Download or read book Atmospheric Plasma Deposition of Nanometer Thick Anti fouling Coatings written by Charles Ezenwa Nwankire and published by . This book was released on 2010 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plasma Jet Deposited written by Charles Ezenwa Nwankire and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fouling which involves the accumulation of unwanted material on solid surfaces is a significant problem in a wide range of industries. This book investigates the application of the PlasmaStream atmospheric plasma jet system to deposit novel anti-fouling coatings. The book consists of eight chapters which could be categorised into three major sections. Firstly, the use of plasma polymerised primer to achieve up to 15-fold enhancement in the adhesion of anti-fouling silicone elastomers to steel is reported. Secondly, the anti-fouling performances of atmospheric plasma deposited superhydrophobic Nano coatings, evaluated both in the laboratory, and in industrial processes are detailed. A new ultrasonic abrasion technique, developed for evaluating the mechanical performance of these Nano coatings is also reported in this section. Finally, the physics and chemistry of the plasma jet system was studied using thermal, electrical and optical measurements. The book ends by summarising the main conclusions drawn from this study and recommends potential areas for future research."

Download or read book Comprehensive Materials Processing written by and published by Newnes. This book was released on 2014-04-07 with total page 5485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Materials Processing, Thirteen Volume Set provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing universe. It provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products. Assisting scientists and engineers in the selection, design, and use of materials, whether in the lab or in industry, it matches the adaptive complexity of emergent materials and processing technologies. Extensive traditional article-level academic discussion of core theories and applications is supplemented by applied case studies and advanced multimedia features. Coverage encompasses the general categories of solidification, powder, deposition, and deformation processing, and includes discussion on plant and tool design, analysis and characterization of processing techniques, high-temperatures studies, and the influence of process scale on component characteristics and behavior. Authored and reviewed by world-class academic and industrial specialists in each subject field Practical tools such as integrated case studies, user-defined process schemata, and multimedia modeling and functionality Maximizes research efficiency by collating the most important and established information in one place with integrated applets linking to relevant outside sources

Download or read book Deposition and Characterization of Nanometer Thick SiOx Coatings Using Atmospheric Presure PECVD Techniques written by Amsarani Ramamoorthy and published by . This book was released on 2009 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atmospheric Plasma Deposition of Transparent Coatings on Polymers written by Linying Cui and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric plasma enables plasma assisted coating deposition in ambient air at low temperature on large and/or complex geometry substrates. It has huge potential for coating synthesis and materials surface treatment at lower cost without the necessity of vacuum equipment, for applications of energy, display, aerospace, etc. In this dissertation, I present the results of atmospheric plasma deposition of transparent hard protective coatings on polymers. In order to deposit high quality coatings, we find that the interaction between atmospheric plasma, coating, and polymer substrate should all be optimized. Firstly, I studied the interaction between atmospheric plasma and polymer substrates. Atmospheric plasma was used to pretreat polycarbonate and stretched poly(methyl methacrylate) surfaces in order to enhance the adhesion of polymers to inorganic coatings. The treatment time and the chemical structure of the polymers were found to be important factors. For polycarbonate, a short treatment increased the adhesion energy by four times, while longer treatment resulted in low molecular-weight species formation and decreased adhesion. Next, I deposited dense silica coatings on polymers using atmospheric plasma. The coating deposition rate, molecular network structure, density, Young's modulus and adhesion to polymers exhibited a strong dependence on the precursor delivery temperature and rate, and the functionality and number of silicon atoms in the precursor molecules. The highest Young's modulus of the atmospheric plasma silica was four times higher than that of commercial sol-gel polysiloxane coatings. After that, I successfully deposited carbon-bridged hybrid organosilicate coating using atmospheric plasma, with the ethyl bridges incorporated in the silicate network under the ambient air environment. These coatings doubled the adhesion energy to polymers due to the molecular bridging effect, compared to commercial sol-gel polysiloxane coatings. Finally, I deposited a hard, adhesive, and highly transparent bilayer structure on polymers, with the bottom layer highly adhesive to polymer and the top layer hard to resist scratches. The method overcomes the challenge of fabricating coatings with high mechanical and interfacial properties in a one-step process. The bilayer structure exhibited ~ 100% transmittance in the visible wavelength range and no sacrifice of the hard or adhesive properties of the single sub-layers.

Download or read book Research Perspectives on Functional Micro and Nanoscale Coatings written by Zuzuarregui, Ana and published by IGI Global. This book was released on 2016-04-11 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Just as chemistry is a part of our daily lives, functional coatings can be found in almost every object, gadget or device you can see or touch. However, in the last 20 years the advances made in the preparation of different functional coatings with diverse compositions have allowed the development of nanoscale coatings that are more cost-effective and environmentally conscious than traditional coatings. Research Perspectives on Functional Micro- and Nanoscale Coatings highlights critical research on preparation methods, modification, organization, and utilization of functional coatings in micro, nano, and biotechnology. Emphasizing emerging developments and global research perspectives, this publication is a pivotal resource for engineers, researchers, and graduate-level students interested in learning about emerging developments in functional coatings and nanotechnology.

Download or read book Surface Energy written by Mahmood Aliofkhazraei and published by BoD – Books on Demand. This book was released on 2015-12-16 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The words hydro, phobic and philic are derived from Greek and they mean water, fear and adoration respectively. These words are being used to define the interaction of water and other materials. As an example, these words are being used in classification of liquids and solids based on their solubility in water, as well as classification of solid surfaces regarding to their wettability. A lot of surfaces in the nature have Superhydrophobic and self-cleaning properties. For example the wings of a butterfly, leaves of some plants, including cabbage and Indian Cress, have the mentioned properties. The best example is the LOTUS leaf. This book collects new developments in the science of surface energy.

Download or read book Atmospheric Plasma Deposition of Diamond like Carbon Coatings written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There is great demand for thin functional coatings in the semiconductor, optics, electronics, medical, automotive and aerospace industries [1-13]. As fabricated components become smaller and more complex, the properties of the materials' surface take on greater importance. Thin coatings play a key role in tailoring surfaces to give them the desired hardness, wear resistance, chemical inertness, and electrical characteristics. Diamond-like carbon (DLC) coatings possess an array of desirable properties, including outstanding abrasion and wear resistance, chemical inertness, hardness, a low coefficient of friction and exceptionally high dielectric strength [14-22]. Diamond-like carbon is considered to be an amorphous material, containing a mixture of sp2 and sp3 bonded carbon. Based on the percentage of sp3 carbon and the hydrogen content, four different types of DLC coatings have been identified: tetrahedral carbon (ta-C), hydrogenated amorphous carbon (a-C:H) hard, a-C:H soft, and hydrogenated tetrahedral carbon (ta-C:H) [20,24,25]. Possessing the highest hardness of 80 GPa, ta-C possesses an sp3 carbon content of 80 to 88u%, and no appreciable hydrogen content whereas a-C:H soft possesses a hardness of less than 10 GPa, contains an sp3 carbon content of 60% and a hydrogen content between 30 to 50%. Methods used to deposit DLC coatings include ion beam deposition, cathodic arc spray, pulsed laser ablation, argon ion sputtering, and plasma-enhanced chemical vapor deposition [73-83]. Researchers contend that several advantages exist when depositing DLC coatings in a low-pressure environment. For example, ion beam processes are widely utilized since the ion bombardment is thought to promote denser sp3-bonded carbon networks. Other processes, such as sputtering, are better suited for coating large parts [29,30,44]. However, the deposition of DLC in a vacuum system has several disadvantages, including high equipment cost and restrictions on the size and shape of material that may be treated. The deposition of DLC at atmospheric pressure has been demonstrated by several researchers. Izake, et al [53] and Novikov and Dymont [54] have demonstrated an electrochemical process that is carried out with organic compounds such as methanol and acetylene dissolved in ammonia. This process requires that the substrates be immersed in the liquid [53-54]. The atmospheric pressure deposition of DLC was also demonstrated by Kulik, et al. utilizing a plasma torch. However, this process requires operating temperatures in excess of 800 oC [55]. In this report, we investigate the deposition of diamond-like carbon films using a low temperature, atmospheric pressure plasma-enhanced chemical vapor deposition (PECVD) process. The films were characterized by solid-state carbon-13 nuclear magnetic resonance (13C NMR) and found to have a ratio of sp2 to sp3 carbon of 43 to 57%. The films were also tested for adhesion, coefficient of friction, and dielectric strength.

Download or read book Encyclopedia of Plasma Technology Two Volume Set written by J. Leon Shohet and published by CRC Press. This book was released on 2016-12-12 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical plasmas have a wide range of industrial applications. The Encyclopedia of Plasma Technology covers all aspects of plasma technology from the fundamentals to a range of applications across a large number of industries and disciplines. Topics covered include nanotechnology, solar cell technology, biomedical and clinical applications, electronic materials, sustainability, and clean technologies. The book bridges materials science, industrial chemistry, physics, and engineering, making it a must have for researchers in industry and academia, as well as those working on application-oriented plasma technologies. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]

Download or read book An Evaluation of Atmospheric pressure Plasma for the Cost Effective Deposition of Antireflection Coatings written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric-pressure plasma deposition (APPD) has previously been used to deposit various functional materials including polymeric surface modification layers, transparent conducting oxides, and photo catalytic materials. For many plasma polymerized coatings, reaction occurs via free radical mechanism where the high energy electrons from the plasma activate the olefinic carbon-carbon double bonds - a typical functional group in such precursors. The precursors for such systems are typically inexpensive and readily available and have been used in vacuum PECVD previously. The objectives are to investigate: (1) the effect of plasma power, gas composition and substrate temperature on the Si-based film properties using triethylsilane(TES) as the precursor; and (2) the chemical, mechanical, and optical properties of several experimental matrices based on Design of Experiment (DOE) principals. A simple APPD route has been utilized to deposit Si based films from an inexpensive precursor - Triethylsilane (TES). Preliminary results indicates formation of Si-C & Si-O and Si-O, Si-C & Si-N bonds with oxygen and nitrogen plasmas respectively. N2-O2 plasma showed mixed trend; however oxygen remains a significant portion of all films, despite attempts to minimize exposure to atmosphere. SiN, SiC, and SiO ratios can be modified by the reaction conditions resulting in differing film properties. SE studies revealed that films with SiN bond possess refractive index higher than coatings with Si-O/Si-C bonds. Variable angle reflectance studies showed that SiOCN coatings offer AR properties; however thickness and refractive index optimization of these coatings remains necessary for application as potential AR coatings.

Download or read book Atmospheric Pressure Plasma enhanced Chemical Vapor Deposition of Functional Coatings on Metals written by Angela Marie Ladwig and published by . This book was released on 2008 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corrosion Abstracts written by and published by . This book was released on 1986 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Indian Journal of Fibre Textile Research written by and published by . This book was released on 2006 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biosurfaces written by Kantesh Balani and published by John Wiley & Sons. This book was released on 2015-01-23 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ideal as a graduate textbook, this title is aimed at helping design effective biomaterials, taking into account the complex interactions that occur at the interface when a synthetic material is inserted into a living system. Surface reactivity, biochemistry, substrates, cleaning, preparation, and coatings are presented, with numerous case studies and applications throughout. Highlights include: Starts with concepts and works up to real-life applications such as implantable devices, medical devices, prosthetics, and drug delivery technology Addresses surface reactivity, requirements for surface coating, cleaning and preparation techniques, and characterization Discusses the biological response to coatings Addresses biomaterial-tissue interaction Incorporates nanomechanical properties and processing strategies

Download or read book Functional Polymer Films 2 Volume Set written by Wolfgang Knoll and published by John Wiley & Sons. This book was released on 2013-02-12 with total page 1107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very thin film materials have emerged as a highly interesting and useful quasi 2D-state functionality. They have given rise to numerous applications ranging from protective and smart coatings to electronics, sensors and display technology as well as serving biological, analytical and medical purposes. The tailoring of polymer film properties and functions has become a major research field. As opposed to the traditional treatise on polymer and resin-based coatings, this one-stop reference is the first to give readers a comprehensive view of the latest macromolecular and supramolecular film-based nanotechnology. Bringing together all the important facets and state-of-the-art research, the two well-structured volumes cover film assembly and depostion, functionality and patterning, and analysis and characterization. The result is an in-depth understanding of the phenomena, ordering, scale effects, fabrication, and analysis of polymer ultrathin films. This book will be a valuable addition for Materials Scientists, Polymer Chemists, Surface Scientists, Bioengineers, Coatings Specialists, Chemical Engineers, and Scientists working in this important research field and industry.

Download or read book New Technologies in Aquaculture written by Gavin Burnell and published by Elsevier. This book was released on 2009-07-30 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt: With wild stocks declining due to over-fishing, aquaculture will have a more significant role to play in meeting future demand for fresh fish. Developments in research continue to lead to improvements in aquaculture production systems, resulting in increased production efficiency, higher product quality for consumers and a more sustainable industry. New technologies in aquaculture reviews essential advances in these areas.Part one focuses on the genetic improvement of farmed species and control of reproduction, with chapters on genome-based technologies in aquaculture research, selective breeding and the production of single sex and sterile populations, among other topics. Parts two and three review key issues in health, diet and husbandry, such as the control of viral and parasitic diseases, diet and husbandry techniques to improve disease resistance, advances in diets for particular fish species and the impact of harmful algal bloom on shellfisheries aquaculture. Chapters in Parts three and four then examine the design of different aquaculture production systems, including offshore technologies, tank-based recirculating systems and ponds, and key environmental issues, such as the prediction and assessment of the impact of aquaculture. Concluding chapters focus on farming new species.With its well-known editors and distinguished international team of contributors, New technologies in aquaculture is an essential purchase for professionals and researchers in the aquaculture industry. - Reviews recent advances in improvements in aquaculture production - Focuses on the genetic improvement and reproduction of farmed species, including genome-based technologies - Discusses key health issues, including advances in disease diagnosis, vaccine development and other emerging methods to control pathogens in aquaculture

Download or read book CVD Polymers written by Karen K. Gleason and published by John Wiley & Sons. This book was released on 2015-04-01 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: The method of CVD (chemical vapor deposition) is a versatile technique to fabricate high-quality thin films and structured surfaces in the nanometer regime from the vapor phase. Already widely used for the deposition of inorganic materials in the semiconductor industry, CVD has become the method of choice in many applications to process polymers as well. This highly scalable technique allows for synthesizing high-purity, defect-free films and for systematically tuning their chemical, mechanical and physical properties. In addition, vapor phase processing is critical for the deposition of insoluble materials including fluoropolymers, electrically conductive polymers, and highly crosslinked organic networks. Furthermore, CVD enables the coating of substrates which would otherwise dissolve or swell upon exposure to solvents. The scope of the book encompasses CVD polymerization processes which directly translate the chemical mechanisms of traditional polymer synthesis and organic synthesis in homogeneous liquids into heterogeneous processes for the modification of solid surfaces. The book is structured into four parts, complemented by an introductory overview of the diverse process strategies for CVD of polymeric materials. The first part on the fundamentals of CVD polymers is followed by a detailed coverage of the materials chemistry of CVD polymers, including the main synthesis mechanisms and the resultant classes of materials. The third part focuses on the applications of these materials such as membrane modification and device fabrication. The final part discusses the potential for scale-up and commercialization of CVD polymers.