Polymer Derived Ceramics

Author : Paolo Colombo
Publisher : DEStech Publications, Inc
Page : 490 pages
File Size : 43,5 Mb
Release : 2010
Category : Technology & Engineering
ISBN : 9781605950006

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Polymer Derived Ceramics by Paolo Colombo Pdf

This book presents the foundations of the science of polymer derived ceramics, enriched with many descriptions of applications. Written by a team of selected researchers, the text is a systematic, comprehensive introduction to all phases of polymer derived ceramics from synthesis strategies through properties measurement, and applications. New material is given on the nanolevel structure of PDCs, and it is shown how nano-sized modifications can alter and improve the properties of polymer derived ceramics, including high chemical durability, oxidation resistance, luminescence, and piezo-resistivity. Groundbreaking work is also described on novel precursors such as stoichiometric SiC, BN, and SiBCN ceramics. In terms of technology, this volume explains how PDCs are fabricated and how these novel materials are used in membranes, filters, MEMS, fibers, and micro-components. This book covers: synthesis, structure, properties and applications; strategies for characterizing and synthesizing PDCs; and, original research on pre-ceramic PDC precursors.

Author : Paolo Colombo,Rishi Raj
Publisher : John Wiley & Sons
Page : 153 pages
File Size : 47,7 Mb
Release : 2010-07-20
Category : Technology & Engineering
ISBN : 9780470880623

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Advances in Polymer Derived Ceramics and Composites by Paolo Colombo,Rishi Raj Pdf

This book collects some of papers presented at the very successful Symposium "Polymer Derived Ceramics and Composites" in the framework of the 8th Pacific Rim Conference on Ceramic and Glass Technology. There, over 70 researchers from around the world discussed their latest innovations over four full days. It covers all the main aspects of interdisciplinary research and development in the field of Polymer-Derived-Ceramics, from the precursor synthesis and characteristics to the polymer-to-ceramic conversion, from processing and shaping of preceramic polymers into ceramic components to their microstructure at the nano- and micro-scale, from their properties to their most relevant applications in different fields.

Author : Yashwant Mahajan,Johnson Roy
Publisher : Springer
Page : 1527 pages
File Size : 52,5 Mb
Release : 2020-11-26
Category : Technology & Engineering
ISBN : 3030163466

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Handbook of Advanced Ceramics and Composites by Yashwant Mahajan,Johnson Roy Pdf

This handbook presents an authoritative account of the potential of advanced ceramics and composites in strategic applications, including defense, national security, aerospace, and energy security (especially nuclear energy). It highlights how their unique combination of superior properties such as low density, high strength, high elastic modulus, high hardness, high temperature capability, and excellent chemical and environmental stability are optimized in technologies within these fields. The handbook is organized according to application type. It allows readers to learn about strategies that have been used in different fields and to transfer them to their own. The book addresses a wide variety of ceramics and their composites, including PZT ceramics, carbon nanotubes, aerogels, silica radomes, relaxor ferroelectrics, and many others.

Author : Joachim Bill,Fumihiro Wakai,Fritz Aldinger
Publisher : John Wiley & Sons
Page : 313 pages
File Size : 52,7 Mb
Release : 2008-07-11
Category : Technology & Engineering
ISBN : 9783527613830

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Precursor-Derived Ceramics by Joachim Bill,Fumihiro Wakai,Fritz Aldinger Pdf

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 : Deepak Verma,Mohit Sharma,Kheng-Lim Goh,Siddharth Jain,Himani Sharma
Publisher : Woodhead Publishing
Page : 313 pages
File Size : 50,7 Mb
Release : 2021-09-15
Category : Technology & Engineering
ISBN : 9780128222928

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Sustainable Biopolymer Composites by Deepak Verma,Mohit Sharma,Kheng-Lim Goh,Siddharth Jain,Himani Sharma Pdf

Sustainable Biopolymer Composites: Biocompatibility, Self-healing, Modeling, Repair and Recyclability focuses on sustainable polymer composites also referred to as bio- composites. Vital aspects such as biodegradability, biocompatibility, repair and recyclability are discussed in detail. In addition, complexities like rapid and scalable processing, onsite repair, and minimal environmental effects are also covered along with the appropriateness of advanced polymer composites for structural applications in automotive, aviation and marine industries. This book will be an indispensable resource for scientists, engineers, physicists and chemists who are interested in the preparation, applications and repair analysis of bio-based composites and nano-composites for different types of applications. The composites repair process is extremely complex, hence it is essential to have a comprehensive understanding of damage mechanisms to apply the most suitable repair technique. Damage assessment using onsite inspection, e.g., NDT, THz techniques and the automated repair process for reliability and repeatability, are vital parameters when executing bonded composite repair. Furthermore, overall integrity and structural health monitoring of composites repair is also necessary. Features detailed information on damage detection, failure analysis and repair of advanced bio-polymer composites Emphasizes biocompatibility, degradation and recyclability of these materials Features key chapters on molecular dynamics, multi-scale modeling and self-healing Presents a roadmap for materials selection, processing and industrial utilization for a broad range of applications

Author : BCC Research
Publisher : Unknown
Page : 128 pages
File Size : 47,8 Mb
Release : 2018-05
Category : Electronic
ISBN : 1622967372

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Polymer-Derived Ceramics by BCC Research Pdf

Author : Committee on Advanced Fibers for High-Temperature Ceramic Composites,Commission on Engineering and Technical Systems,National Materials Advisory Board,Division on Engineering and Physical Sciences,National Research Council
Publisher : National Academies Press
Page : 112 pages
File Size : 49,9 Mb
Release : 1998-05-05
Category : Technology & Engineering
ISBN : 9780309569033

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Ceramic Fibers and Coatings by Committee on Advanced Fibers for High-Temperature Ceramic Composites,Commission on Engineering and Technical Systems,National Materials Advisory Board,Division on Engineering and Physical Sciences,National Research Council Pdf

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 : Rajat Banerjee,Indranil Manna
Publisher : Elsevier
Page : 617 pages
File Size : 41,6 Mb
Release : 2013-07-31
Category : Technology & Engineering
ISBN : 9780857093493

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Ceramic Nanocomposites by Rajat Banerjee,Indranil Manna Pdf

Ceramic nanocomposites have been found to have improved hardness, strength, toughness and creep resistance compared to conventional ceramic matrix composites. Ceramic nanocomposites reviews the structure and properties of these nanocomposites as well as manufacturing and applications.Part one looks at the properties of different ceramic nanocomposites, including thermal shock resistance, flame retardancy, magnetic and optical properties as well as failure mechanisms. Part two deals with the different types of ceramic nanocomposites, including the use of ceramic particles in metal matrix composites, carbon nanotube-reinforced glass-ceramic matrix composites, high temperature superconducting ceramic nanocomposites and ceramic particle nanofluids. Part three details the processing of nanocomposites, including the mechanochemical synthesis of metallic–ceramic composite powders, sintering of ultrafine and nanosized ceramic and metallic particles and the surface treatment of carbon nanotubes using plasma technology. Part four explores the applications of ceramic nanocomposites in such areas as energy production and the biomedical field.With its distinguished editors and international team of expert contributors, Ceramic nanocomposites is a technical guide for professionals requiring knowledge of ceramic nanocomposites, and will also offer a deeper understanding of the subject for researchers and engineers within any field dealing with these materials. Reviews the structure and properties of ceramic nanocomposites as well as their manufacturing and applications Examines properties of different ceramic nanocomposites, as well as failure mechanisms Details the processing of nanocomposites and explores the applications of ceramic nanocomposites in areas such as energy production and the biomedical field

Author : Michael Scheffler,Paolo Colombo
Publisher : John Wiley & Sons
Page : 670 pages
File Size : 43,6 Mb
Release : 2006-05-12
Category : Technology & Engineering
ISBN : 9783527606702

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Cellular Ceramics by Michael Scheffler,Paolo Colombo Pdf

Cellular ceramics are a specific class of porous materials which includes among others foams, honeycombs, connected fibers, robocast structures and assembled hollow spheres. Because of their particular structure, cellular ceramics display a wide variety of specific properties which make them indispensable for various engineering applications. An increasing number of patents, scientific literature and international conferences devoted to cellular materials testifies to a rapidly growing interest of the technical community in this topic. New applications for cellular ceramics are constantly being put under development. The book, authored by leading experts in this emerging field, gives an overview of the main aspects related to the processing of diverse cellular ceramic structures, methods of structural and properties characterisation and well established industrial, novel and potential applications. It is an introduction to newcomers in this research area and allows students to obtain an in-depth knowledge of basic and practical aspects of this fascinating class of advanced materials.

Author : Toshihiro Ishikawa
Publisher : CRC Press
Page : 109 pages
File Size : 40,9 Mb
Release : 2019-10-31
Category : Medical
ISBN : 9781000681734

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Ceramic Fibers and Their Applications by Toshihiro Ishikawa Pdf

To date, several polymer-derived ceramic fibers have been developed all over the world, out of which SiC fibers synthesized from polycarbosilane and their derivatives have achieved highest heat resistance and show excellent mechanical properties. Their use in ceramic matrix composite materials has resulted in high-temperature stability and light weight, which show great promise in next-generation applications, such as aerospace engines. This book presents polymer-derived ceramic fibers from a historical viewpoint; basic information about them, such as production process, fine structures, and physical properties; their applications; and prospects of future inorganic fibers.

Author : Ajay Kumar Mishra
Publisher : CRC Press
Page : 304 pages
File Size : 54,7 Mb
Release : 2018-03-05
Category : Science
ISBN : 9781351671637

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Smart Ceramics by Ajay Kumar Mishra Pdf

Recent advances in nanotechnology have paved the way for the development of new smart materials. The term "smart ceramics" refers to ceramic materials fabricated from ultrafine particles. They have attracted the attention of researchers and scientists thanks to their potential to manipulate the length scale in the nanorange, leading to better and some unusual material properties. Smart ceramics ensure control of particle size, surface contamination, and degree of agglomeration. They play a crucial role in challenging applications such as bone surgery (e.g., the development of substitutes for load-bearing bone parts) and in biomedical science, especially in tissue engineering, dental applications, and drug and antigen delivery using modified ceramics. Porous nanostructured ceramics have potential use in both simple and complex applications, such as bioimaging, sensors, paints and pigments, optics, and electronics, because of their surface- and size-dependent properties. For the synthesis of smart ceramics, the sol-gel route has been mainly utilized because of its ability to produce a large variety of compositions and to ensure homogeneous mixing of the constituent particles at low temperature. This book describes the innovations in technologies through the development of functionalized ceramic materials for various applications. It also describes recent and expected challenges, along with their potential solutions, in advanced techniques for the synthesis and characterization of nanostructured ceramics and their composites: bioceramics, bioactive ceramics, multifunctional nanoceramics, transparent ceramics, nanocore shells, nanowires, thin films, nanotubes, and nanorods. The applications include the environment, health care, electrochemical sensors, high-temperature superconductors, nuclear reactor fuels, electrical insulators, refractory materials, electrical transformers, and magnetic core memory. The book will benefit researchers, scientists, engineers, and technologists working in the industry and in national and international research laboratories; academics who are interested in traditional and advanced smart ceramic composites; and students pursuing their postgraduate, graduate, and undergraduate degrees in smart ceramics, nanomaterials, nanoscience, and engineering.

Author : Shruti Gupta
Publisher : Unknown
Page : 0 pages
File Size : 55,6 Mb
Release : 2023
Category : Electronic
ISBN : OCLC:1424637607

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Additive Manufacturing of Polymer-Derived Ceramics by Shruti Gupta Pdf

This dissertation describes the stereolithography-based additive manufacturing of ceramic matrix composites starting from preceramic polymers. Preceramic polymer route to produce high performance silicon carbide based ceramic matrix composites has been explored with various techniques to produce parts with high strengths. This route makes polymer processing amenable to ceramics. Ceramic matrix composites (CMCs), especially those based on SiC or SiOC, possess low weight and exhibit superior high temperature properties. It is possible to attain a higher degree of synthetic control over the microstructure and properties due to the tailorable polymer precursor chemistry and processing. Polymer-derived ceramics (PDCs) produced upon pyrolysis are mostly amorphous solids often containing a large amount of free carbon. However, the main issue with producing such ceramics is the inherent density increase from the preceramic polymer (1 g/cc) to 3.21 g/cc of the SiC ceramic. This results in a tremendous amount of shrinkage during the polymer to ceramic transformation causing cracks and pore formation in the ceramic matrix. The mechanical strength of PDCs suffers from these cracks, pores and microstructure inhomogeneities. Despite its benefits, the SLA process faces the challenge of producing PDCs with high strengths. The goal of this dissertation is to identify techniques to combat defects in SLA printed ceramics and increase their mechanical strength. This dissertation details exploratory work in identifying 3 main materials and processing pathways to predict and resolve such shrinkage-related microstructural defects in the PDCs. Firstly, if the shrinkage in the preceramic polymer matrix governs the pore and crack formation, it is vital to determine how the mechanical properties of these SLA printed green bodies affect the strength of the PDC formed upon pyrolysis. Therefore, the first study was based on comparing the mechanical properties of the printed green bodies of the preceramic resins to those of the pyrolyzed ceramics. Properties of the printed preceramic polymer such as the modulus and strain-at-break played an important role in determining the failure in the PDCs. These properties can be modulated by choosing an appropriate crosslinking chemistry Such comparative studies between these properties of the green bodies and the ceramic microstructure have not been conducted in the past. This work identifies strain-at-break as a new parameter to be considered to predict the amount of shrinkage sustained by the matrix without cracking. By eliminating cracks, higher strengths can be achieved. The compressive strengths of the lattices produced in this work were comparable to the highest reported values in the literature. Secondly, if inert fillers such as ceramic particles are added to the preceramic resin as second phase heterogeneities, then the overall density of the PDC will increase and the shrinkage will be reduced as shrinkage will not occur in the volume occupied by the inert fillers. In the next part of this dissertation, the effect of silicon nitride inert fillers in the PDC matrix on the strength of the composite PDCs was studied. It was observed that not only the amount of particle loading, but also the particle size affected the strengths of such ceramic composites. Besides, preliminary studies on polymer infiltration and pyrolysis (PIP) of ceramics produced with high solids loading were carried out. This process generated flexural strengths of 197 MPa, higher than other techniques reported in this work. A combination of SLA printing and PIP showed promise in future development of high strength industrially important parts such as gas turbine blades, splash plates and heat exchangers. Lastly, if reactive components (or active fillers) such as transition metals are present in the preceramic polymer system, upon pyrolysis, the reaction of such active fillers with the gaseous byproducts will cause an expansion in the volume of the PDC matrix during pyrolysis, thereby curbing the shrinkage. Importantly for the additive manufacture of ceramics, this is the first report on the incorporation of active fillers in vat photopolymerization techniques. Chapter 7 will describe iron as an active filler which when present in catalytic amounts in siloxane-based resins lowered the crystallization temperature of SiC to ~1200°C. This process will enable low temperature fabrication of more complex PDCs while also improving their strengths. The presence of crystalline domains of silicon carbide served as reinforcements to the PDC matrix. Preliminary work was also carried out on titanium as an active filler. In both cases, addition of active filler significantly increased the strengths of the PDCs.

Author : Tatsuki Ohji,Paolo Colombo,Makio Naito,Javier E. Garay,Hua-Tay Lin
Publisher : John Wiley & Sons
Page : 212 pages
File Size : 41,6 Mb
Release : 2014-02-03
Category : Technology & Engineering
ISBN : 9781118771501

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Innovative Processing and Manufacturing of Advanced Ceramics and Composites II by Tatsuki Ohji,Paolo Colombo,Makio Naito,Javier E. Garay,Hua-Tay Lin Pdf

Contains collection of papers from the below symposia held during the 10th Pacific Rim Conference on Ceramic and Glass Technology (PacRim10), June 2-7, 2013, in Coronado, California 2012: Novel, Green, and Strategic Processing and Manufacturing Technologies Polymer Derived Ceramics and Composites Advanced Powder Processing and Manufacturing Technologies Synthesis and Processing of Materials Using Electric Fields/Currents

Author : Low, I. M.
Publisher : IGI Global
Page : 679 pages
File Size : 46,6 Mb
Release : 2013-05-31
Category : Technology & Engineering
ISBN : 9781466640672

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MAX Phases and Ultra-High Temperature Ceramics for Extreme Environments by Low, I. M. Pdf

Ceramics are a versatile material, more so than is widely known. They are thermal resistant, poor electrical conductors, insulators against nuclear radiation, and not easily damaged, making ceramics a key component in many industrial processes. MAX Phases and Ultra-High Temperature Ceramics for Extreme Environments investigates a new class of ultra-durable ceramic materials, which exhibit characteristics of both ceramics and metals. Readers will explore recent advances in the manufacturing of ceramic materials that improve their durability and other physical properties, enhancing their overall usability and cost-effectiveness. This book will be of primary use to researchers, academics, and practitioners in chemical, mechanical, and electrical engineering. This book is part of the Research Essentials collection.

Author : Sergey Skipidarov,Mikhail Nikitin
Publisher : Springer Nature
Page : 327 pages
File Size : 52,6 Mb
Release : 2019-12-17
Category : Technology & Engineering
ISBN : 9783030120573

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Novel Thermoelectric Materials and Device Design Concepts by Sergey Skipidarov,Mikhail Nikitin Pdf

This book presents and facilitates the interchange of new research and development results concerned with hot topics in thermoelectric generators (TEGs) research, development and production. Topics include prospective thermoelectric materials for manufacturing TEGs operating in low-, mid-, and high temperature ranges, thermal and mechanical degradation issues in prospective thermoelectric materials and TEG modules, theoretical study of novel inorganic and organic thermoelectric materials, novel methods and apparatus for measuring performance of thermoelectric materials and TEGs, and thermoelectric power generators simulation, modeling, design and practice.This book helps researchers tackle the challenges that still remain in creating cheap and effective TEGs and presents the latest trends and technologies in development and production of advanced thermoelectric generation devices. Provides a concentration of new research and development in the field of Thermoelectric energy generation; Facilitates the interchange of new ideas and results to react effectively to the challenges of Thermoelectric generators; Explains both the advancements and challenges in TEGs.