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ultraviolet radiation

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Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005717
EISBN: 978-1-62708-171-9
... Abstract The hazards associated with thermal spray deposition processes include ultraviolet and infrared radiation; acoustical noise; and by-product production in the forms of nitrous oxides, ozone, fumes, and dust. The most important consideration in health and safety is to use the engineered...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009084
EISBN: 978-1-62708-177-1
... in Aerospace Epoxy Composites , J. Appl. Polym. Sci. , Vol 100 , 2006 , p 2210 – 2219 10.1002/app.23692 8. “Ultraviolet Radiation from Fluorescent Lamps,” Lamp Section, National Electrical Manufacturers Association , Rosslyn, VA , May 4 , 1999 9. Patkus B.L. , Technical leaflet...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001487
EISBN: 978-1-62708-173-3
... screens between work stations Wall Reflectivity Where arc welding or cutting is regularly carried on adjacent to painted walls, the walls should be painted with a finish having a low reflectivity of ultraviolet radiation. Finishes formulated with certain pigments, such as titanium dioxide...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005219
EISBN: 978-1-62708-187-0
... may be fire or vandalism. All must be prevented to keep the tooling in serviceable condition. Environmental factors may include temperature, humidity, ultraviolet radiation, dirt, and other atmospheric contamination. All of these factors must be reviewed with respect to the type of pattern or tool...
Image
Published: 01 August 2018
Fig. 2 Schematic of the portion of the electromagnetic spectrum that includes x-rays, γ-rays, ultraviolet and visible light, and infrared radiation showing their relationship with wavelength and photon energy More
Image
Published: 01 December 1998
Fig. 2 Schematic representation of the portion of the electromagnetic spectrum that includes x-rays, gamma rays, ultraviolet and visible light, and infrared radiation, showing their relationship with wave length and photon energy More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006871
EISBN: 978-1-62708-395-9
... , (No. 398 ), 2013 10.1186/2193-1801-2-398 Degradation Factors Ultraviolet Radiation Elevated or Lowered Temperatures Moisture Oxidation Microbiological Attack Fluorescent UV Instruments Xenon Arc Instruments Tests on the Action of Microorganisms Natural Accelerated...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003028
EISBN: 978-1-62708-200-6
... will exhibit in actual use. It is important to note that accelerated weather aging may accelerate the degradation of a material beyond a point where it will no longer represent the actual reaction that will occur over an extended time period. Ultraviolet (UV) Radiation Degradation due to UV radiation...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006920
EISBN: 978-1-62708-395-9
... to avoid thermal degradation during processing. Ultraviolet absorbers are organic compounds that absorb critical parts of UV radiation and can dissipate the absorbed energy without degradation into nondestructive heat. There are many classes of commercially available UV absorbers, including derivates...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006492
EISBN: 978-1-62708-207-5
... is one of the strongest chemical bonds known, providing excellent chemical and moisture resistance. Excellent corrosion resistance and good abrasion and impact resistance. Superior resistance to ultraviolet radiation, and excellent gloss and color retention. For most exterior environments, blended...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003844
EISBN: 978-1-62708-183-2
... radiation. Changes in ultraviolet (UV) light radiation are more pronounced than those of other ranges of radiation. The distribution of emitted energy is such that 9% is in the UV region, 45% is in the visible range, and the remaining 46% is in the infrared range ( Ref 4 ). However, the energy emitted...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006031
EISBN: 978-1-62708-172-6
... chemical bonds known. The bond strength provides a chemically inert coating with complete resistance to UV light degradation. Ultraviolet radiation is one of the major causes of deterioration of coatings exposed to the atmosphere. In addition to exterior durability, PVDF resins also possess several...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0005692
EISBN: 978-1-62708-178-8
... for photography is to refract light differently as a function of principles. optical density. wavelength is minimized. See also achro- matic, apochromatic lens. analytical curve. The graphical representa- absorption (of electromagnetic radiation). A tion of a relation between (1) the intensity decrease...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006073
EISBN: 978-1-62708-172-6
... in the activity of the sun affect the wavelength of emitted radiation. Changes in ultraviolet light (UV) radiation are more pronounced than those of other ranges of radiation. The distribution of emitted energy is such that 9% is in the UV region, 45% is in the visible range, and the remaining 46...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006748
EISBN: 978-1-62708-213-6
... of absorbing unwanted electromagnetic tron microscopy and synchrotron radiation. radiation and transmitting the remainder. A neutral density lter attenuates relatively eyepiece. The lens system used in an optical uniformly from the ultraviolet to the infra- instrument for magni cation of the image red...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003239
EISBN: 978-1-62708-199-3
... on thermally generated electromagnetic energy radiated from the test piece. Contact Thermographic Inspection Contact thermographic inspection consists of coating the surface of the test piece with a material that reacts to a change in temperature by changing color or other aspect of appearance...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006051
EISBN: 978-1-62708-172-6
... in the case of aromatic polyurethanes. Aromatic urethanes may also darken or yellow on exposure to ultraviolet radiation. Aliphatic urethanes are widely used as glossy, light-fast topcoats on many exterior structures in corrosive environments. They are relatively expensive but extremely durable...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001731
EISBN: 978-1-62708-178-8
... Abstract Ultraviolet/visible (UV/VIS) absorption spectroscopy is a powerful yet cost-effective tool that is widely used to identify organic compounds and to measure the concentration of principal and trace constituents in liquid, gas, and solid test samples. This article emphasizes...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003692
EISBN: 978-1-62708-182-5
... is released on exposure to humidity, which may result in gasing or bubbling of the coating in humid conditions. Aromatic urethanes may darken or yellow on exposure to ultraviolet radiation. Aliphatic urethanes are widely used as glossy light-fast topcoats on many exterior structures in corrosive environments...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005590
EISBN: 978-1-62708-174-0
.... However, do not go to a shade lighter than the lowest number for a given current range. Dark leather or wool clothing (to reduce reflection that can cause ultraviolet burns to the face and neck underneath the helmet) is recommended for GTAW. The greater intensity of the ultraviolet radiation may cause...