Effectiveness Of Diffusion Barrier Coatings For Mo Re Embedded In C Sic And C C

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Effectiveness of Diffusion Barrier Coatings for Mo-Re Embedded in C/Sic and C/C

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Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781723829871
Total Pages : 48 pages
Book Rating : 4.8/5 (298 download)

Book Synopsis Effectiveness of Diffusion Barrier Coatings for Mo-Re Embedded in C/Sic and C/C by : National Aeronautics and Space Adm Nasa

Download or read book Effectiveness of Diffusion Barrier Coatings for Mo-Re Embedded in C/Sic and C/C written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-19 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced high-temperature cooling applications may often require the elevated-temperature capability of carbon/silicon carbide or carbon/carbon composites in combination with the hermetic capability of metallic tubes. In this paper, the effects of C/SiC and C/C on tubes fabricated from several different refractory metals were evaluated. Though Mo, Nb, and Re were evaluated in the present study, the primary effort was directed toward two alloys of Mo-Re, namely, arc cast Mo-41Re and powder metallurgy Mo-47.5Re. Samples of these refractory metals were subjected to either the PyC/SiC deposition or embedding in C/C. MoSi2(Ge), R512E, and TiB2 coatings were included on several of the samples as potential diffusion barriers. The effects of the processing and thermal exposure on the samples were evaluated by conducting burst tests, microhardness surveys, and scanning electron microscopic examination (using either secondary electron or back scattered electron imaging and energy dispersive spectroscopy). The results showed that a layer of brittle Mo-carbide formed on the substrates of both the uncoated Mo-41Re and the uncoated Mo-47.5Re, subsequent to the C/C or the PyC/SiC processing. Both the R512E and the MoSi2(Ge) coatings were effective in preventing not only the diffusion of C into the Mo-Re substrate, but also the formation of the Mo-carbides. However, none of the coatings were effective at preventing both C and Si diffusion without some degradation of the substrate.Glass, David E. and Shenoy, Ravi N. and Wang, Zeng-Mei and Halbig, Michael C.Glenn Research Center; Langley Research CenterPROTECTIVE COATINGS; CARBON-CARBON COMPOSITES; RHENIUM; FABRICATION; REFRACTORY METALS; POWDER METALLURGY; SILICON CARBIDES; MOLYBDENUM CARBIDES; DIFFUSION; HERMETIC SEALS; DEGRADATION; SUBSTRATES; TITANIUM BORIDES; BURST TESTS; SCANNING ELECTRON MICROSCOPY; HIGH TEMPERATURE; MICROHARDNESS

Effectiveness of Diffusion Barrier Coatings for Mo-Re Embedded in C/SiC and C/C

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Author :
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (317 download)

Book Synopsis Effectiveness of Diffusion Barrier Coatings for Mo-Re Embedded in C/SiC and C/C by :

Download or read book Effectiveness of Diffusion Barrier Coatings for Mo-Re Embedded in C/SiC and C/C written by and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Advanced Ceramics and Composites

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Author : Yashwant Mahajan
Publisher : Springer
ISBN 13 : 9783030163464
Total Pages : 1527 pages
Book Rating : 4.1/5 (634 download)

Book Synopsis Handbook of Advanced Ceramics and Composites by : Yashwant Mahajan

Download or read book Handbook of Advanced Ceramics and Composites written by Yashwant Mahajan and published by Springer. This book was released on 2020-11-26 with total page 1527 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Environmental Barrier Coatings

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Author : Kang N. Lee
Publisher : MDPI
ISBN 13 : 3039365177
Total Pages : 168 pages
Book Rating : 4.0/5 (393 download)

Book Synopsis Environmental Barrier Coatings by : Kang N. Lee

Download or read book Environmental Barrier Coatings written by Kang N. Lee and published by MDPI. This book was released on 2020-12-29 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global increase in air travel will require commercial vehicles to be more efficient than ever before. Advanced engine hot section materials are a key technology required to keep fuel consumption and emission to a minimum in next-generation gas turbines. Ceramic matrix composites (CMCs) are the most promising material to revolutionize gas turbine hot section materials technology because of their excellent high‐temperature properties. Rapid surface recession due to volatilization by water vapor is the Achilles heel of CMCs. Environmental barrier coatings (EBCs) is an enabling technology for CMCs, since it protects CMCs from water vapor. The first CMC component entered into service in 2016 in a commercial engine, and more CMC components are scheduled to follow within the next few years. One of the most difficult challenges to CMC components is EBC durability, because failure of EBC leads to a rapid reduction in CMC component life. Key contributors to EBC failure include recession, oxidation, degradation by calcium‐aluminum‐magnesium silicates (CMAS) deposits, thermal and thermo‐mechanical strains, particle erosion, and foreign object damage (FOD). Novel EBC chemistries, creative EBC designs, and robust processes are required to meet EBC durability challenges. Engine-relevant testing, characterization, and lifing methods need to be developed to improve EBC reliability. The aim of this Special Issue is to present recent advances in EBC technology to address these issues. In particular, topics of interest include but are not limited to the following: • Novel EBC chemistries and designs; • Processing including plasma spray, suspension plasma spray, solution precursor plasma spray, slurry process, PS-PVD, EB-PVD, and CVD; • Testing, characterization, and modeling; • Lifing.

Handbook of Ceramic Composites

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Author : Narottam P. Bansal
Publisher : Springer Science & Business Media
ISBN 13 : 0387239863
Total Pages : 547 pages
Book Rating : 4.3/5 (872 download)

Book Synopsis Handbook of Ceramic Composites by : Narottam P. Bansal

Download or read book Handbook of Ceramic Composites written by Narottam P. Bansal and published by Springer Science & Business Media. This book was released on 2006-08-25 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable handbook has been compiled by internationally renowned researchers in the field. Each chapter is focused on a specific composite system or a class of composites, presenting a detailed description of processing, properties, and applications.

Plasma Electrolytic Oxidation (PEO) Coatings

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Author : Marta Mohedano
Publisher : MDPI
ISBN 13 : 3036505520
Total Pages : 172 pages
Book Rating : 4.0/5 (365 download)

Book Synopsis Plasma Electrolytic Oxidation (PEO) Coatings by : Marta Mohedano

Download or read book Plasma Electrolytic Oxidation (PEO) Coatings written by Marta Mohedano and published by MDPI. This book was released on 2021-06-02 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma electrolytic oxidation (PEO), also known as micro-arc oxidation (MAO), functionalizes surfaces, improving the mechanical, thermal, and corrosion performance of metallic substrates, along with other tailored properties (e.g., biocompatibility, catalysis, antibacterial response, self-lubrication, etc.). The extensive field of applications of this technique ranges from structural components, in particular, in the transport sector, to more advanced fields, such as bioengineering. The present Special Issue covers the latest advances in PEO‐coated light alloys for structural (Al, Mg) and biomedical applications (Ti, Mg), with 10 research papers and 1 review from leading research groups around the world.

Ceramic Coatings

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Author : Feng Shi
Publisher : BoD – Books on Demand
ISBN 13 : 9535100831
Total Pages : 300 pages
Book Rating : 4.5/5 (351 download)

Book Synopsis Ceramic Coatings by : Feng Shi

Download or read book Ceramic Coatings written by Feng Shi and published by BoD – Books on Demand. This book was released on 2012-02-24 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main target of this book is to state the latest advancement in ceramic coatings technology in various industrial fields. The book includes topics related to the applications of ceramic coating covers in enginnering, including fabrication route (electrophoretic deposition and physical deposition) and applications in turbine parts, internal combustion engine, pigment, foundry, etc.

Advances in Ceramic Matrix Composites

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Author : I M Low
Publisher : Woodhead Publishing
ISBN 13 : 0081021674
Total Pages : 844 pages
Book Rating : 4.0/5 (81 download)

Book Synopsis Advances in Ceramic Matrix Composites by : I M Low

Download or read book Advances in Ceramic Matrix Composites written by I M Low and published by Woodhead Publishing. This book was released on 2018-01-20 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Ceramic Matrix Composites, Second Edition, delivers an innovative approach to ceramic matrix composites, focusing on the latest advances and materials developments. As advanced ceramics and composite materials are increasingly utilized as components in batteries, fuel cells, sensors, high-temperature electronics, membranes and high-end biomedical devices, and in seals, valves, implants, and high-temperature and wear components, this book explores the substantial progress in new applications. Users will gain knowledge of the latest advances in CMCs, with an update on the role of ceramics in the fabrication of Solid Oxide Fuel Cells for energy generation, and on natural fiber-reinforced eco-friendly geopolymer and cement composites. The specialized information contained in this book will be highly valuable to researchers and graduate students in ceramic science, engineering and ceramic composites technology, and engineers and scientists in the aerospace, energy, building and construction, biomedical and automotive industries. Provides detailed coverage of parts and processing, properties and applications Includes new developments in the field, such as natural fiber-reinforced composites and the use of CMCs in Solid Oxide Fuel Cells (SOFCs) Presents state-of-the-art research, enabling the reader to understand the latest applications for CMCs

Atomic Layer Deposition for Semiconductors

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Author : Cheol Seong Hwang
Publisher : Springer Science & Business Media
ISBN 13 : 146148054X
Total Pages : 266 pages
Book Rating : 4.4/5 (614 download)

Book Synopsis Atomic Layer Deposition for Semiconductors by : Cheol Seong Hwang

Download or read book Atomic Layer Deposition for Semiconductors written by Cheol Seong Hwang and published by Springer Science & Business Media. This book was released on 2013-10-18 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering thorough coverage of atomic layer deposition (ALD), this book moves from basic chemistry of ALD and modeling of processes to examine ALD in memory, logic devices and machines. Reviews history, operating principles and ALD processes for each device.

Advances in Composites Manufacturing and Process Design

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Author : Philippe Boisse
Publisher : Woodhead Publishing
ISBN 13 : 1782423206
Total Pages : 493 pages
Book Rating : 4.7/5 (824 download)

Book Synopsis Advances in Composites Manufacturing and Process Design by : Philippe Boisse

Download or read book Advances in Composites Manufacturing and Process Design written by Philippe Boisse and published by Woodhead Publishing. This book was released on 2015-07-29 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacturing processes of composite materials are numerous and often complex. Continuous research into the subject area has made it hugely relevant with new advances enriching our understanding and helping us overcome design and manufacturing challenges. Advances in Composites Manufacturing and Process Design provides comprehensive coverage of all processing techniques in the field with a strong emphasis on recent advances, modeling and simulation of the design process. Part One reviews the advances in composite manufacturing processes and includes detailed coverage of braiding, knitting, weaving, fibre placement, draping, machining and drilling, and 3D composite processes. There are also highly informative chapters on thermoplastic and ceramic composite manufacturing processes, and repairing composites. The mechanical behaviour of reinforcements and the numerical simulation of composite manufacturing processes are examined in Part Two. Chapters examine the properties and behaviour of textile reinforcements and resins. The final chapters of the book investigate finite element analysis of composite forming, numerical simulation of flow processes, pultrusion processes and modeling of chemical vapour infiltration processes. Outlines the advances in the different methods of composite manufacturing processes Provides extensive information on the thermo-mechanical behavior of reinforcements and composite prepregs Reviews numerical simulations of forming and flow processes, as well as pultrusion processes and modeling chemical vapor infiltration

Cold-Spray Coatings

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Author : Pasquale Cavaliere
Publisher : Springer
ISBN 13 : 3319671839
Total Pages : 566 pages
Book Rating : 4.3/5 (196 download)

Book Synopsis Cold-Spray Coatings by : Pasquale Cavaliere

Download or read book Cold-Spray Coatings written by Pasquale Cavaliere and published by Springer. This book was released on 2017-11-08 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines the contributions of experts in the field to describe the behavior of various materials, micromechanisms involved during processing, and the optimization of cold-spray technology. It spans production, characterization, and applications including wear resistance, fatigue, life improvement, thermal barriers, crack repair, and biological applications. Cold spray is an innovative coating technology based on the kinetic energy gained by particles sprayed at very high pressures. While the technique was developed in the 1990s, industrial and scientific interest in this technology has grown vastly in the last ten years. Recently, many interesting applications have been associated with cold-sprayed coatings, including wear resistance, fatigue life improvement, thermal barriers, biological applications, and crack repair. However, many fundamental aspects require clarification and description.

Electrical & Electronics Abstracts

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Author :
Publisher :
ISBN 13 :
Total Pages : 2240 pages
Book Rating : 4.3/5 (243 download)

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Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ceramic Matrix Composites

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Author : Narottam P. Bansal
Publisher : John Wiley & Sons
ISBN 13 : 1118832892
Total Pages : 725 pages
Book Rating : 4.1/5 (188 download)

Book Synopsis Ceramic Matrix Composites by : Narottam P. Bansal

Download or read book Ceramic Matrix Composites written by Narottam P. Bansal and published by John Wiley & Sons. This book was released on 2014-10-27 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive source of information on various aspects of ceramic matrix composites (CMC). It covers ceramic and carbon fibers; the fiber-matrix interface; processing, properties and industrial applications of various CMC systems; architecture, mechanical behavior at room and elevated temperatures, environmental effects and protective coatings, foreign object damage, modeling, life prediction, integration and joining. Each chapter in the book is written by specialists and internationally renowned researchers in the field. This book will provide state-of-the-art information on different aspects of CMCs. The book will be directed to researchers working in industry, academia, and national laboratories with interest and professional competence on CMCs. The book will also be useful to senior year and graduate students pursuing degrees in ceramic science and engineering, materials science and engineering, aeronautical, mechanical, and civil or aerospace engineering. Presents recent advances, new approaches and discusses new issues in the field, such as foreign object damage, life predictions, multiscale modeling based on probabilistic approaches, etc. Caters to the increasing interest in the application of ceramic matrix composites (CMC) materials in areas as diverse as aerospace, transport, energy, nuclear, and environment. CMCs are considered ans enabling technology for advanced aeropropulsion, space propulsion, space power, aerospace vehicles, space structures, as well as nuclear and chemical industries. Offers detailed descriptions of ceramic and carbon fibers; fiber-matrix interface; processing, properties and industrial applications of various CMC systems; architecture, mechanical behavior at room and elevated temperatures, environmental effects and protective coatings, foreign object damage, modeling, life prediction, integration/joining.

Inorganic Nanosheets and Nanosheet-Based Materials

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Author : Teruyuki Nakato
Publisher : Springer
ISBN 13 : 4431564969
Total Pages : 540 pages
Book Rating : 4.4/5 (315 download)

Book Synopsis Inorganic Nanosheets and Nanosheet-Based Materials by : Teruyuki Nakato

Download or read book Inorganic Nanosheets and Nanosheet-Based Materials written by Teruyuki Nakato and published by Springer. This book was released on 2017-04-18 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on inorganic nanosheets, including various oxides, chalcogenides, and graphenes, that provide two-dimensional (2D) media to develop materials chemistry in broad fields such as electronics, photonics, environmental science, and biology. The application area of nanosheets and nanosheet-based materials covers the analytical, photochemical, optical, biological, energetic, and environmental research fields. All of these applications come from the low dimensionality of the nanosheets, which anisotropically regulate structures of solids, microspaces, and fluids. Understanding nanosheets from chemical, structural, and application aspects in relation to their "fully nanoscopic" characters will help materials scientists to develop novel advanced materials. This is the first book that accurately and concisely summarizes this field including exfoliation and intercalation chemistries of layered crystals. The book provides perspective on the materials chemistry of inorganic nanosheets. The first section describes fundamental aspects of nanosheets common to diverse applications: how unique structures and properties are obtained from nanosheets based on low dimensionality. The second section presents state-of-the-art descriptions of how the 2D nature of nanosheets is utilized in each application of the materials that are developed.

Ceramics and Composites Processing Methods

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Author : Narottam P. Bansal
Publisher : John Wiley & Sons
ISBN 13 : 0470553448
Total Pages : 598 pages
Book Rating : 4.4/5 (75 download)

Book Synopsis Ceramics and Composites Processing Methods by : Narottam P. Bansal

Download or read book Ceramics and Composites Processing Methods written by Narottam P. Bansal and published by John Wiley & Sons. This book was released on 2012-04-17 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the latest processing and fabrication methods There is increasing interest in the application of advanced ceramic materials in diverse areas such as transportation, energy, environmental protection and remediation, communications, health, and aerospace. This book guides readers through a broad selection of key processing techniques for ceramics and their composites, enabling them to manufacture ceramic products and components with the properties needed for various industrial applications. With chapters contributed by internationally recognized experts in the field of ceramics, the book includes traditional fabrication routes as well as new and emerging approaches in order to meet the increasing demand for more reliable ceramic materials. Ceramics and Composites Processing Methods is divided into three sections: * Densification, covering the fundamentals and practice of sintering, pulsed electric current sintering, and viscous phase silicate processing * Chemical Methods, examining colloidal methods, sol-gel, gel casting, polymer processing, chemical vapor deposition, chemical vapor infiltration, reactive melt infiltration, and combustion synthesis * Physical Methods, including directional solidification, solid free-form fabrication, microwave processing, electrophoretic deposition, and plasma spraying Each chapter focuses on a particular processing method or approach. Collectively, these chapters offer readers comprehensive, state-of-the-science information on the many approaches, techniques, and methods for the processing and fabrication of advanced ceramics and ceramic composites. With its coverage of the latest processing methods, Ceramics and Composites Processing Methods is recommended for researchers and students in ceramics, materials science, structural materials, biomedical engineering, and nanotechnology.

Bibliography of Lewis Research Center Technical Publications Announced in 1986

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Author :
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.:/5 (317 download)

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Download or read book Bibliography of Lewis Research Center Technical Publications Announced in 1986 written by and published by . This book was released on 1987 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Polymeric Materials with Antimicrobial Activity

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Author : Alexandra Muñoz-Bonilla
Publisher : Royal Society of Chemistry
ISBN 13 : 1849738076
Total Pages : 432 pages
Book Rating : 4.8/5 (497 download)

Book Synopsis Polymeric Materials with Antimicrobial Activity by : Alexandra Muñoz-Bonilla

Download or read book Polymeric Materials with Antimicrobial Activity written by Alexandra Muñoz-Bonilla and published by Royal Society of Chemistry. This book was released on 2014 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of different antimicrobial polymeric materials, their antimicrobial action modes and applications.