Low Temperature, Low Pressure Fabrication of Ultra High Temperature Ceramics (UHTCs). PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Low Temperature, Low Pressure Fabrication of Ultra High Temperature Ceramics (UHTCs). PDF full book. Access full book title Low Temperature, Low Pressure Fabrication of Ultra High Temperature Ceramics (UHTCs). by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
Get Book Here
Book Description
The US Air Force is interested in developing fiber-reinforced ceramic composites that perform at ultra-high temperatures (greater or more than 1500 degrees C) under oxidative conditions, especially for hypersonic vehicles. Two potential approaches are: (a) Utilizing existing carbon-fiber-reinforced carbon-matrix composites (C/C) or carbon-fiber-reinforced silicon carbide-matrix composites (C/SiC) coated by thick (>100 um) ultra-high temperature ceramic (UHTC) coatings, or (b) Replacing the C and SiC matrices of such composites with an ultra-high temperature matrix, processed by conventional composite techniques. The most investigated UHTCs are ZrB2/SiC and HfB2/SiC particulate composites (70:30 to 80:20 volume ratio). Wet processing via slurries is potentially a practical method for making such thick coatings and matrices. The project focused on developing slurry processing for thick ZrB2/SiC coatings on SiC and, to a limited extent, C/SiC composite substrates using preceramic and precarbon polymers combined with inert fillers and/or reactive metals. The evolved coatings were tested for their oxidation resistance under various conditions. A limited effort to assess the capability of bulk compositions made of slurries suitable for processing matrices for fiber-reinforced composites was also performed. Out of two distinctly different approaches and various compositions and preceramic polymers, the most promising stepwise approach was determined to be (1) forming ZrB2/C porous coatings ("preforms") processed from phenolic-based slurries, then (2) reacting the preform coatings with molten Si to form SiC and (3) converting residual Si to SiC. This technique resulted in highly dense, well adhering composite coatings that were 100 um thick and over. Thick coatings made by this approach provided much better characteristics and performance than other formulations and processes.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
Get Book Here
Book Description
The US Air Force is interested in developing fiber-reinforced ceramic composites that perform at ultra-high temperatures (greater or more than 1500 degrees C) under oxidative conditions, especially for hypersonic vehicles. Two potential approaches are: (a) Utilizing existing carbon-fiber-reinforced carbon-matrix composites (C/C) or carbon-fiber-reinforced silicon carbide-matrix composites (C/SiC) coated by thick (>100 um) ultra-high temperature ceramic (UHTC) coatings, or (b) Replacing the C and SiC matrices of such composites with an ultra-high temperature matrix, processed by conventional composite techniques. The most investigated UHTCs are ZrB2/SiC and HfB2/SiC particulate composites (70:30 to 80:20 volume ratio). Wet processing via slurries is potentially a practical method for making such thick coatings and matrices. The project focused on developing slurry processing for thick ZrB2/SiC coatings on SiC and, to a limited extent, C/SiC composite substrates using preceramic and precarbon polymers combined with inert fillers and/or reactive metals. The evolved coatings were tested for their oxidation resistance under various conditions. A limited effort to assess the capability of bulk compositions made of slurries suitable for processing matrices for fiber-reinforced composites was also performed. Out of two distinctly different approaches and various compositions and preceramic polymers, the most promising stepwise approach was determined to be (1) forming ZrB2/C porous coatings ("preforms") processed from phenolic-based slurries, then (2) reacting the preform coatings with molten Si to form SiC and (3) converting residual Si to SiC. This technique resulted in highly dense, well adhering composite coatings that were 100 um thick and over. Thick coatings made by this approach provided much better characteristics and performance than other formulations and processes.
Author: Waltraud M. Kriven
Publisher: John Wiley & Sons
ISBN: 111921176X
Category : Technology & Engineering
Languages : en
Pages : 353
Get Book Here
Book Description
The Ceramic Engineering and Science Proceeding has been published by The American Ceramic Society since 1980. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.
Author: Narottam P. Bansal
Publisher: John Wiley & Sons
ISBN: 0470930942
Category : Technology & Engineering
Languages : en
Pages : 322
Get Book Here
Book Description
Three international symposia “Innovative Processing and Synthesis of Ceramics, Glasses and Composites”, “Ceramic Matrix Composites”, and “Microwave Processing of Ceramics” were held during Materials Science & Technology 2009 Conference & Exhibition (MS&T’09), Pittsburgh, PA, October 25-29, 2009. These symposia provided an international forum for scientists, engineers, and technologists to discuss and exchange state-of-the-art ideas, information, and technology on advanced methods and approaches for processing, synthesis and characterization of ceramics, glasses, and composites. A total of 83 papers, including 20 invited talks, were presented in the form of oral and poster presentations. Authors from 19 countries (Austria, Belarus, Brazil, Bulgaria, Canada, China, Egypt, France, Germany, India, Iran, Italy, Japan, Russia, South Korea, Taiwan, Turkey, U.K., and the United States) participated. The speakers represented universities, industries, and government research laboratories.
Author: Dileep Singh
Publisher: John Wiley & Sons
ISBN: 0470584254
Category : Technology & Engineering
Languages : en
Pages : 350
Get Book Here
Book Description
Gain insight into the mechanical properties and performance of engineering ceramics and composites. This collection of articles illustrates the Mechanical Behavior and Performance of Ceramics & Composites symposium, which included over 100 presentations representing 10 countries. The symposium addressed the cutting-edge topics on mechanical properties and reliability of ceramics and composites and their correlations to processing, microstructure, and environmental effects.
Author: It-Meng Low
Publisher: Engineering Science Reference
ISBN: 9781466640665
Category : Ceramic-matrix composites
Languages : en
Pages : 0
Get Book Here
Book Description
"This book investigates a new class of ultra-durable ceramic materials, which exhibit characteristics of both ceramics and metals, and 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"--
Author: Shyan-lung Chung
Publisher: World Scientific
ISBN: 9814678988
Category : Technology & Engineering
Languages : en
Pages : 698
Get Book Here
Book Description
This proceedings collected together ninety-seven selected articles on recent research works and innovations in material science and energy engineering, presented at the 2014 International Conference on Materials Science and Energy Engineering (CMSEE 2014), held in Sanya, Hainan, China during December 12 - 14, 2014.CMSEE2014 covers a wide range of fundamental studies, technical innovations and industrial applications in material science and energy engineering, and were attended by 130 participants from different countries and regions in the world including China, Canada, Japan, Korea, Taiwan, Turkey, Egypt and Russia, to exchange notes on latest research, and synergic in future scientific collaborations.All papers submitted were subjected to a rigorous peer-review process by at least two independent reviewers to ensure that articles selected are of highest standard and are relevance to the aims and scope of CMSEE 2014.
Author: Low, I. M.
Publisher: IGI Global
ISBN: 1466640677
Category : Technology & Engineering
Languages : en
Pages : 679
Get Book Here
Book Description
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:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
Author: Zuhair A. Munir
Publisher: John Wiley & Sons
ISBN: 9780470880586
Category : Technology & Engineering
Languages : en
Pages : 250
Get Book Here
Book Description
With continued discoveries and innovations, the field of materials synthesis and processing remains as it has been for many decades, a vibrant and fertile area for research and development. It comes, therefore, as no surprise that every Pac Rim conference has had considerable emphasis on this topic with many symposia devoted to various aspects of this field. This Ceramic Transactions volume represents selected papers based on presentations in four symposia during the 8th Pacific Rim Conference on Ceramic and Glass Technology, held in Vancouver, British Columbia, May 31-June 5, 2009.
Author: Mrityunjay Singh
Publisher: John Wiley & Sons
ISBN: 1119407532
Category : Technology & Engineering
Languages : en
Pages : 590
Get Book Here
Book Description
Global population growth and tremendous economic development has brought us to the crossroads of long-term sustainability and risk of irreversible changes in the ecosystem. Energy efficient and ecofriendly technologies and systems are critically needed for further growth and sustainable development. While ceramic matrix composites were originally developed to overcome problems associated with the brittle nature of monolithic ceramics, today the composites can be tailored for customized purposes and offer energy efficient and ecofriendly applications, including aerospace, ground transportation, and power generation systems. The 9th International Conference on High Temperature Ceramic Matrix Composites (HTCMC 9) was held in Toronto, Canada, June 26-30, 2016 to discuss challenges and opportunities in manufacturing, commercialization, and applications for these important material systems. The Global Forum on Advanced Materials and Technologies for Sustainable Development (GFMAT 2016) was held in conjunction with HTCMC 9 to address key issues, challenges, and opportunities in a variety of advanced materials and technologies that are critically needed for sustainable societal development. This Ceramic Transactions volume contains a collection of peer reviewed papers from the 16 below symposia that were submitted from these two conferences Design and Development of Advanced Ceramic Fibers, Interfaces, and Interphases in Composites- A Symposium in Honor of Professor Roger Naslain Innovative Design, Advanced Processing, and Manufacturing Technologies Materials for Extreme Environments: Ultrahigh Temperature Ceramics (UHTCs) and Nano-laminated Ternary Carbides and Nitrides (MAX Phases) Polymer Derived Ceramics and Composites Advanced Thermal and Environmental Barrier Coatings: Processing, Properties, and Applications Thermomechanical Behavior and Performance of Composites Ceramic Integration and Additive Manufacturing Technologies Component Testing and Evaluation of Composites CMC Applications in Transportation and Industrial Systems Powder Processing Innovation and Technologies for Advanced Materials and Sustainable Development Novel, Green, and Strategic Processing and Manufacturing Technologies Ceramics for Sustainable Infrastructure: Geopolymers and Sustainable Composites Advanced Materials, Technologies, and Devices for Electro-optical and Medical Applications Porous Ceramics for Advanced Applications Through Innovative Processing Multifunctional Coatings for Sustainable Energy and Environmental Applications
