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Author : Agaram S. Abhiraman
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (257 download)
Download or read book Formation, Structure, and Properties of Boron Nitride Fibers from Polymer Precursors written by Agaram S. Abhiraman and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (227 download)
Download or read book Formation, Structure and Properties of Boron Nitride Fibers from Polymer Precursors written by and published by . This book was released on 1992 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a study of possible polymer precursor-based routes to oriented boron nitride fibers, with emphasis on the formation of continuous polyborate gel fibers and subsequent nitridation. Results from preliminary investigations of polyborazylene, polyborazine and decaborane-diamine as precursors for boron nitride fibers are also included. Formation, via a sol-gel route, of a polyborate gel fiber containing no metal counter ion is a major accomplishment of this research. Incorporation in the precursor of rheological aids that are fugitive during subsequent pyrolysis/nitridation is seen to be advantageous in the formation of processable polyborate fibers. Whether suitable schemes exist for generating high orientation in the trial boron nitride fiber remains an unanswered question with all the precursors. Nonoxide precursors suffer, in addition, due to their high cost and chemical instabilities prior to their conversion to BN fibers.
Author :
Publisher :
ISBN 13 :
Total Pages : 1148 pages
Book Rating : 4.F/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1294 pages
Book Rating : 4.E/5 ( download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1984 with total page 1294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David R. Salem
Publisher : Carl Hanser Verlag GmbH Co KG
ISBN 13 : 3446456805
Total Pages : 601 pages
Book Rating : 4.4/5 (464 download)
Download or read book Structure Formation in Polymeric Fibers written by David R. Salem and published by Carl Hanser Verlag GmbH Co KG. This book was released on 2018-09-10 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure Formation in Polymeric Fibers presents a comprehensive and critical review of the science of fiber formation, with special emphasis on the evolution of microstructure and its relationship to process conditions and molecular properties. The thorough discussion of the structure and properties of most types of polymeric fibers (rigid rod, flexible chain, polymer blends, and copolymers) and the different routes to fiber formation will provide the understanding necessary for solving product and process development problems, and for enhancing productivity and product performance. The book will be a primary resource for all scientists and engineers involved in the research and practice of fiber formation and to students taking courses in polymer physics, polymer engineering, fiber science, and chemical engineering. It should also be of value to those interested in the general phenomena of polymer deformation, orientation, and structure development. Contents · Variations on a Theme of Uniaxial Orientation · Structure Formation During Melt Spinning · Advances in the Control of Spinline Dynamics for Enhanced Properties · Structure Formation During Drawing of Flexible Chain Polymers · Basic Aspects of Solution(Gel)-Spinning and Ultra-Drawing of PE-UHMW · Electrospinning and the Formation of Nanofibers · Fibers from Liquid Crystalline Polymers · Solvent Spun Cellulose Fibers · Carbon Fibers · Fibers from Electrically Conductive Polymers · Fibers from Polymer Blends and Copolymers · Thermomechanical Processing: Structure and Properties · Microstructure Characterization · Fiber Formation and the Science of Complexity
Author : Kalim Deshmukh
Publisher : Elsevier
ISBN 13 : 0443188424
Total Pages : 668 pages
Book Rating : 4.4/5 (431 download)
Download or read book Hexagonal Boron Nitride written by Kalim Deshmukh and published by Elsevier. This book was released on 2024-05-31 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hexagonal Boron Nitride: Synthesis, Properties, and Applications offers a comprehensive approach to hexagonal boron nitride (h-BN), covering synthesis, exfoliation, properties, characterization, functionalization, heterostructures, nanocomposites, and modelling and simulation, and guiding the reader towards advanced applications in biomedicine, electronics, energy storage, wastewater treatment, and other areas.The book begins by introducing hexagonal boron nitride, discussing classification, structure, synthesis methods, exfoliation, and functionalization techniques. This is followed by in-depth coverage of properties and characterization, as well as heterostructures and other two-dimensional materials, as well as nanocomposites. The fourth section of the book examines specific target applications, covering a range of cutting-edge areas including micro- and nano-electronics, anti-friction and anti-corrosive coatings, bone tissue engineering, wound healing, nanomedicine, drug delivery, catalysis, water treatment, energy storage and conversion, sensing and bio-sensing, and fire-retardant applications. Finally, computational modelling and simulation, and environmental aspects, are addressed in detail.This is a valuable resource for researchers and advanced students across nanotechnology, materials science, chemistry, environmental science, chemical engineering, biomedicine, electronics, and engineering. In an industrial setting, this book supports scientists, engineers, and R&D professionals with an interest in advanced 2D materials or nanomaterials for advanced applications. - Presents the synthesis, properties, functionalization, and characterization methods for hexagonal boron nitride - Explores novel applications across biomedicine, electronics, energy storage, and water treatment - Addresses key challenges, such as biocompatibility, toxicity, and environmental and health impact
Author : Bruce Edward Wade
Publisher :
ISBN 13 :
Total Pages : 642 pages
Book Rating : 4.:/5 (28 download)
Download or read book Boron Nitride Fibers from Polymer Precursors written by Bruce Edward Wade and published by . This book was released on 1992 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ben McLean
Publisher : CRC Press
ISBN 13 : 1000636674
Total Pages : 226 pages
Book Rating : 4.0/5 (6 download)
Download or read book Boron Nitride Nanomaterials written by Ben McLean and published by CRC Press. This book was released on 2022-12-23 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron nitride was first produced in the 18th century and, by virtue of its extraordinary mechanical strength, has found extensive application in industrial processes since the 1940s. However, the more recent discovery that boron nitride allotropes are as structurally diverse as those of carbon (e.g. fullerenes, graphene, carbon nanotubes) has placed this material, and particularly its low-dimensional allotropes, back at the forefront of modern material science. This book provides a comprehensive history of this rapid rise in the status of boron nitride and boron nitride nanomaterials, spanning the earliest examples of three-dimensional boron nitride allotropes, through to contemporary structures such as monolayer hexagonal boron nitride, boron nitride nanomeshes, boron nitride nanotubes and the incorporation of boron nitride into cutting-edge van der Waals heterostructures. It specifically focuses on the properties, applications and synthesis techniques for each of these allotropes and examines how the evolution in boron nitride production methods is linked to that in our understanding of how low-dimensional nanomaterials self-assemble, or ‘grow’, during synthesis. The book demonstrates the key synergy between growth mechanisms and the development of new, advanced nanostructured materials.
Author : Joachim Bill
Publisher : John Wiley & Sons
ISBN 13 : 3527613838
Total Pages : 313 pages
Book Rating : 4.5/5 (276 download)
Download or read book Precursor-Derived Ceramics written by Joachim Bill and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of high-purity ceramic materials from low-molecular weight, inorganic or organoelement precursors is a topic of increasing relevance within materials science. With this emerging technology it is possible to precisely tailor the properties of the ceramic material which enables new high-temperature or electronic applications. Every materials scientist and engineer involved in the research and development of new high-performance ceramic materials will find these results - presented at a recent workshop of the Max-Planck-Gesellschaft - of great importance for his own work.
Author : K. J. Paciorek
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (227 download)
Download or read book Boron-Nitride and Its Precursors written by K. J. Paciorek and published by . This book was released on 1987 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Formation of preceramic polymers by stepwise pyrolysis of borazines was found to be strongly dependent upon the ring substituents. Boron nitride fibers were obtained via preceramic polymers produced from B-triaminio-N-tris(trimethylsilyl)borazine. Studies were carried out to determine the suitability of linear boron-nitrogen composition as preceramic polymer precursors. The mechanisms responsible for the observed results are delineated.
Author : Eugene Moran
Publisher :
ISBN 13 : 9781536119084
Total Pages : 0 pages
Book Rating : 4.1/5 (19 download)
Download or read book Boron Nitride written by Eugene Moran and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hexagonal boron nitride nanosheet (BNNS) is an atomic-thick 2D material that exhibits many interesting properties such as high chemical stability and excellent mechanical and thermal properties. In Chapter One, the authors introduce two methods for the exfoliation of BNNS from hexagonal boron nitride (hBN). Then, methodologies for the surface functionalisation and nanocomposite construction are demonstrated by two BNNS based nanocomposites. The catalytic performance of the BNNS based nanocomposites is also evaluated and discussed in detail. Chapter two evaluates the formation of rolled hexagonal boron nitride nano-sheets (h-BN nanoscrolls) on their unique morphology, magnetic properties and applications. Due to the high chemical and thermal stabilities, as well as atomically smooth surfaces with free of dangling bonds, hBN has been used as barriers, passivation and support layers in 2D electronic devices, to maximise the electrical and optical characterisation of 2D materials. However, there still remains a challenge in obtaining large-area and high-quality hBN film for real 2D electronic devices. Chapter Three focuses on chemical vapor deposition (CVD), a promising method to overcome these limitations. Chapter Four discusses how a boron doped armchair graphene ribbon has been shown by cyclic voltammetry to be a potential catalyst to replace platinum, however the reaction catalysed was not identified. The authors use density functional calculations to show the reaction catalysed is likely dissociation of HO2. Chapter Five reveals a novel and industrially feasible route to incorporate boron nitride nanoparticles (BNNPs) in radiation-shielding aerospace structural materials. Chapter Six deals with the preparation and characterisation of boron nitride nanotube (BNNT)-reinforced biopolyester matrices. The morphology, hydrophilicity, biodegradability, cytotoxicity, thermal, mechanical, tribological and antibacterial properties of the resulting nanocomposites are discussed in detail. Chapter Seven presents theoretical estimations regarding the compressive buckling response of single walled boron nitride nanotubes (SWBNNTs), which have a similar crystal structure as single walled carbon nanotubes (SWCNTs). Moreover, SWBNNTs have excellent mechanical, insulating and dielectric properties. Finally, Chapter Eight shows how the different exchange mechanisms can be distinguished and measured by studying solid films where part of the 3He is replaced by immobile Ne atoms. The authors also show how the formation energy of vacancies and vacancy tunneling frequency can be obtained from NMR studies at high temperature.
Author : J.J. Pouch
Publisher : Trans Tech Publications Ltd
ISBN 13 : 3035704511
Total Pages : 426 pages
Book Rating : 4.0/5 (357 download)
Download or read book Synthesis and Properties of Boron Nitride written by J.J. Pouch and published by Trans Tech Publications Ltd. This book was released on 1991-01-01 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron nitride thin films can be deposited on different substrates using techniques such as plasma deposition, ion beam deposition and reactive sputter deposition.
Author : Ruey Yuan Lin
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (227 download)
Download or read book Exploratory Development on Formation of High Strength, High Modulus Boron Nitride Continuous Filament Yarns written by Ruey Yuan Lin and published by . This book was released on 1972 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: A process to produce the high strength, high modulus continuous boron nitride multifilament was developed. The process consists of three fundamental steps: fiber drawing, nitriding and hot stretching. The important process parameters in each step were studied and optimized. The highest average tensile strength and modulus observed thus far are 171 thousand psi and 40 million psi respectively. A complete line of fiber characterization techniques were established and the correlation between fiber structure and properties was also made. (Author, modified-PL).
Author :
Publisher : John Wiley & Sons
ISBN 13 : 3527321535
Total Pages : 531 pages
Book Rating : 4.5/5 (273 download)
Download or read book Mixed Metal Nanomaterials written by and published by John Wiley & Sons. This book was released on 2009-05-26 with total page 531 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book series Nanomaterials for the Life Sciences, provides an in-depth overview of all nanomaterial types and their uses in the life sciences. Each volume is dedicated to a specific material class and covers fundamentals, synthesis and characterization strategies, structure-property relationships and biomedical applications. The series brings nanomaterials to the Life Scientists and life science to the Materials Scientists so that synergies are seen and developed to the fullest. Written by international experts of various facets of this exciting field of research, the series is aimed at scientists of the following disciplines: biology, chemistry, materials science, physics, bioengineering, and medicine, together with cell biology, biomedical engineering, pharmaceutical chemistry, and toxicology, both in academia and fundamental research as well as in pharmaceutical companies. VOLUME 3 - Mixed Metal Nanomaterials This volume covers the aspects of synthesis, characterization and application of bimetallic and multielemental spherical and anisotropic nanomaterials in the life sciences.
Author : Committee on Advanced Fibers for High-Temperature Ceramic Composites
Publisher : National Academies Press
ISBN 13 : 0309569036
Total Pages : 112 pages
Book Rating : 4.3/5 (95 download)
Download or read book Ceramic Fibers and Coatings written by Committee on Advanced Fibers for High-Temperature Ceramic Composites and published by National Academies Press. This book was released on 1998-05-05 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-temperature ceramic fibers are the key components of ceramic matrix composites (CMCs). Ceramic fiber properties (strength, temperature and creep resistance, for example)-along with the debonding characteristics of their coatings-determine the properties of CMCs. This report outlines the state of the art in high-temperature ceramic fibers and coatings, assesses fibers and coatings in terms of future needs, and recommends promising avenues of research. CMCs are also discussed in this report to provide a context for discussing high-temperature ceramic fibers and coatings.
Author : Ashutosh Tiwari
Publisher : John Wiley & Sons
ISBN 13 : 1119242738
Total Pages : 448 pages
Book Rating : 4.1/5 (192 download)
Download or read book Advanced Ceramic Materials written by Ashutosh Tiwari and published by John Wiley & Sons. This book was released on 2016-08-05 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic materials are inorganic and non-metallic porcelains, tiles, enamels, cements, glasses and refractory bricks. Today, "ceramics" has gained a wider meaning as a new generation of materials influence on our lives; electronics, computers, communications, aerospace and other industries rely on a number of their uses. In general, advanced ceramic materials include electro-ceramics, optoelectronic-ceramics, superconductive ceramics and the more recent development of piezoelectric and dielectric ceramics. They can be considered for their features including mechanical properties, decorative textures, environmental uses, energy applications, as well as their usage in bio-ceramics, composites, functionally graded materials, intelligent ceramics and so on. Advanced Ceramic Materials brings together a group of subject matter experts who describe innovative methodologies and strategies adopted in the research and development of the advanced ceramic materials. The book is written for readers from diverse backgrounds across chemistry, physics, materials science and engineering, medical science, pharmacy, environmental technology, biotechnology, and biomedical engineering. It offers a comprehensive view of cutting-edge research on ceramic materials and technologies. Divided into 3 parts concerning design, composites and functionality, the topics discussed include: Chemical strategies of epitaxial oxide ceramics nanomaterials Biphasic, triphasic and multiphasic calcium orthophosphates Microwave assisted processing of advanced ceramic composites Continuous fiber reinforced ceramic matrix composites Yytria and magnesia doped alumina ceramic Oxidation induced crack healing SWCNTs vs MWCNTs reinforcement agents Organic and inorganic wastes in clay brick production Functional tantalum oxides Application of silver tin research on hydroxyapatite
Author :
Publisher :
ISBN 13 :
Total Pages : 2692 pages
Book Rating : 4.3/5 (91 download)
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
