Download or read book Dissolution Behavior of Alkali Borate Glasses written by Jessica Dawn Lowry and published by . This book was released on 2002 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Borate Glasses written by L. D. Pye and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron Oxide plays a key role in numerous glasses of high technological importance, yet its role in glass structure is far from clear. Indeed, in recent years there have been serious chal lenges to previous structure concepts for both crystalline and glassy borates. These challenges were sufficient to warrant a re examination of the structure of borate glasses using the most pow erful tools currently available. To provide a suitable forum for this undertaking, a four-day conference on "Boron in Glass and Glass Ceramics" was convened at Alfred University, June 3-8, 1977 to review the best scientific thinking on structure and to debate conflicting views and discuss properties and applications of borate glasses. This conference was also the first in a New University series on Glass Science to be rotated among Alfred University, The Pensyl vania State University, Rensselaer Polytechnic Institute, and the University of Missouri-Rolla. The present volume represents the proceedings of the first conference in this series. The volume begins with a review of the remarkable contribution of Jan Krogh-Moe to the understanding of the structure of Borate glasses. This review, authored by Professor N. J. Kreidl, concludes by dedicating the proceedings of this conference as a Krogh-Moe Fest schrift. The volume continues with a historical review by D. L. Griscom, originally prepared for circulation to the contributors prior to the conference. An Epilogue to the opening chapter brings the survey up-to-date in light of the conference papers.
Download or read book The Effect of Composition on the Viscosity Crystallization and Dissolution of Simple Borate Glasses and Compositional Design of Borate Based Bioactive Glasses written by Kathryn Lynn Goetschius and published by . This book was released on 2014 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Borate glasses have recently been developed for a variety of medical applications, but much less is known about their structures and properties than more common silicate glasses. Melt properties and crystallization tendency for compositions in the Na2O-CaO-B2O3 system were characterized using differential thermal analysis and viscosity measurements. Characteristic viscosity (isokom) temperatures varied with the ratio between the modifier content (Na2O+CaO) and B2O3, particularly at lower temperatures, consistent with the changes in the relative concentrations of tetrahedral borons in the glass structure. Similar glasses were used to study dissolution processes in water. These alkali-alkaline earth glasses dissolve congruently and follow linear dissolution kinetics. The dissolution rates were dependent on the glass structure, with slower rates associated with greater fractions of four-coordinated boron. For glasses with a fixed alkaline earth identity, the dissolution rates increased in the order Li
Download or read book Effect of Dissolved Water on Physical Properties of Silver Borate Glasses written by E. Richard Reynolds and published by . This book was released on 1974 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phosphate and Borate Bioactive Glasses written by Akiko Obata and published by Royal Society of Chemistry. This book was released on 2022-05-04 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inorganic glasses are successfully used in the biomedical field, in particular degradable glasses have found applications in tissue engineering, bone regeneration and tooth remineralisation. Silicate glasses are the most commonly used ones but phosphate and borate glasses are attracting more and more interest owing to their special properties, differing from those of silicate bio-glasses. Phosphate and borate glasses thus open up potential routes for new therapeutic applications. This book focuses on these emerging materials. Bridging the phosphate and borate glasses communities, this book provides a fundamental treatment of atomic structure and physicochemical properties before highlighting their current and potential future applications. Phosphate and borate glasses not only feature a broader range of glass formation than silicate glasses. Their ability to completely dissolve in water with the solubility varying over orders of magnitude with compositional changes, makes them exciting materials for delivering therapeutic agents into the human body. Biomaterials scientists working in glasses, hard tissue engineering and regenerative medicine will find this a must-have book to own, alongside their more traditional silicate glass tomes.
Download or read book The Aqueous Chemistry of Oxides written by Bruce C. Bunker and published by Oxford University Press. This book was released on 2016-02-02 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Aqueous Chemistry of Oxides is a single-volume text that encapsulates all of the critical issues associated with how oxide materials interact with aqueous solutions. It serves as a central reference for academics working with oxides in the contexts of geology, various types of inorganic chemistry, and materials science. The text also has utility for professionals working with industrial applications in which oxides are either prepared or must perform in aqueous environments. The volume is organized into five key sections. Part One features two introductory chapters, intended to introduce the mutual interests of engineers, chemists, geologists, and industrial scientists in the physical and chemical properties of oxide materials. Part Two provides the essential and fundamental principles that are critical to understanding most of the major reactions between water and oxides. Part Three deals with the synthesis of oxide materials in aqueous media. Part Four deals with oxide-water reactions and their environmental and technological impacts, and Part Five is devoted to other types of relevant reactions. The Aqueous Chemistry of Oxides is the first book that provides a comprehensive summary of all of the critical reactions between oxides and water in a single volume. As such, it ties together a wide range of existing books and literature into a central location that provides a key reference for understanding and accessing a broad range of more specialized topics. The book contain over 300 figures and tables.
Download or read book Rheological Properties of Alkali Borate Glasses written by Theodorus Johannes Maria Visser and published by . This book was released on 1971 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On the Structure of Boron Oxide and Alkali Borate Glasses written by Jan Krogh-Moe and published by . This book was released on 1959 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissolution of Borate Glasses and Precipitation of Phosphate Compounds written by Jaime Lynn George and published by . This book was released on 2015 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Borate glasses have been developed for biomedical applications such as scaffolds for soft tissue and bone repair. The dissolution processes of borate glasses in phosphate-containing aqueous solutions were studied by [mu]-Raman spectroscopy which provided information about the types and concentrations of borate species released into the solution as a function of time and characterized the formation of calcium phosphate reaction products on the glass surface. Boric acid molecules (H3BO3) and borate anions (B(OH)4−) can be detected in solution and their relative concentrations depend on the solution pH. Static and dynamic single-pass flow-through experiments were employed to study the dissolution kinetics of a borate bioactive glass 13-93B3 in water, simulated body fluid (SBF), and other solutions. As the glasses react, B-, Ca-, Na-, K-, Mg-, and P-species were released from the glass and a magnesium-containing amorphous calcium phosphate (ACP) or hydroxyapatite (HAP) layer formed on the surface of the glass. The formation of crystalline hydroxyapatite was favored with faster flow rates, longer reaction times, and increased phosphate concentration in solution. Under static conditions, the dissolution rates are initially described by a reaction-controlled model (linear kinetics), but after the glass is ~25-30% reacted, a diffusion-controlled model (parabolic kinetics) better describes the dissolution rates. The change in reaction mechanism is attributed to the diffusion of species from the glass through the ACP layer. The activation energy for the reaction-controlled process is 41.1±0.6 kJ/mol, whereas the activation energy for the diffusion process is 32.3±0.1 kJ/mol. For the SPFT experiments, glasses dissolved faster under faster flow rates and smaller glass volumes. The ion release rate was calculated and found to range from 1.7x10−5 g/m2/s for slow flow rates to 1.1x10−3 g/m2/s for lower glass volumes."--Abstract, page iv.
Download or read book Observations of Phase Separation in Alkali Borate Glasses written by Brian F. Loncto and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Borate Glasses Crystals Melts written by Yanko B. Dimitriev and published by . This book was released on 2001 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corrosion of Ceramic Materials written by Ronald A. McCauley and published by CRC Press. This book was released on 2016-04-19 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the many changes in the field since the publication of the second edition, Corrosion of Ceramic Materials, Third Edition incorporates more information on bioceramics, including nanomaterials, as well as the weathering of construction materials. Adhering to the original plan of classification by chemistry, this edition reorganizes the top
Download or read book Chemistry of Glasses written by A. Paul and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The preface ... either serves for the explanation of the purpose of the book, or for justification and as an answer to critics'. Lermontov This book is based mainly on the lectures on the Chemistry of Glasses which I gave at the University of Sheffield to the final year honours and postgraduate students of Glass Technology and Materials Science. Most books reflect the interests and enthusiasm of their authors, and the present one is no exception. The chemistry of glass is a rapidly developing field because the frontiers of advanced chemistry and advanced physics are merging together and con sequently this book will soon require considerable amplification and modification. However, my experience in teaching the chemistry of glasses for more than a decade has shown me that there is much need for a good text-book on the subject. This book is therefore intended to be a stop-gap which, until it receives that new revision. may serve as a useful reference work for students and research workers alike. I gratefully acknowledge the influence on my thinking of many of those colleagues at Sheffield with whom I have been in contact during the past twenty years or so. In addition to these personal influences, other published works have had considerable influence in modifying my approach. especially Cotton and Wilkinson's Advanced inorganic Chemistry. Dr Peter James helped me in writing Chapter 2, and Professor Peter McMillan not only read the whole manuscript but also made a number of most helpful suggestions.
Download or read book Chemistry of Glasses written by A. Paul and published by Springer Science & Business Media. This book was released on 1989-11-30 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry of glass is a rapidly developing field brought about by the merging together of advanced chemistry and advanced physics. While acting as a text book on the subject, this work may also serve as a useful reference source for students and research workers alike.
Download or read book Corrosion of Ceramic and Composite Materials Second Edition written by Ronald A. McCauley and published by CRC Press. This book was released on 2004-06-23 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion of Ceramic and Composite Materials, Second Edition is a primary source of guidance for the assessment, interpretation, and inhibition of corrosion phenomena. This book discusses all aspects of corrosion of ceramics, including environments, mechanisms, and materials, and the means to minimize or eliminate corrosion. The author compiles key findings and literature highlights from nearly a decade of scientific advancement, covering emerging techniques in corrosion analysis, characterization, and prediction. He provides at-a-glance coverage of national and international testing procedures for the evaluation of materials stability. The book covers the fundamentals of corrosion by gases, liquids, and solids of several ceramic materials including crystalline materials, glasses, composites, bioceramics, and advanced ceramics. It also discusses property/corrosion relationships and testing. The book collects a generous number of models, figures, and studies illustrating techniques to minimize and reduce the effects of various mechanisms contributing to the corrosion of civil, aerospace, and military structures. The second edition includes a review of all the current literature since publication of the first edition, an additional chapter on composites, and major sections added on bioceramics and weathering of construction materials. Corrosion of Ceramic and Composite Materials, Second Edition explains existing corrosion problems and offers an excellent guide to the design and development of corrosion-resistant structures.
Download or read book Properties of Glass Forming Melts written by David Pye and published by CRC Press. This book was released on 2005-05-12 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art information concerning properties and processes involved in glass melts. Based upon contributions by renowned authors and scientists working with glass melt systems, Properties of Glass-Forming Melts is an excellent compilation of the current knowledge on property data, mechanisms, measurement techniques, and str
Download or read book Borate Glasses written by Lenwood D. Pye and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
