Download or read book The Properties of Hydroxyapatite and Titanium Oxide Coatings Obtained by Suspension Plasma Spraying written by Roman Jaworski and published by . This book was released on 2009 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: La thèse est consacrée, d'abord, au développement de la technologie de la projection plasma de suspension de matériaux céramiques : l'hydroxyapatite et l'oxyde de titane et, ensuite, à la caractérisation de propriétés de dépôts obtenus. Le développement de la technologie inclut l'optimisation de la formulation de poudre initiales et notamment la synthèse de l'hydroxyapatite pure. Le plan d'expérience était utilisé pour optimiser cette synthèse. Les suspensions de poudres qui ont été formulées à l'aide de l'eau, de l'alcool et de leurs mélanges sont par la suite injectées à l'aide de différents types d'injecteurs dans le jet du plasma à l'arc. La microstructure des dépôts obtenus a été caractérisée à l'aide de microscope électronique à transmission et à balayage. La microsonde électronique et la spectroscopie de Raman ont permis d'obtenir les profils de la composition chimique et notamment le rapport de Ca/P à l'intérieur de dépôts de l'hydroxyapatite le site riche en rutile et anatase respectivement. La diffraction par rayons X a permis de trouver les phases de décomposition de l'hydroxyapatite ainsi que le contenu de rutile et d'anatase dans ces dépôts. La composition de phases était liée par les équations de régression avec les paramètres opérationnels du procédé de la projection. Finalement, les propriétés électriques de dépôts en hydroxyapatite ont été testées à l'aide de la spectroscopie d'impédance et les propriétés mécaniques de dépôts d'oxyde de titane ont été testées à l'aide de test de rayure.
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 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 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 Bioceramic Coatings for Medical Implants written by Robert B. Heimann and published by John Wiley & Sons. This book was released on 2015-05-26 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the progress in recent years, this book provides in-depth information on the preparation, chemistry, and engineering of bioceramic coatings for medical implants. It is authored by two renowned experts with over 30 years of experience in industry and academia, who know the potentials and pitfalls of the techniques concerned. Following an introduction to the principles of biocompatibility, they present the structures and properties of various bioceramics from alumina to zirconia. The main part of the work focuses on coating technologies, such as chemical vapor deposition, sol-gel deposition and thermal spraying. There then follows a discussion of the major interactions of bioceramics with bone or tissue cells, complemented by an overview of the in-vitro testing methods of the biomineralization properties of bioceramics. The text is rounded off by chapters on the functionalization of bioceramic coatings and a look at future trends. As a result, the authors bring together all aspects of the latest techniques for designing, depositing, testing, and implementing improved and novel bioceramic coating compositions, providing a full yet concise overview for beginners and professionals.
Download or read book Microplasma Sprayed Hydroxyapatite Coatings written by Arjun Dey and published by CRC Press. This book was released on 2015-03-19 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been enormous growth in the use of medical implants. However, in the case of hip replacement, loosening of metallic prosthesis fixed with polymethylmethylacrylate bone cement has resulted in painstaking revision surgery, which is a major problem for the patient, surgeon, and biomedical technology itself. In fact, global recognition of thi
Download or read book Coatings for Biomedical Applications written by Mike Driver and published by Elsevier. This book was released on 2012-02-22 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The biomaterials sector is rapidly expanding and significant advances have been made in the technology of biomedical coatings and materials, which provide a means to improve the wear of joints, change the biological interaction between implant and host and combine the properties of various materials to improve device performance. Coatings for biomedical applications provides an extensive review of coating types and surface modifications for biomedical applications.The first part of the book explores a range of coating types and their biomedical applications. Chapters look at hydrophilic, mineral and pyrolytic carbon coatings in and ex vivo orthopaedic applications and finally at surface modification and preparation techniques. Part two presents case studies of orthopaedic and ophthalmic coatings, and biomedical applications including vascular stents, cardiopulomonary by-pass equipment and ventricular assist devices.With its clear structure and comprehensive review of research, Coatings for biomedical applications is a valuable resource to researchers, scientists and engineers in the biomedical industry. It will also benefit anyone studying or working within the biomedical sector, particularly those specialising in biomedical coatings. - Provides an extensive review of coating types and surface modifications for biomedical applications - Chapters look at hydrophilic coatings for biomedical applications in and ex vivo, mineral coatings for orthopaedic applications, pyrolytic carbon coating and other commonly-used biomedical coatings - Presents case studies of orthopaedic and ophthalmic coatings, and biomedical applications including vascular stents, cardiopulomonary by-pass equipment and ventricular assist devices
Download or read book Special Topics on Materials Science and Technology The Italian Panorama written by Alberto D'Amore and published by CRC Press. This book was released on 2009-12-21 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects selected papers presented and discussed during the 9th National Conference organized by the Italian Association of Materials Engineering, AIMAT from 2008 at Piano di Sorrento (Napoli, Italy). It gives a valuable representation of highlights of the research and development activities running in 21 Italian universities and resear
Download or read book Hydroxyapatite Coatings for Biomedical Applications written by Sam Zhang and published by CRC Press. This book was released on 2013-05-14 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydroxyapatite coatings are of great importance in the biological and biomedical coatings fields, especially in the current era of nanotechnology and bioapplications. With a bonelike structure that promotes osseointegration, hydroxyapatite coating can be applied to otherwise bioinactive implants to make their surface bioactive, thus achieving faster healing and recovery. In addition to applications in orthopedic and dental implants, this coating can also be used in drug delivery. Hydroxyapatite Coatings for Biomedical Applications explores developments in the processing and property characterization and applications of hydroxyapatite to provide timely information for active researchers and newcomers alike. In eight carefully reviewed chapters, hydroxyapatite experts from the United States, Japan, Singapore, and China present the latest on topics ranging from deposition processes to biomedical applications in implants and drug delivery. This book discusses: Magnetron sputtering and electrochemical deposition The modification of hydroxyapatite properties by sol–gel deposition to incorporate other elements found in natural bones, such as zinc, magnesium, and fluorine The use of pure hydroxyapatite in drug delivery applications The growth or self-assembly of hydroxyapatite on shape memory alloy Hydroxyapatite composite coatings—with carbon nanotubes, titanium dioxide (TiO2), and others—on the titanium alloy Offering valuable insights and a wealth of data, including numerous tables and figures, this is a rich source of information for research on hydroxyapatite coatings. Each chapter also covers material that provides an accessible stepping stone for those who are new to the field.
Download or read book Study on the Electrical and Mechanical Properties of Plasma Sprayed Titanium Oxide Coatings written by Robert Fontarnau Lynd and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Titanium oxide is a material that changes its physical properties due to the formation of oxygen vacancies in the crystal lattice. This phenomenon is especially observed in the plasma spray process. The lattice defects in the consolidated coating material strongly determine its mechanical (tribological) and electrical properties. The crystalline phases that are formed in the coating (anatase, rutile) have also to be taken into account. In his study the electrical properties of plasma sprayed titanium oxides will be investigated. The influence of plasma spray parameters will be studied by means of DOE, two different plasma spray systems will be used: A standard DC single cathode torch (F6, GTV) and a three cathode torch (type MAGNUM, GTV). The coatings will be characterized using standard analytical tools (XRD, SEM, LM, microhardness, electrical conductivity etc.) A potential industrial application of titanium oxide coating is its use as an electrical conductive material applied on glass ceramic substrates. Some basic parameter studies considering torch kinematic will be performed to improve mechanical stability of such coatings on the glass ceramic substrate. Another interesting approach is the mixing of titanium oxide with a Ni-CrAIY powder to form a composite powder. The idea is to increase the electrical conductivity, but keep the thermomechanical properties of the oxide material.
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 Biomanufacturing written by Chander Prakash and published by Springer. This book was released on 2019-03-20 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current Trends in Biomanufacturing focuses on cutting-edge research regarding the design, fabrication, assembly, and measurement of bio-elements into structures, devices, and systems. The field of biomaterial and biomanufacturing is growing exponentially in order to meet the increasing demands of for artificial joints, organs and bone-fixation devices. Rapid advances in the biological sciences and engineering are leading to newer and viable resources, methods and techniques that may providing better quality of life and more affordable health care services. The book covers the broad aspects of biomanufacturing, including: synthesis of biomaterials; implant coating techniques; spark plasma sintering; microwave processing; and cladding, powder metallurgy and electrospinning. The contributors illustrate the recent trends of biomanufacturing, highlighting the important aspects of biomaterial synthesis, and their use as feedstock of fabrication technologies and their characterization, along with their clinical practices. Current Trends in Biomanufacturing updates researchers and scientists the novelties and techniques of the field, as it summarises numerous aspects of biomanufacturing, including synthesis of biomaterials, fabrication of biomedical structures, their in-vivo/ in-vitro, mechanical analysis and associated ISO standards.
Download or read book Calcium Orthophosphates written by Sergey V. Dorozhkin and published by CRC Press. This book was released on 2012-06-04 with total page 863 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to a great chemical similarity with the biological calcified tissues, many calcium orthophosphates possess remarkable biocompatibility and bioactivity. Materials scientists use this property extensively to construct artificial bone grafts that are either entirely made of or only surface-coated with the biologically relevant calcium orthophospha
Download or read book Bioceramic Coatings for Medical Implants written by Robert B. Heimann and published by John Wiley & Sons. This book was released on 2015-02-09 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the progress in recent years, this book provides in-depth information on the preparation, chemistry, and engineering of bioceramic coatings for medical implants. It is authored by two renowned experts with over 30 years of experience in industry and academia, who know the potentials and pitfalls of the techniques concerned. Following an introduction to the principles of biocompatibility, they present the structures and properties of various bioceramics from alumina to zirconia. The main part of the work focuses on coating technologies, such as chemical vapor deposition, sol-gel deposition and thermal spraying. There then follows a discussion of the major interactions of bioceramics with bone or tissue cells, complemented by an overview of the in-vitro testing methods of the biomineralization properties of bioceramics. The text is rounded off by chapters on the functionalization of bioceramic coatings and a look at future trends. As a result, the authors bring together all aspects of the latest techniques for designing, depositing, testing, and implementing improved and novel bioceramic coating compositions, providing a full yet concise overview for beginners and professionals.
Download or read book Bond Strength and Dissolution Properties of Hydroxyapatite Implant Coatings by Plasma Spraying and Pulsed Laser Deposition written by Asvin Vasanthan and published by . This book was released on 2005 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Thermal Spray Technology written by Joseph R. Davis and published by ASM International. This book was released on 2004-01-01 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference covers principles, processes, types of coatings, applications, performance, and testing and analysis of thermal spray technology. It will serve as an introduction and guide for those new to thermal spray, and as a reference for specifiers and users of thermal spray coatings and thermal spray experts. Coverage encompasses basics of th
