Download or read book Thermal Conductivity and Elastic Modulus Evolution of Thermal Barrier Coatings Under High Heat Flux Conditions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser high heat flux test approaches have been established to obtain critical properties of ceramic thermal barrier coatings (TBCs) under near-realistic temperature and thermal gradients that may he encountered in advanced engine systems. Thermal conductivity change kinetics of a thin ceramic coating were continuously monitored in real time at various test temperatures. A significant thermal conductivity increase was observed during the laser simulated engine heat flux tests. For a 0.25 mm thick ZrO2-8%Y2O3 coating system, the overall thermal conductivity increased from the initial value of 1.0 W/m-K to 1. 15 W/m-K, 1. 19 W/m-K and 1.5 W/m-K after 30 hour testing at surface temperatures of 990C, 1100C, and 1320C. respectively. Hardness and modulus gradients across a 1.5 mm thick TBC system were also determined as a function of laser testing time using the laser sintering/creep and micro-indentation techniques. The coating Knoop hardness values increased from the initial hardness value of 4 GPa to 5 GPa near the ceramic/bond coat interface, and to 7.5 GPa at the ceramic coating surface after 120 hour testing. The ceramic surface modulus increased from an initial value of about 70 GPa to a final value of 125 GPa. The increase in thermal conductivity and the evolution of significant hardness and modulus gradients in the TBC systems are attributed to sintering-induced micro-porosity gradients under the laser-imposed high thermal gradient conditions. The test techniques provide a viable means for obtaining coating data for use in design, development, stress modeling, and life prediction for various thermal barrier coating applications. Zhu, Dongming and Miller, Robert A. Glenn Research Center NASA/TM-1999-209069, NAS 1.15:209069, E-11625

Download or read book Thermal Conductivity and Elastic Modulus Evolution of Thermal Barrier Coatings Under High Heat Flux Conditions written by and published by . This book was released on 1999 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Conductivity 27 written by Hsin Wang and published by DEStech Publications, Inc. This book was released on 2005 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: In additional to traditional topics such as thermal insulation, instrumentation and standards, the conference highlighted research in carbon nanotubes, nanomaterials, novel thin films, thermoelectric and composites.

Download or read book Thermal Barrier Coatings written by Hongbo Guo and published by Woodhead Publishing. This book was released on 2023-01-18 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Barrier Coatings, Second Edition plays a critical role in counteracting the effects of corrosion and degradation of exposed materials in high-temperature environments such as gas turbine and aero-engines. This updated edition reviews recent advances in the processing and performance of thermal barrier coatings, as well as their failure mechanisms. Novel technologies for the manufacturing of thermal barrier coatings (TBCs) such as plasma spray-physical vapor deposition and suspension plasma spray, are covered, as well as severe degradation of TBCs caused by CMAS attack. In addition to discussions of new materials and technologies, an outlook about next generation TBCs, including T/EBCs is discussed.This edition will provide the fundamental science and engineering of thermal barrier coatings for researchers in the field of TBCs, as well as students looking for a tutorial. - Includes coverage of emerging materials, such as rare-earth doped ceramics - Presents the latest on plasma spray-physical vapor deposition and suspension (solution precursor) - Discusses the degradation of TBCs caused by CMAS attack and its protection - Looks at thermally environmental barrier coatings, interdiffusion and diffusion barrier

Download or read book Progress in Thermal Barrier Coatings written by ACerS (American Ceramics Society, The) and published by John Wiley & Sons. This book was released on 2009-06-15 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edition of the Progress in Ceramic Technology series compiles articles published on thermal barrier coatings (TBCs) by The American Ceramic Society (ACerS). It collects in one resource the current research papers on materials-related aspects of thermal barrier coatings and associated technologies. Logically organized and carefully selected, the papers in this edition divide into six categories: Applications Material Improvements and Novel Compositions Developments in Processing Mechanical Properties Thermal Properties Citations follow each title in the table of contents, making this a key resource for professionals and academia.

Download or read book 24th Annual Conference on Composites Advanced Ceramics Materials and Structures B Volume 21 Issue 4 written by Todd Jessen and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. 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.

Download or read book Research Technology 1999 written by and published by DIANE Publishing. This book was released on with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 25th Annual Conference on Composites Advanced Ceramics Materials and Structures B Volume 22 Issue 4 written by Mrityunjay Singh and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 657 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. 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.

Download or read book Thermal Conductivity of Ceramic Thermal Barrier and Environmental Barrier Coating Materials written by and published by . This book was released on 2001 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Conductivity of EB PVD Thermal Barrier Coatings Evaluated by a Steady State Laser Heat Flux Technique written by and published by . This book was released on 2000 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thermal conductivity of electron beam-physical vapor deposited (EB-PVD) Zr02-8wt%Y2O3 thermal barrier coatings was determined by a steady-state heat flux laser technique. Thermal conductivity change kinetics of the EB-PVD ceramic coatings were also obtained in real time, at high temperatures, under the laser high heat flux, long term test conditions. The thermal conductivity increase due to micro-pore sintering and the decrease due to coating micro-delaminations in the EB-PVD coatings were evaluated for grooved and non-grooved EB-PVD coating systems under isothermal and thermal cycling conditions. The coating failure modes under the high heat flux test conditions were also investigated. The test technique provides a viable means for obtaining coating thermal conductivity data for use in design, development, and life prediction for engine applications.

Download or read book 26th Annual Conference on Composites Advanced Ceramics Materials and Structures B Volume 23 Issue 4 written by Hua-Tay Lin and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 901 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. 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.

Download or read book Mechanical Properties and Performance of Engineering Ceramics and Composites VII Volume 33 Issue 2 written by Dileep Singh and published by John Wiley & Sons. This book was released on 2012-11-27 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of 33 papers deals with mechanical behaviors associated with systems ranging from diamond reinforced silicon carbide to rare earth pyrosilicates. Presented at The Mechanical Behavior and Performance of Ceramics & Composites Symposium in January 2012 during the 36th International Conference on Advanced Ceramics and Composites (ICACC), it offers researchers from around the world the opportunity to explore new and emerging issues in all aspects of the field.

Download or read book Research Technology 2001 written by and published by DIANE Publishing. This book was released on with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Barrier Coatings for Advanced Gas Turbine and Diesel Engines written by and published by . This book was released on 1999 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Technology 2003 written by and published by DIANE Publishing. This book was released on with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Ceramic Matrix Composites IX written by Narottam P. Bansal and published by John Wiley & Sons. This book was released on 2012-04-11 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic-matrix composites are strong, tough, environmentally stable, light in weight, and have the ability to withstand high operating temperatures. These characteristics make them viable candidate materials for high temperature structural applications. Twenty three are included in this volume describing the latest developments in the areas of ceramic fibers, processing and fabrication, oxide and non-oxide composites, carbon-carbon composites, geopolymer composites, mechanical behavior, corrosion and environmental effects, characterization, fiber-matrix interface, design of composites, and thermal/environmental barrier coatings. Proceedings of the symposium held at the 105th Annual Meeting of The American Ceramic Society, April 27-30, in Nashville, Tennessee; Ceramic Transactions, Volume 153.

Download or read book Handbook of Research on Tribology in Coatings and Surface Treatment written by Pakseresht, Amirhossein and published by IGI Global. This book was released on 2022-03-25 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances are continuously being made in applying the coatings and surface treatments by different techniques to reduce the damages from tribology. Engineers need more detailed information to compare the capability of each coating process in wear resistant and lubrication applications. It is also important to focus on the concepts of tribology in various applications such as the manufacturing process, bio implants, machine elements, and corrosive environments. The need for a comprehensive resource addressing these findings in order to improve wear resistance is unavoidable. The Handbook of Research on Tribology in Coatings and Surface Treatment evaluates the latest advances the fabrication of wear-resistant and lubricant coatings by different techniques and investigates wear-resistant coatings and surface treatments in various applications such as the automobile industry. Covering a wide range of topics such as lubricant coatings and wearable electronic devices, it is ideal for engineers, industry professionals, researchers, academicians, scholars, practitioners, instructors, and students.