Download or read book Reflective Metal Coatings written by and published by . This book was released on 1960 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over seven hundred specimens of cold rolled or stainless steel have been coated with selected plastic formulae consisting of the general species polyurethanes, epoxies and silicones. Coating by the dip technique has been found most satisfactory. Of the 700 specimens over 150 have been coated with films of gold, copper, silver or aluminum and values of the relative reflectance, adherence and radiation absorption of the films have been measured. The relative reflectances, measured with a photometer over the wavelength region of approximately 0.5 to 2.5 microns and indicated as the relative reflectance of the specimen to that of a gold coated glass standard, have been shown to compare favorably with similar films respectively deposited on glass. The relative reflectance of silver films on polyurethane substrates was highest and the relative standing of the other metals in descending order was copper, gold and aluminum. The relative reflectance of a given metal varied with the type of plastic coating on which it was deposited in the descending order polyurethane, silicone and epoxy. Typical relative reflectance values found for gold on each material respectively were 0.96, 0.86 and 0.84; the value on glass was 0.995. Adherence measurements, made by a headed pin technique, revealed that the order of adherence was reversed from that of the reflectance, i.e., adherence values were in the descending order aluminum, gold, copper and silver. Adherence of the metal films to the epoxy, Maraset 617-C, was superior to that to polyurethane coatings. Films of aluminum passed the "scotch tape test" when deposited on epoxy or silicone coatings but did not perform as well on polyurethane. Gold films adhered well to the epoxy, Maraset 617-C. When the film adherence value was above approximately 550 psi the film normally would pass the scotch tape test.
Download or read book Metal Protective and Radiation Reflective Ceramic Coatings written by Clarence L. Hoenig and published by . This book was released on 1956 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Failure of Reflective Metal Coatings by Cracking written by R. R. Zito and published by . This book was released on 1982 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship between point defects and severe cracking of metal films is explored. Tests carried out on coatings of chromium, copper and nickel show that cracks radiate from pinholes in the metal film. This effect has been attributed to stress concentration in the neighborhood of the pinhole. It seems advisable to fill in as many pinholes as possible during deposition if cracking is to be avoided. Futhermore, reflective coatings intended for high temperature use should not be raised to the pinhole formation temperature or higher. Originator-supplied key words include: Severe cracking, Pinhole, Metal films, Reprints.
Download or read book Development of Polymeric Anti reflective Coatings for Polymer Substrates written by Lynley Joanne Crawford and published by . This book was released on 2009 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Understanding Lasers written by Jeff Hecht and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated to reflect advancements since the publication of the previous edition, Understanding Lasers: An Entry-Level Guide, 3rd Edition is an introduction to lasers and associated equipment. You need only a minimal background in algebra to understand the nontechnical language in this book, which is a practical, easy-to-follow guide for beginners. By studying the conceptual drawings, tables, and multiple-choice quizzes with answers provided at the back of the book you can understand applications of semiconductor lasers, solid-state lasers, and gas lasers for information processing, medicine, communications, industry, and military systems.
Download or read book Research on Ceramic Coatings with Controlled Reflective and Emissive Properties written by D. G. Burgess and published by . This book was released on 1960 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Coating Technology written by Philip Baumeister and published by SPIE Press. This book was released on 2004 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt: Baumeister organizes this book around the key subjects associated with functions of optical thin film performance, and provides a valuable resource in the field of thin film technology. The information is widely backed up with citations to patents and published literature. The author draws from 25 years of experience teaching classes at the UCLA Extension Program, and at companies worldwide to answer questions, such as: what are the conventions for a given analysis formalism? and, what other design approaches have been tried for this application?
Download or read book High Threshold HR highly Reflective Coatings at 1064 Nm written by and published by . This book was released on 1990 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have conducted as extensive series of laser damage measurements on highly reflective (HR) dielectric coatings which have yielded 1064-nm thresholds as high as 40 J/cm2 for 8- to 10-ns pulses at pulse-repetition frequencies (PRF) of 10 Hz. Moreover, by laser conditioning these coatings with subthreshold pulses, the thresholds of some coatings were raised to levels exceeding 70 J/cm2. These are the highest threshold dielectric HR coatings that we have tested in this regime. The coatings were originally developed to produce HR-overcoated metal mirrors for free-electron-laser (FEL) applications at high PRF. Our tests included coatings deposited on both dielectric substrates and molybdenum (Mo) substrates. In each category we also examined coatings with a pre-coat of Mo between the substrate and the HR stack. The improved dielectric HR stacks effectively shielded the Mo from the laser irradiation so that the thresholds of virtually all Mo samples exceeded levels of the best dielectric-enhanced and dielectric-HR-coated metal mirrors we have tested to date. In addition to the low PRF measurements, we also conducted 1064-nm damage tests at 6-kHz PRF using 65-ns pulses from the Kilroy damage test facility. The coatings survived thermal loading of fluences ranging from 2 to 10 J/cm2 with respective small spot sizes on the order of 1.2 to 0.3 mm (1/e2 diameter). 6 refs., 3 figs.
Download or read book Laser induced Damage in Optical Materials 1990 written by Harold Earl Bennett and published by ASTM International. This book was released on 1991 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of meeting -- Materials and measurements -- Surfaces and mirrors -- Thin films -- Fundamental mechanisms -- Presented by title only (papers not presented at conference).
Download or read book Reducing Solar Heat Gain Through Metal Roof Systems written by Shyh Yan Leong and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metal Finishing written by and published by . This book was released on 1913 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Infrared Antireflective and Protective Coatings written by Jiaqi Zhu and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-03-05 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive introduction on infrared anti-transparent materials and their applications in anti-reflective and protective coatings. Optical, mechanical and thermal properties and preparations of various kinds of films, such as amorphous diamond films, germanium carbide films, boron phosphide films, alumina films and yttrium oxide film are discussed in detail making it suitable for material scientists and industrial engineers.
Download or read book Optical Thin Films written by James D. Rancourt and published by SPIE Press. This book was released on 1996 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical, user-oriented reference for engineers who must incorporate and specify coatings for filters, antiglare effects, polarization, or other purposes in optical or electro-optical systems design. It focuses on preparation techniques and characteristics of commercially available products and provides information needed to determine what type of filter is needed to solve a particular problem, what its limitations are, and how to care for it.
Download or read book Reduction of Radiation Error of the Mercury in glass Thermometer by Means of Thin Reflective Metal Coatings written by Catalino Perez Arafiles and published by . This book was released on 1950 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Infrared Reflective Metal Oxide Sol Gel Coatings for Carbon Fiber Reinforced Composite Structures written by Brandon Demar Richard and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser induced damage threshold testing was done to investigate the dielectric breakdown and used to calculate surface temperatures.
Download or read book Energy Saving Coating Materials written by Goutam Kumar Dalapati and published by Elsevier. This book was released on 2020-05-14 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Saving Coating Materials: Design, Process, Implementation and Developments provides comprehensive information regarding recent materials advancements and design aspects and integration for infra-red radiation regulators, along with future developments of zero emission buildings. The key opportunities and challenges for the usage of existing heat regulation materials and their implementation for commercial aspects are explored. The fundamental interaction between electromagnetic waves and materials are discussed, along with materials synthesis, design and integration of coatings for smart window applications. This book presents recent developments of innovative technologies comprising energy saving materials and coatings which are key considerations for achieving vital energy saving milestones. Provides knowledge-based information on the optical properties of materials and their utility for solar energy harvesting and energy saving applications Discusses innovative coatings for smart windows applications, including the progressive development of radiative cooling and cool paint Previews future developments for the synthesis, design and integration of heat regulative materials
Download or read book Process for Fabricating High Reflectance low Stress Mo Si Multilayer Reflective Coatings written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A high reflectance-low stress Mo--Si multilayer reflective coating particularly useful for the extreme ultraviolet (EUV) wavelength region. While the multilayer reflective coating has particular application for EUV lithography, it has numerous other applications where high reflectance and low stress multilayer coatings are utilized. Multilayer coatings having high near-normal incidence reflectance (R.gtoreq.65%) and low residual stress (.ltoreq.100 MPa) have been produced using thermal and non-thermal approaches. The thermal approach involves heating the multilayer coating to a given temperature for a given time after deposition in order to induce structural changes in the multilayer coating that will have an overall "relaxation" effect without reducing the reflectance significantly.
