Download or read book The Effect of Interface Roughness and Oxide Film Thickness on the Inelastic Response of Thermal Barrier Coatings to Thermal Cycling written by and published by . This book was released on 1999 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Interface Roughness and Oxide Film Thickness on the Inelastic Response of Thermal Barrier Coatings to Thermal Cycling written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-17 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of interfacial roughness and oxide film thickness on thermally-induced stresses in plasma-sprayed thermal barrier coatings subjected to thermal cycling are investigated using the recently developed higher-order theory for functionally graded materials. The higher-order theory is shown to be a viable alternative to the finite-element approach, capable of modeling different interfacial roughness architectures in the presence of an aluminum oxide layer and capturing the high stress gradients that occur at the top coat/bond coat interface. The oxide layer thickness is demonstrated to have a substantially greater effect on the evolution of residual stresses than local variations in interfacial roughness. Further, the location of delamination initiation in the top coat is predicted to change with increasing oxide layer thickness. This result can be used to optimize the thickness of a pre-oxidized layer introduced at the top coat/bond coat interface in order to enhance TBC durability as suggested by some researchers. The results of our investigation also support a recently proposed hypothesis regarding delamination initiation and propagation in the presence of an evolving bond coat oxidation, while pointing to the importance of interfacial roughness details and specimen geometry in modeling this phenomenon.Pindera, Marek-Jerzy and Aboudi, Jacob and Arnold, Steven M.Glenn Research CenterINTERFACES; OXIDE FILMS; THICKNESS; SURFACE ROUGHNESS; TEMPERATURE EFFECTS; STRESS DISTRIBUTION; FILM THICKNESS; THERMAL CYCLING TESTS; THERMAL CONTROL COATINGS; SPRAYED COATINGS; SPECIMEN GEOMETRY; RESIDUAL STRESS; POSITION (LOCATION); PLASMA LAYERS; JOINTS (JUNCTIONS); FINITE ELEMENT METHOD; DURABILITY; ALUMINUM OXIDES
Download or read book Design of Thermal Barrier Coatings written by Mohit Gupta and published by Springer. This book was released on 2015-05-05 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book details the relationships between microstructure, interface roughness, and properties of thermal barrier coatings. The author proposes a method for the reduction of the thermal conductivity of the ceramic layer in order to increase the lifetime of thermal barrier coatings. He includes models for the optimization of ceramic layer microstructure and interface roughness.
Download or read book Advanced Ceramic Coatings and Interfaces V written by Dongming Zhu and published by John Wiley & Sons. This book was released on 2010-11-23 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume contains sixteen contributed papers from the symposium, with topics including advanced coating processing, advanced coating for wear, corrosion, and oxidation resistance, and thermal and mechanical properties, highlighting the state-of-the-art ceramic coatings technologies for various critical engineering applications.
Download or read book Thermal Spray 2007 Global Coating Solutions Proceedings of the 2007 International Thermal Spray Conference written by Edited by Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, Ghislain Montavon and published by ASM International. This book was released on with total page 1246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Micromechanics of Composite Materials written by Jacob Aboudi and published by Butterworth-Heinemann. This book was released on 2013 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: A Generalized Multiscale Analysis Approach brings together comprehensive background information on the multiscale nature of the composite, constituent material behaviour, damage models and key techniques for multiscale modelling, as well as presenting the findings and methods, developed over a lifetime's research, of three leading experts in the field. The unified approach presented in the book for conducting multiscale analysis and design of conventional and smart composite materials is also applicable for structures with complete linear and nonlinear material behavior, with numerous applications provided to illustrate use. Modeling composite behaviour is a key challenge in research and industry; when done efficiently and reliably it can save money, decrease time to market with new innovations and prevent component failure.
Download or read book Advances in Mathematical Modeling and Experimental Methods for Materials and Structures written by Rivka Gilat and published by Springer Science & Business Media. This book was released on 2009-12-18 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of cutting-edge papers, written by leading authors in honor of Professor Jacob Aboudi, covers a wide spectrum of topics in the field, presents both theoretical and experimental approaches, and suggests directions for possible future research.
Download or read book Fracture of Functionally Graded Materials written by G.H. Paulino and published by Elsevier. This book was released on 2002-10-23 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific research on functionally graded materials (FGM's) looks at functions of gradients in materials comprising thermodynamic, mechanical, chemical, optical, electromagnetic, and/or biological aspects. This collection of technical papers represents current research interests with regard to the fracture behaviour of FGM's. The papers provide a balance between theoretical, computational, and experimental techniques. It also indicates areas for increased development, such as constraint effects, full experimental characterization of engineering FGM's under static and dynamic loading, development of fracture criteria with predictive capability, multiphysics and multiscale failure considerations, and connection of research with industrial applications.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2000-07 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functionally Graded Materials in the 21st Century written by Kiyoshi Ichikawa and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: I am honored to chair this International Workshop on Functionally st Graded Materials in the 21 Century: A Workshop on Trends and Forecasts, and would like to first express my sincere gratitude to everyone participating. The Mechanical Engineering Laboratory and the Japan International Science and Technology Exchange Center (JISTEC) have co-organized this workshop with the sponsorship of the Science and Technology Agency of Japan and the cooperation of the Association of Mechanical Technology. This workshop is an international conference to focus on functionally graded materials and the aim is to provide an overview of the present global technical trends and the future development of functionally graded materials over the next 10 years. I am very happy to see many researchers meeting together here - including seven researchers invited from abroad. During the three-day oral sessions, 36 research reports will be presented, and I'm sure I'm not the only one who is very anxious to hear and participate in the upcoming interesting discussions. At present, the Mechanical Engineering Laboratory is conducting fundamental and ground-breaking research in such major areas as materials science and technology, bioengineering, information & system science, advanced machine technology, energy technology, manufacturing technology and robotics. In particular, we consider research on materials science and technology to have the highest priority for the 21st century. and since 1996 have participated in the US-Japan joint research project, Precompetitive Processing and Characterization of Functionally Graded Materials.
Download or read book Proceedings of the ASME Applied Mechanics Division written by and published by . This book was released on 2004 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Impact of Functionally Graded Cylinders Theory written by and published by . This book was released on 2001 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Spray Fundamentals written by Pierre L. Fauchais and published by Springer Science & Business Media. This book was released on 2014-01-24 with total page 1587 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with the fundamentals necessary for understanding thermal spray technology. Coverage includes in-depth discussions of various thermal spray processes, feedstock materials, particle-jet interactions, and associated yet very critical topics: diagnostics, current and emerging applications, surface science, and pre and post-treatment. This book will serve as an invaluable resource as a textbook for graduate courses in the field and as an exhaustive reference for professionals involved in thermal spray technology.
Download or read book Functionally Graded Materials in the 21st Century written by Kiyoshi Ichikawa and published by Springer Science & Business Media. This book was released on 2001 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In a Functionally Graded Material (FGM), which is a kind of advanced composite materials, the composition and structure change gradually over volume, resulting in corresponding changes in the properties of the material. By appyling the possibilities inherent in the concept of FGM, it is anticipated that materials will be improved and new functions for them will be also created. A comprehensive description of status of the art and perspectives, modeling and simulation, processing and system, characterization of properties as well as applications of FGMs is covered in this book."--Jacket.
Download or read book Metallurgical and Ceramic Protective Coatings written by K.H. Stern and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface engineering is an increasingly important field and consequently those involved need to be aware of the vast range of technologies available to modify surfaces. This text provides an up-to-date, authoritative exposition of the major condensed phase methods used for producing metallurgical and ceramic coatings. Each method is discussed thoroughly by an expert in that field. In each chapter the principle of the method, its range of applications and technical aspects involved are described. The book not only informs the reader about established technologies familiar only to specialists, but also details activity on the frontier of coating technology providing an insight into those potential technologies not yet fully developed but which should emerge in the near future.
