Download or read book Suspension Plasma Spraying of Functional Gradient Coatings written by Rafal Tomaszek and published by . This book was released on 2006 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis aims at development of titanium oxide and hydroxyapatite coatings with the use of suspension plasma spraying. This new technique enables obtaining the coatings with very fine crystal grains being smaller than 100 nm (nanostructured). To attain this objective, two type of suspension feeder were developed: (i) with a pressurized vessel and, (ii) with two peristaltic pumps. The suspension were formulated using very fine pigment, surfactant and distilled water. The spraying process was optimized to obtain continuous coatings having thickness ranging from 5 to 25 μm. The coatings microstructure was tested using X-ray photelectrons spectroscopy, Raman spectroscopy, Xray diffraction, optical and scanning electron microscope. Electron emission from the surface of titania sprayed coatings was also tested and explained by the microstructure. This coating were prepared with a gradient of crystal grain size by spraying initially coarse powder deposit and, on the top, suspension sprayed one: Hydroxyapatite deposits were sprayed staring from suspension formulated from crushing of spray-dried powder. This coatings were realized using a gradient of chemical composition by simultaneous deposition of titania suspension. Titania coatings were chosen in order to improve adhesion to metallic titanium substrate.

Download or read book Plasma Spray Coating written by Robert B. Heimann and published by John Wiley & Sons. This book was released on 2008-07-11 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades, thermal spraying of metallic, ceramic and composite coatings has emerged as a powerful tool for surface engineering, with many new applications and markets continually being developed. This book will help materials scientists and engineers to choose the most appropriate combination of materials, equipment, and operation parameters for the design of high-performance coatings with new functional properties and improved service life. Includes: * a thorough treatment of the fundamental physical processes governing plasma spray technology; * a critical assessment of advantages and disadvantages of the method compared with other suface coating techniques; * a discussion of basic equipment requirements and limitations; * case studies and typical applications to solve industrial problems. Plasma-Spray Coating offers a stimulating combination of basic concepts and practical applications. Materials scientists and engineers, as well as graduate students will find this book of enormous value.

Download or read book Processing of Functionally Gradient Ni PSZ Coatings by Low Pressure Plasma Spraying written by Nicholas Hill and published by . This book was released on 1996 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Functionally Graded Materials FGMs written by Pulak M. Pandey and published by CRC Press. This book was released on 2021-09-15 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: The science and study of functionally graded materials (FGMs) have intrigued researchers over the last few decades. Their application has the capability to produce parts with unmatched properties which are virtually impossible to obtain via conventional material routes. This book addresses various FGM aspects and provides a relevant, high-quality, and comprehensive data source. The book covers trends, process classification on various bases, physical processes involved, structure, properties, applications, advantages, and limitations. Emerging trends in the field are discussed in detail and advancements are thoroughly reviewed and presented to broaden the spectrum of FGM applications. This reference book will be of interest to scholars, researchers, academicians, industry practitioners, government labs, libraries, and anyone interested in the area of materials engineering.

Download or read book Advanced Plasma Spray Applications written by Hamidreza Salimi Jazi and published by BoD – Books on Demand. This book was released on 2012-03-21 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, plasma spray has been received a large number of attentions for various type of applications due to the nature of the plasma plume and deposition structure. The plasma gas generated by the arc, consists of free electrons, ionized atoms, some neutral atoms, and undissociated diatomic molecules. The temperature of the core of the plasma jet may exceed up to 30,000 K. Gas velocity in the plasma spray torch can be varied from subsonic to supersonic using converging-diverging nozzles. Heat transfer in the plasma jet is primarily the result of the recombination of the ions and re-association of atoms in diatomic gases on the powder surfaces and absorption of radiation. Taking advantages of the plasma plume atmosphere, plasma spray can be used for surface modification and treatment, especially for activation of polymer surfaces. I addition, plasma spray can be used to deposit nanostructures as well as advanced coating structures for new applications in wear and corrosion resistance. Some state-of-the-art studies of advanced applications of plasma spraying such as nanostructure coatings, surface modifications, biomaterial deposition, and anti wear and corrosion coatings are presented in this book.

Download or read book Suspension Plasma Spray Coating of Advanced Ceramics written by Navid Hosseinabadi and published by CRC Press. This book was released on 2022-09-01 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Suspension Plasma Spray Coating of Advanced Ceramics presents the significance of suspension plasma spray coating of ceramics for thermal barrier applications. It covers suspension formation and optimization in different oxide and non-oxide mixtures and ceramic matrix composites (CMC) of sub-micron and nanosized powders. Enabling readers to understand the importance of thermally inert and insulating ceramic coatings on metals and alloys, the book explains how to improve their utilization in applications, such as turbine blades or diesel engines, gas turbines, and coating methods. This book also discusses advanced topics on nanomaterials coatings in monolithic or composite forms as thermal barriers through organic and non-organic based suspensions using high energy plasma spray methods. Features: Presents significant thermal barrier properties using high energy plasma spray methods. Explores advanced surface modification techniques. Covers monolithic, composite, and solid solution ceramics coating. Discusses high precision coating methods. The book will be useful for professional engineers working in surface modification and researchers studying materials science and engineering, corrosion, and abrasion.

Download or read book Thermal Spray Fundamentals written by Maher I. Boulos and published by Springer Nature. This book was released on 2021-10-19 with total page 1147 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised, industry-standard resource offers practical details on every aspect of the fundamentals necessary for understanding thermal spray technology, from powder all the way to the final part. The second edition is presented in a reader-friendly format that is split into four parts. Part I presents a review of thermal spray coating and its position in the broad field of surface modification technologies. Highlights of combustion and thermal plasmas are given with an expanded treatment of in-flight plasma-particle interactions. The second and third parts deal respectively with an updated presentation of thermal spray technologies and coating formation, including solution and suspension plasma spraying. The last part of the book includes a comparative analysis of different thermal spray processes, which is essential for the optimal selection of the appropriate thermal spray process in a given application. Coverage of system integration has been expanded with the addition of a detailed discussion of online instrumentation and process diagnostics and numerous examples of industrial scale spray booth designs. Attention is also given to coating finishing and health and safety issues. An extensive review is presented of thermal spray applications grouped in terms of process objectives and present use in different industrial sectors. 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 the thermal spray field.

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 The Science and Engineering of Thermal Spray Coatings written by Lech Pawlowski and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively updated and revised version builds on the success of the first edition featuring new discoveries in powder technology, spraying techniques, new coatings applications and testing techniques for coatings -- Many new spray techniques are considered that did not exist when the first edition was published! The book begins with coverage of materials used, pre-spray treatment, and the techniques used. It then leads into the physics and chemistry of spraying and discusses coatings build-up. Characterization methods and the properties of the applied coatings are presented, and the book concludes with a lengthy chapters on thermal spray applications covers such areas as the aeronautics and space, automobiles, ceramics, chemicals, civil engineering, decorative coatings, electronics, energy generation and transport, iron and steel, medicine, mining and the nuclear industries.

Download or read book Handbook of Thermal Science and Engineering written by and published by Springer. This book was released on 2018-07-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook provides researchers, faculty, design engineers in industrial R&D, and practicing engineers in the field concise treatments of advanced and more-recently established topics in thermal science and engineering, with an important emphasis on micro- and nanosystems, not covered in earlier references on applied thermal science, heat transfer or relevant aspects of mechanical/chemical engineering. Major sections address new developments in heat transfer, transport phenomena, single- and multiphase flows with energy transfer, thermal-bioengineering, thermal radiation, combined mode heat transfer, coupled heat and mass transfer, and energy systems. Energy transport at the macro-scale and micro/nano-scales is also included. The internationally recognized team of authors adopt a consistent and systematic approach and writing style, including ample cross reference among topics, offering readers a user-friendly knowledgebase greater than the sum of its parts, perfect for frequent consultation. The Handbook of Thermal Science and Engineering is ideal for academic and professional readers in the traditional and emerging areas of mechanical engineering, chemical engineering, aerospace engineering, bioengineering, electronics fabrication, energy, and manufacturing concerned with the influence thermal phenomena.

Download or read book Three Dimensional Simulation of Coating Build up In Suspension Plasma Spray Process written by Siavash Ghafouri Azar and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal spray technology is widely used in many industries. The most important purposes of applying coatings are improving functional performance by the ability to work at higher temperature, increasing component life by protecting the surface against degradation, and repairing worn parts without changing the properties of the main part. Nano-structured coatings, which show improved characteristics as compared to conventional ones, have been extensively studied over the recent years. Suspension plasma spray (SPS) is a recently developed process that can produce nano-structured coatings on large surfaces. The technique involves spraying fine molten particles that solidify rapidly in contact with the substrate with grain size less than 100 nm. A suspension of sub-micron or nano-sized particles in a liquid carrier (water and ethanol) is injected in and atomized by the high speed high temperature plasma plume in a DC plasma spray torch. The SPS technique allows us to deposit micron-size particles more efficiently and creates fine grains, and small-sized pore microstructure. The microstructure of SPS coatings results from a series of complicated phenomena influenced by several parameters. Thus, depending on the suspension interaction with the plasma plume, powder types, solid concentration in suspension, substrate preparation method, plasma spray setup, spray distance, powder feed rate, etc. various microstructures can be obtained. Therefore, it is of great interest to predict the SPS coating microstructure within the context of particle conditions upon impact i.e. trajectory, size, and velocity. To understand how the microstructure of SPS coatings relates to particle conditions and predict coating attributes such as porosity, columnar structure, thickness and surface roughness, a three-dimensional predictive model for coating buildup on a substrate has been developed. In this model, the impact properties of each particle that comprise size, velocity, temperature, as well as particle's location near substrate are obtained from a computational fluid dynamics (CFD) model simulating the SPS process using a commercial Oerlikon Metco 3MB plasma torch. Subsequently, the trajectory of each particle close to the substrate surface is calculated to determine its final impact location on the substrate or previously deposited particles. It is assumed that particles stick at the impact location according to some prescribed scenarios. The coating structure is specified using a variable f(i,j,k) which is zero when the cell is empty and equals unity when the cell is filled with the spray material. The numerical results can capture the columnar structures observed in SPS coatings due to the shadow effect.

Download or read book Suspension Plasma Spray Coating of Advanced Ceramics written by Navid Hosseinabadi and published by CRC Press. This book was released on 2022-09-01 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Suspension Plasma Spray Coating of Advanced Ceramics presents the significance of suspension plasma spray coating of ceramics for thermal barrier applications. It covers suspension formation and optimization in different oxide and non-oxide mixtures and ceramic matrix composites (CMC) of sub-micron and nanosized powders. Enabling readers to understand the importance of thermally inert and insulating ceramic coatings on metals and alloys, the book explains how to improve their utilization in applications, such as turbine blades or diesel engines, gas turbines, and coating methods. This book also discusses advanced topics on nanomaterials coatings in monolithic or composite forms as thermal barriers through organic and non-organic based suspensions using high energy plasma spray methods. Features: Presents significant thermal barrier properties using high energy plasma spray methods. Explores advanced surface modification techniques. Covers monolithic, composite, and solid solution ceramics coating. Discusses high precision coating methods. The book will be useful for professional engineers working in surface modification and researchers studying materials science and engineering, corrosion, and abrasion.

Download or read book Surface Coating and Modification of Metallic Biomaterials written by Cuie Wen and published by Woodhead Publishing. This book was released on 2015-03-31 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite advances in alternative materials, metals are still the biomaterial of choice for a number of clinical applications such as dental, orthopedic and cardiac implants. However, there are a number of intrinsic problems associated with implanting metal in the biological environment, such as wear, corrosion, biocompatibility and toxicity, which must be addressed. Modern technology has enabled scientists to modify metal surfaces or apply special coatings to metals to improve their performance safety. Surface Coating and Modification of Metallic Biomaterials will discuss the most important modification techniques and coatings for metals, first covering the fundamentals of metals as a biomaterial and then exploring surface modification techniques and coatings. - An expansive overview of surface modification techniques for biomedical use - In-depth exploration of issues arising from metal biomaterial use - Includes examples of applications in a clinical setting

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.

Download or read book Layered Functional Gradient Ceramics and Thermal Barrier Coatings written by Marc J. Anglada and published by Trans Tech Publications. This book was released on 2007 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This special-topic collection is intended to showcase the very latest knowhow concerning the design, fabrication and reliability of layered ceramics, ceramic coatings and functionality graded ceramics. It presents an overview of the fundamentals involved in this area, as well as an insight into the critical isssues and future perspectives touching these materials. The 30 contributions cover the pivotal topics of the: design and processing of multilayers; functionally graded materials; structural integrity of multilayers; thermal barrier coatings: processing and lifetime assessment; fatigue, damping and high-temperature behaviour of coatings and multilayers. Truly essential reading.

Download or read book Bioimplants Manufacturing written by Abhilash P M and published by CRC Press. This book was released on 2024-09-04 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: The text covers fundamentals and technological advancements in processing, post-processing, and surface engineering of bioimplant materials. It further discusses important topics such as the additive manufacturing of bioimplants, the tribological performance of bioimplants, and the hybrid and non-traditional manufacturing of bioimplants materials. The text also presents the latest advancements in intelligent bioimplant manufacturing using artificial intelligence and machine learning. This book: Offers an in-depth understanding of the fundamentals, types, materials and applications of bioimplants Highlights the effect of processing on microstructure, biocompatibility, and mechanical behavior of bioimplants Investigates the surface modification methods and tribological performance of bioimplants Discusses additive manufacturing and non-traditional manufacturing techniques such as electrical discharge machining and electrochemical machining of bioimplants materials Covers smart technologies such as artificial intelligence and machine learning-based intelligent implant manufacturing for Industry 4.0 It is primarily written for senior undergraduate and graduate students and academic researchers in the fields of mechanical engineering, biomedical engineering, production engineering, industrial engineering, aerospace engineering, and manufacturing engineering.

Download or read book Industrial Chemistry of Oxides for Emerging Applications written by Lech Pawlowski and published by John Wiley & Sons. This book was released on 2018-03-14 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Valuable insights into the extraction, production, and properties of a large number of natural and synthetic oxides utilized in applications worldwide from ceramics, electronic components, and coatings This handbook describes each of the major oxides chronologically—starting from the processes of extraction of ores containing oxides, their purification and transformations into pure alloyed powders, and their appropriate characterization up to the processes of formation of 2D films by such methods as PVD, CVD, and coatings by thermal spraying or complicated 3D objects by sintering and rapid prototyping. The selection of oxides has been guided by the current context of industrial applications. An important point that is considered in the book concerns the strategic aspects of oxides. Some oxides (e.g. rare earth ones) become more expensive due to the growing demand for them, others, because of the strategic importance of countries producing raw materials and the countries that are using them. Industrial Chemistry of Oxides for Emerging Applications provides readers with everything they need to know in 7 chapters that cover: technical and economical importance of oxides in present and future; fundamentals of oxides manufacturing; extraction, properties, and applications of Al2O3; extraction, properties, and applications of ZrO2; synthesis, properties, and applications of YBaCu2O7x; extraction, properties, and applications of TiO2; and synthesis, properties, and application of hydroxyapatite. Presents the extraction, production, and properties of a large fraction of oxides applications worldwide, both natural as well as synthetic multi‐oxides Covers a very important segment of many industrial processes, such as refractories and piezoelectric oxides—both applications constituting very large market segments Developed from a lecture course given by the authors for over a decade Industrial Chemistry of Oxides for Emerging Applications is an excellent text for university professors and teachers, and graduate and postgraduate students with a solid background in physics and chemistry.