Development and Characterisation of Calcium Phosphate Glasses and Glass-ceramics Containing Fluorine and Titanium
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Published: 2010
Total Pages: 90
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Published: 2010
Total Pages: 90
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DOWNLOAD EBOOKThere is ongoing research into calcium phosphate glasses as possible candidates for use in dental restoration and in the field of bone implants. This is due to the fact that calcium phosphate glasses have many useful properties such as bioactivity, biocompatibility, bioresorbability and non toxicity. However, on the other hand they are also known to fail catastrophically and therefore cannot be used in load bearing applications and are limited as coatings to metallic substrates. Calcium phosphate glasses with different types of oxides such as magnesium, [27-28, 30-34] sodium, [14, 36-40] fluorine [41-42] in the presence of titania have been used in research to investigate whether addition of these oxides can help improve the properties of the glasses. It has been shown that calcium phosphate glasses containing fluorine have shown to produce fluoroapatite which is beneficial as it is known to be one of the ways in order to improve chemical durability of calcium phosphate glass-ceramics. [41-42] In the present study, type A glass and glass-ceramics demonstrated the effect of TiO2 addition with reduction of calcium to phosphorus ratio and type B glass and glass-ceramics demonstrated the effect of TiO2 addition with constant calcium to phosphorus ratio on the structure of fluorine containing calcium phosphate glasses and glass-ceramics. The TiO2 addition in type A took place in 5 %, 15 % and 20 % molar content of TiO2 and in type B, TiO2 was added to glasses in 4.76 %, 11.11 %, 16.66 % and 20 % molar content of TiO2. FTIR, DSC, XRD, ESEM and TGA (performed only on amorphous glasses) were used to characterise the glasses and glass-ceramics produced. DSC and density measurements showed that when 15 mol % TiO2 was added in type A; it caused disruption in the glass network which was confirmed by a reduction in the Tg. When TiO2 was added into the glass in type B, there was a general increase in Tg observed which confirmed that TiO2 might strengthen the glass network. XRD re.
Author: François De Mestral
Publisher:
Published: 1986
Total Pages: 258
ISBN-13:
DOWNLOAD EBOOKAuthor: Basudeb Karmakar
Publisher: Butterworth-Heinemann
Published: 2017-06-08
Total Pages: 418
ISBN-13: 0128052074
DOWNLOAD EBOOKFunctional Glasses and Glass-Ceramics: Processing, Properties and Applications provides comprehensive coverage of the current state-of-the-art on a range of material synthesis. This work discusses the functional properties and applications of both oxide and non-oxide glasses and glass-ceramics. Part One provides an introduction to the basic concept of functional glasses and glass-ceramics, while Part Two describes the functional glasses and glass-ceramics of oxide systems, covering functionalization of glasses by 3d transition metal ion doping, 4f rare earth metal ion doping, crystallization, laser irradiation micro fabrication, incorporation of nanometals, the incorporation of semiconductor coatings, the functionalization for biomedical applications, solid oxide fuel cell (SOFC) sealants, and display devices, and from waste materials. Part Three describes functional glasses and glass-ceramics of non-oxide systems, covering functional chalcogenide and functional halide glasses, glass-ceramics, and functional bulk metallic glasses. The book contains future outlooks and exercises at the end of each chapter, and can be used as a reference for researchers and practitioners in the industry and those in post graduate studies. Provides a comprehensive text that explores the field of both functional glass and glass ceramics Presents an in-depth discussion on the definition of a functional glass Includes discussions of advanced processing, functional properties, and functional applications of a wide array of functional glasses and glass-ceramics Written using a systematic approach that can only be accomplished through an authored work
Author: Hans Bach
Publisher: Springer Science & Business Media
Published: 2013-06-29
Total Pages: 541
ISBN-13: 3662037467
DOWNLOAD EBOOKThe first book completely devoted to the subject, this volume describes the analysis of the composition and structure of glass and glass ceramics. Although conceived as a monograph, the individual chapters are written by leading Schott experts on the corresponding subjects.
Author: Jesus Ma. Rincon
Publisher: Springer Science & Business Media
Published: 2013-06-29
Total Pages: 247
ISBN-13: 3662038714
DOWNLOAD EBOOKThis monograph stems from lectures given during the summer course at the University of La Laguna. It includes the main characterization techniques useful nowadays for ceramics, glasses and glass-ceramics, reviews the new microscopes for characterizing materials, and gives an overview of inorganic materials such as zeolites.
Author: Akiko Obata
Publisher: Royal Society of Chemistry
Published: 2022-05-04
Total Pages: 297
ISBN-13: 1839161647
DOWNLOAD EBOOKInorganic 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.
Author: K. Annapurna
Publisher: Springer Nature
Published: 2022-11-29
Total Pages: 318
ISBN-13: 9811958211
DOWNLOAD EBOOKThis book presents various useful processing techniques and applications of glasses and glass-ceramics. It covers various topics such as introduction to glass, its properties, thermodynamics of glass, heat transfer in glass melts, color in glass and advanced characterization techniques to analyze structure of glasses and glass-ceramics along with functional glasses and glass ceramics for advanced applications. This book will be a useful reference for students, researchers, scientists and technologists working in the field of materials science, especially glass.
Author: Emad El-Meliegy
Publisher: Springer Science & Business Media
Published: 2011-12-02
Total Pages: 260
ISBN-13: 1461412285
DOWNLOAD EBOOKGlass ceramics are a special group of materials in which a base glass can be crystallized under carefully controlled conditions, which in turn determine the properties of the material. These materials offer a wide range of physical and mechanical properties combining the distinctive characteristics of sintered ceramics and glasses. This book provides readers with an interest in medical ceramics with the ability to start making their own glasses and glass ceramics, together with an understanding of the various factors that control the final properties of these medical and dental materials. In addition, the authors describe various industrial problems with current, clinically-used medical glass ceramics and discuss appropriate scientific solutions. Glasses and Glass Ceramics for Medical Applications will appeal to a broad audience of biomaterials scientists, ceramists, and bioengineers, particularly those with an interest in orthopedic and dental applications, as well as scientists and engineers involved in the manufacture of glasses, glazes, enamels, and other glass coatings for the medical materials industry. The book will also be of interest to undergraduate and graduate students in materials engineering and dentistry, and is suitable for use in courses on medical and dental materials.
Author: Sergey V. Dorozhkin
Publisher: CRC Press
Published: 2012-06-04
Total Pages: 863
ISBN-13: 9814364177
DOWNLOAD EBOOKDue to a great chemical similarity with the biological calcified tissues, many calcium orthophosphates possess remarkable biocompatibility and bioactivity. Materials scientists use this property extensively to construct artificial bone grafts that are either entirely made of or only surface-coated with the biologically relevant calcium orthophospha