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ultraviolet-light

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Published: 30 September 2015
Fig. 43 Ultraviolet light/condensing humidity cabinet (with door open). Courtesy of KTA-Tator, Inc. More
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Published: 30 September 2015
Fig. 48 Adhesion evaluation after several ultraviolet light/humidity cycles. Courtesy of KTA-Tator, Inc. More
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Published: 01 January 2002
Fig. 15 Ultraviolet lighting. (a) Single-side ultraviolet copystand lighting setup. (b) Resulting ultraviolet lighting photograph of a fluorescent penetrant crack indication More
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005759
EISBN: 978-1-62708-171-9
..., ultraviolet light, and mechanical hazards. The means selected for safeguarding personnel must be based on a formal risk assessment that meets ANSI/RIA standards. The safeguards include sensing devices, barriers, awareness signals, procedures, and training. It also provides guidelines that are intended...
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
... Abstract Polymer composite materials are subject to degradation if not appropriately protected from the environment. This article describes the effects of heat and atomic oxygen and ultraviolet-light on composite material surfaces, with illustrations. atomic oxygen composite material...
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Published: 01 December 2004
Fig. 3 Oxidation on the surface of a woven carbon fabric composite part as a result of short-term ultraviolet-light exposure. The oxidation is found to have penetrated only approximately 5 μm deep into the surfacing film in this time period. Transmitted light, phase contrast, 20× objective More
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Published: 12 September 2022
Fig. 2 Schematic representation of various printing protocols used in vat photopolymerization printers. (a) Direct light processing. (b) Laser beam stereolithography apparatus (SLA). (c) Liquid-crystal-display-masked SLA. Purple areas represent ultraviolet light projected onto the tank. More
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Published: 01 January 2003
Fig. 12 The result of fluorescein test as indicator of corrosion. (a) Variance in fluorescence under ultraviolet light with varying degree of corrosion. (b) A broad range high emission for fluorescein More
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Published: 30 August 2021
Fig. 5 Fluorescent dye penetrant indication of fissures in a carburized UNS G86200 steel worm gear after grinding, revealed under ultraviolet light. Source: Ref 8 More
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Published: 01 January 2002
Fig. 1 Typical crack defects found on ceramic ball surfaces under ultraviolet light. (a) Star defect. (b) Pressing defect. (c) Single ring crack. (d) Double ring cracks More
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Published: 01 January 2024
Fig. 3 Fracture surface of a high-strength steel bolt that fractured immediately upon application of the installation torque. The fracture surface is viewed under ultraviolet light illumination. Fluorescing material on the fracture surface indicates penetration of thread lubricant More
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Published: 01 January 2024
Fig. 16 Full-scale fatigue test (FSFT) stub flange critical fatigue crack location and detection (red arrow in inset) using dye penetrant under ultraviolet light. The common noncritical “nuisance” cracking location for some service aircraft and also observed during the FSFT test is shown More
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
... resins Acrylics Excellent light and ultraviolet stability, gloss, and color retention. Good chemical resistance and excellent atmospheric weathering resistance. Resistant to chemical fumes and occasional mild chemical splash and spillage. Minimal chalking, little if any darkening on prolonged...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003231
EISBN: 978-1-62708-199-3
... is performed in a suitably darkened area using black (ultraviolet) light, which causes the penetrant to emit visible light. The actions of penetrant and developer are shown in Fig. 1 . Fig. 1 Actions of penetrant and developer. (a) Penetrant liquid is drawn into an open crack by capillary action. (b...
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
... widely for atmospheric resistance in chemical environments on structural steel, tank exteriors, etc. Thermoplastic resins Acrylics Excellent light and ultraviolet stability, gloss, and color retention. Good chemical resistance and excellent atmospheric weathering resistance. Resistant...
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
... approximately 185 nm is termed the vacuum ultraviolet; the optical paths for experiments in the vacuum ultraviolet are evacuated or purged with a nonabsorbing gas, such as helium. The long-wavelength low-energy end of the spectral region is defined by the fact that the eye can no longer detect light...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003232
EISBN: 978-1-62708-199-3
... as the base for wet particles. For increased visibility, particles are coated with fluorescent pigment by the manufacturer. Inspection is conducted in total or partial darkness, using ultraviolet light to activate the fluorescent dyes. Inspected surfaces should be illuminated with a minimum of 1000 μW/cm...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006468
EISBN: 978-1-62708-190-0
... or hoods and an ultraviolet light; these are used during inspection with fluorescent particles. Stationary power packs serve as sources of high-amperage magnetizing current to be used in conjunction with special fixtures or with cable-wrap or clamp-and-contact techniques. Rated output varies from...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003527
EISBN: 978-1-62708-180-1
... photography is the ultraviolet haze or UV filter. The UV filter protects the lens from scratching and from accumulation of deposits and dirt. The UV filter also aides in sharpening the photograph under hazy conditions. Polarizing filters may be used in highly reflective conditions. If tungsten lighting...
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
... for immersion service A high-quality oil-based coating with good compatibility with most other coating types. Applications are similar to alkyds but with somewhat better performance. Thermoplastic resins Acrylics Good exterior durability. Excellent ultraviolet light resistance; excellent gloss...