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Author: Georgij Michajlovič Bartenev
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
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Book Description
Author: Georgij Michajlovič Bartenev
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
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Book Description
Author: Georgiĭ Mikhaĭlovich Bartenev
Publisher:
ISBN:
Category : Glass
Languages : en
Pages : 260
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Book Description
Author: Arun K. Varshneya
Publisher: Elsevier
ISBN: 0128162260
Category : Science
Languages : en
Pages : 756
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Book Description
Fundamentals of Inorganic Glasses, Third Edition, is a comprehensive reference on the field of glass science and engineering that covers numerous, significant advances. This new edition includes the most recent advances in glass physics and chemistry, also discussing groundbreaking applications of glassy materials. It is suitable for upper level glass science courses and professional glass scientists and engineers at industrial and government labs. Fundamental concepts, chapter-ending problem sets, an emphasis on key ideas, and timely notes on suggested readings are all included. The book provides the breadth required of a comprehensive reference, offering coverage of the composition, structure and properties of inorganic glasses. - Clearly develops fundamental concepts and the basics of glass science and glass chemistry - Provides a comprehensive discussion of the composition, structure and properties of inorganic glasses - Features a discussion of the emerging applications of glass, including applications in energy, environment, pharmaceuticals, and more - Concludes chapters with problem sets and suggested readings to facilitate self-study
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
Author: Mark Stephen Oliver
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 170
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Book Description
Hybrid organic-inorganic glasses are materials wherein organic and inorganic chemical components are intermixed and covalently bound at the molecular scale. This class of materials has great potential to enable and enhance a range of new technologies given their unique properties. To date, hybrid glasses have been used in a diverse range of applications including protective coatings, adhesion promoting films, ultra-low-k dielectrics, and optical waveguides. The successful integration of hybrid glasses requires that they possess sufficient mechanical properties to withstand often harsh processing and operating conditions. This dissertation presents results from several investigations of how molecular structure controls elastic and fracture properties of hybrid glasses. Two major sol-gel derived hybrid glass systems are discussed. The first is oxycarbosilane (OCS) glasses processed from small organosilane precursors. The second system is ZrOx/epoxysilane hybrids. For the OCS glasses, the primary focus of this work was to develop the capability to generate accurate molecular models of these materials and to simulate their mechanical properties using molecular dynamics as well as a novel fracture model that uses the mathematics of graph theory to predict the 3-D cohesive fracture path at the atomic scale. Using these computational tools, the impact of network connectivity on elastic stiffness and cohesive fracture energy has been elucidated. Also, the exceptionally high stiffness of OCS materials processed from 1,3,5-benzene precursors predicted by computational modeling is discussed. For the ZrOx/epoxysilane materials, linear elastic fracture mechanics experiments were done to characterize the fracture resistance of these glasses under monotonic, static, and cyclic loading conditions. The effects of glass composition, substrate composition, and silane crosslinking on the critical fracture energy were investigated. Additionally, plasticity-driven cyclic mechanical fatigue was observed, providing the first evidence of the importance of fatigue phenomena to hybrid glasses.
Author: Charles R. Kurkjian
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 674
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Book Description
Author: James E Shelby
Publisher: Royal Society of Chemistry
ISBN: 1782625119
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
This book provides a concise and inexpensive introduction for an undergraduate course in glass science and technology. The level of the book has deliberately been maintained at the introductory level to avoid confusion of the student by inclusion of more advanced material, and is unique in that its text is limited to the amount suitable for a one term course for students in materials science, ceramics or inorganic chemistry. The contents cover the fundamental topics of importance in glass science and technology, including glass formation, crystallization, phase separation and structure of glasses. Additional chapters discuss the most important properties of glasses, including discussion of physical, optical, electrical, chemical and mechanical properties. A final chapter provides an introduction to a number of methods used to form technical glasses, including glass sheet, bottles, insulation fibre, optical fibres and other common commercial products. In addition, the book contains discussion of the effects of phase separation and crystallization on the properties of glasses, which is neglected in other texts. Although intended primarily as a textbook, Introduction to Glass Science and Technology will also be invaluable to the engineer or scientist who desires more knowledge regarding the formation, properties and production of glass.
Author: Mark Stephen Oliver
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Hybrid organic-inorganic glasses are materials wherein organic and inorganic chemical components are intermixed and covalently bound at the molecular scale. This class of materials has great potential to enable and enhance a range of new technologies given their unique properties. To date, hybrid glasses have been used in a diverse range of applications including protective coatings, adhesion promoting films, ultra-low-k dielectrics, and optical waveguides. The successful integration of hybrid glasses requires that they possess sufficient mechanical properties to withstand often harsh processing and operating conditions. This dissertation presents results from several investigations of how molecular structure controls elastic and fracture properties of hybrid glasses. Two major sol-gel derived hybrid glass systems are discussed. The first is oxycarbosilane (OCS) glasses processed from small organosilane precursors. The second system is ZrOx/epoxysilane hybrids. For the OCS glasses, the primary focus of this work was to develop the capability to generate accurate molecular models of these materials and to simulate their mechanical properties using molecular dynamics as well as a novel fracture model that uses the mathematics of graph theory to predict the 3-D cohesive fracture path at the atomic scale. Using these computational tools, the impact of network connectivity on elastic stiffness and cohesive fracture energy has been elucidated. Also, the exceptionally high stiffness of OCS materials processed from 1,3,5-benzene precursors predicted by computational modeling is discussed. For the ZrOx/epoxysilane materials, linear elastic fracture mechanics experiments were done to characterize the fracture resistance of these glasses under monotonic, static, and cyclic loading conditions. The effects of glass composition, substrate composition, and silane crosslinking on the critical fracture energy were investigated. Additionally, plasticity-driven cyclic mechanical fatigue was observed, providing the first evidence of the importance of fatigue phenomena to hybrid glasses.
Author: Heimo Ylänen
Publisher: Woodhead Publishing
ISBN: 0081009372
Category : Technology & Engineering
Languages : en
Pages : 428
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Book Description
Bioactive Glasses: Materials, Properties and Applications, Second Edition provides revised, expanded and updated content on the current status of this unique material, including its properties, technologies and applications. The book is suitable for those active in the biomaterials and bioengineering field, and includes eight new chapters that cover material types, computational modeling, coatings and applications. Chapters deal with the materials and mechanical properties of bioactive glass and the applications of bioactive glasses, covering their uses in wound healing, maxillofacial surgery and bone tissue engineering, among other topics. With its distinguished editor and expert team of international contributors, the book is an invaluable reference for researchers and scientists in the field of biomaterials, both in academia and industry. - Provides a detailed review of bioactive glasses, their properties, technologies and applications - Comprehensively covers the materials and mechanical properties of bioactive glass and their further applications, including wound healing, maxillofacial surgery and bone tissue engineering - Suitable for those active in the biomaterials and bioengineering field
Author: Yusuke Matsuda
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Silicon carbide hybrid glasses are a class of hybrid organic-inorganic glasses which contain inorganic network bonds and organic monovalent bonds. They exhibit not only excellent thermal and chemical stability, but also unique multi-functionality that is tunable by controlling chemical composition, the number of monovalent bonds, and additional porosity. Perhaps the most significant advantage of silicon carbide hybrid glasses is that they are processed without moisture-sensitive bonds, and therefore they are in theory insensitive to "moisture-assisted cracking, " which significantly deteriorates the mechanical integrity of moisture-sensitive materials. These attractive properties make silicon carbide hybrid glasses promising candidates for emerging nanoscience and energy applications that require protection from moisture and harsh environments. However, the successful integration and application of silicon carbide hybrid glasses are limited by their fragile nature due to the reduced network connectivity and lack of plasticity of the glasses. The central theme of this dissertation is to investigate the fundamental connection between the molecular structure and resulting mechanical properties of silicon carbide hybrid glasses to obtain design guides to improve their mechanical properties, which enables the integration and application of the glasses. The crucial role of glass network connectivity and plasticity in the mechanical properties of the silicon carbide hybrid glasses was first demonstrated. It was shown that the cohesive fracture energy of the silicon carbide hybrid glasses can be dramatically improved by conferring plasticity to the glasses through the incorporation of carbon chains into the molecular structure without sacrificing their excellent thermal and chemical stability. The silicon carbide hybrid glasses with plasticity were also used as toughening layers to dramatically improve adhesion in nanoscale thin-film structures. It was then demonstrated that silicon carbide hybrid glasses exhibited a low sensitivity to moisture-assisted cracking even though they were processed without moisture-sensitive bonds. This low sensitivity was due to the formation of Si--O--Si bonds at Si--Hx bonds in the glasses after the deposition process. A new atomistic kinetic fracture model that incorporates the role of moisture-insensitive bonds was developed to quantitatively predict the low sensitivity and crack growth velocity of the glasses. The developed atomistic kinetic fracture model was further employed to explore how the sensitivity of the glasses to moisture-assisted cracking changed with varying Si--O--Si bonds. Finally, the applicability of a new silicon carbide hybrid glass to an industrial application was explored. This new glass exhibited mechanical properties superior to traditional silica-based hybrid glasses and insensitivity to moisture-assisted cracking.
