition, growth of III-V and II-VI and other semiconductors; characterisation of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multi-layer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials.

Crystal Growth Under Applied Fields

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ISBN 13 : 9788178952611
Total Pages : 214 pages
Book Rating : 4.9/5 (526 download)

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Book Synopsis Crystal Growth Under Applied Fields by : Sadik Dost

Download or read book Crystal Growth Under Applied Fields written by Sadik Dost and published by . This book was released on 2007-01-01 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: In crystal growth from the liquid phase, convective flows occurring in the melt or solution play a significant role in many aspects of the growth processes. This includes concentration distribution in the liquid phase, crystal composition, microstructures in the grown crystals, and the shape and evolution of the melting/growing interfaces. All these parameters affect the quality of grown crystals. To this end, convection in the liquid phase must be controlled. The main option to achieve this goal in crystal growth is the use of applied fields such as magnetic and electric fields, crucible rotation, and a microgravity environment. The use of microgravity fields was covered in one of the previous volumes of Research Signpost. The present volume mainly focuses on the melt and solution growth of semiconductors under the effects of applied electric and magnetic fields and crucible rotation. The book consists of two main groups of chapters. The first group is on the melt growth techniques of Czhochralski and Float-zone, and the second part focuses on the solution growth techniques of Liquid Phase Electroepitaxy, Liquid Phase Diffusion and the Travelling Heater Method. In each group, chapters are presented in the alphabetical order with respect to the first author. The contributed chapters cover recent developments in these techniques under applied fields such as applied magnetic and electric fields, crucible rotation and reduced gravity conditions. We hope that this review book will serve to researchers and graduate students in these fields as a valuable source in conducting their research. We would like to express our deepest appreciation to the contributors for their excellent contributions, and the time and effort put into these chapters. We would also like to thank the Transworld Research Network for providing this opportunity for us to disseminate our recent findings in this important field of research. Finally our thanks go to Sema Dost for her organizational help in the preparation of the volume.

Crystal Growth - From Fundamentals to Technology

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Publisher : Elsevier
ISBN 13 : 0080473075
Total Pages : 434 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Crystal Growth - From Fundamentals to Technology by : Georg Müller

Download or read book Crystal Growth - From Fundamentals to Technology written by Georg Müller and published by Elsevier. This book was released on 2004-07-07 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains 5 chapters with 19 contributions form internationally well acknowledged experts in various fields of crystal growth. The topics are ranging from fundamentals (thermodynamic of epitaxy growth, kinetics, morphology, modeling) to new crystal materials (carbon nanocrystals and nanotubes, biological crystals), to technology (Silicon Czochralski growth, oxide growth, III-IV epitaxy) and characterization (point defects, X-ray imaging, in-situ STM). It covers the treatment of bulk growth as well as epitaxy by anorganic and organic materials.

Advances in Crystal Growth Research

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Publisher : Elsevier Science Limited
ISBN 13 : 0444507477
Total Pages : 419 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis Advances in Crystal Growth Research by : Kiyotaka Satō

Download or read book Advances in Crystal Growth Research written by Kiyotaka Satō and published by Elsevier Science Limited. This book was released on 2001-01-01 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to provide a timely collection that highlights advances in current research of crystal growth ranging from fundamental aspects to current applications involving a wide range of materials. This book is published on the basis of lecture texts of the 11th International Summer School on Crystal Growth (ISSCG-11) to be held at Doshisha Retreat Center in Shiga Prefecture Japan, on July 24-29, 2001. This school is always associated with the International Conference of Crystal Growth (ICCG) series that have been held every three years since 1973; thus this school continues the tradition of the past 10 schools of crystal growth.

Crystal Growth

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ISBN 13 : 9781475712735
Total Pages : 312 pages
Book Rating : 4.7/5 (127 download)

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Book Synopsis Crystal Growth by : C. H. L. Goodman

Download or read book Crystal Growth written by C. H. L. Goodman and published by . This book was released on 2014-09-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

International Aerospace Abstracts

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Publisher :
ISBN 13 :
Total Pages : 974 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis International Aerospace Abstracts by :

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:

50 Years Progress in Crystal Growth

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Publisher : Elsevier Science Limited
ISBN 13 : 9780444516503
Total Pages : 240 pages
Book Rating : 4.5/5 (165 download)

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Book Synopsis 50 Years Progress in Crystal Growth by : Robert S. Feigelson

Download or read book 50 Years Progress in Crystal Growth written by Robert S. Feigelson and published by Elsevier Science Limited. This book was released on 2004 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is no question that the field of solid state electronics, which essentially began with work at Bell laboratories just after World War II, has had a profound impact on today's Society. What is not nearly so widely known is that advances in the art and science of crystal growth underpin this technology. Single crystals, once valued only for their beauty, are now found, in one form or another in most electronic, optoelectronic and numerous optical devices. These devices, in turn, have permeated almost every home and village throughout the world. In fact it is hard to imagine what our electronics industry, much less our entire civilization, would have been like if crystal growth scientists and engineers were unable to produce the large, defect free crystals required by device designers. This book brings together two sets of related articles describing advances made in crystal growth science and technology since World War II. One set is from the proceedings of a Symposium held in August 2002 to celebrate 50 years of progress in the field of crystal growth. The second contains articles previously published in the newsletter of the American Association for Crystal Growth in a series called "Milestones in Crystal Growth". The first section of this book contains several articles which describe some of the early history of crystal growth prior to the electronics revolution, and upon which modern crystal growth science and technology is based. This is followed by a special article by Prof. Sunagawa which provides some insight into how the successful Japanese crystal growth industry developed. The next section deals with crystal growth fundamentals including concepts of solute distribution, interface kinetics, constitutional supercooling, morphological stability and the growth of dendrites. The following section describes the growth of crystals from melts and solutions, while the final part involves thin film growth by MBE and OMVPE. These articles were written by some of the most famous theorists and crystal growers working in the field. They will provide future research workers with valuable insight into how these pioneering discoveries were made, and show how their own research and future devices will be based upon these developments. · Articles written by some of the most famous theorists and crystal growers working in the field · Valuable insight into how pioneering discoveries were made. · Show how their own research and future devices will be based upon these developments

Field Guide to Crystal Growth

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Publisher :
ISBN 13 : 9781510617155
Total Pages : pages
Book Rating : 4.6/5 (171 download)

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Book Synopsis Field Guide to Crystal Growth by : A. K. Batra

Download or read book Field Guide to Crystal Growth written by A. K. Batra and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Crystal growth is the art and science of growing crystals to facilitate high-technology applications in lasers, semiconducting devices, computers, magnetic and optical devices, optical processors, and pharmaceuticals, among others. This Field Guide examines the basic phenomena and techniques of growing bulk single crystals from solution, melt, and vapors. Some techniques for growth in the microgravity environment of space are also addressed. Other topics include how to choose the right crystallization method (concentration gradient or thermal gradient) based on the physical and chemical properties of the system, and the best solvents, agents, and temperatures to produce high-quality crystals"--

Direct Observation of Crystal Growth from Solution Using Optical Investigation of a Growing Crystal Face

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Publisher : Independently Published
ISBN 13 : 9781792677403
Total Pages : 40 pages
Book Rating : 4.6/5 (774 download)

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Book Synopsis Direct Observation of Crystal Growth from Solution Using Optical Investigation of a Growing Crystal Face by : National Aeronautics and Space Adm Nasa

Download or read book Direct Observation of Crystal Growth from Solution Using Optical Investigation of a Growing Crystal Face written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first technical report for the period 1 Jan. 1993 till 31 Dec. 1993 for the research entitled, 'Direct observation of crystal growth from solution using Optical Investigation of a growing crystal Face' is presented. The work on the project did not start till 1 June 1993 due to the non-availability of the required personnel. The progress of the work during the period 1 June 1993 till the end of 1993 is described. Significant progress was made for testing various optical diagnostic techniques for monitoring crystal solution. Some of the techniques that are being tested are: heterodyne detection technique, in which changes in phase are measured as a interferometric function of time/crystal growth; a conventional technique, in which a fringe brightness is measured as a function of crystal growth/time; and a Mach-Zehnder interferometric technique in which a fringe brightness is measured as a function of time to obtain information on concentration changes. During the second year it will be decided to incorporate the best interferometric technique along with the ellipsometric technique, to obtain real time in-situ growth rate measurements. A laboratory mock-up of the first two techniques were made and tested. Lal, Ravindra NASA-CR-195141, NAS 1.26:195141 NAG3-1429...

Studies on Crystal Growth Under Microgravity

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Publisher :
ISBN 13 : 9788130800257
Total Pages : 186 pages
Book Rating : 4.8/5 (2 download)

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Book Synopsis Studies on Crystal Growth Under Microgravity by : Yasuhiro Hayakawa

Download or read book Studies on Crystal Growth Under Microgravity written by Yasuhiro Hayakawa and published by . This book was released on 2005 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: