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photochemical aging

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780153
EISBN: 978-1-62708-281-5
... Abstract This article presents a general overview of outdoor weather aging factors, their effects on plastic materials, and the accelerated test methods that can be used to estimate the reaction of a plastic component during actual use. Weather and radiation factors that contribute...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780329
EISBN: 978-1-62708-281-5
... wavelengths responsible for polymer photochemistry, problems with artificial light sources, general photooxidation and specific photochemical reactions important in plastics, and the factors influencing the rate of degradation. The approaches used to stabilize plastics against photochemical damage, including...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.pb.t51230207
EISBN: 978-1-62708-351-5
..., Jacobson, and Peacock [1998] Silver alloys Ag-30Cu 825 1515 950 1740 Tuah-Poku, Dollar, and Massalski [1988] Tantalum Ti-30V 1675–1760 3050–3200 >2095 >3800 Schwartz [1987] Titanium aluminide Titanium aluminide/Cu powder mixture 1150 2100 >1350 >2460 Gale et al...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230441
EISBN: 978-1-62708-298-3
..., which depends on the characteristics of the product (e.g., a viscosity increase of liquid or paste, or lack of tack of films, etc.), is affected, resulting in a degraded adhesive bond. An example of a loss in strength due to aging of an epoxy-film adhesive is shown in Fig. 24.4 [ Acker 1990...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440189
EISBN: 978-1-62708-352-2
... solder alloys in air and nitrogen Alloy Surface tension, mN/m Air Nitrogen Bi-43Sn 319 349 Sn-9Zn 518 487 Pb-62Sn 417 464 Ag-96Sn 431 493 Cu-99Sn 491 461 Sb-95Sn 468 495 Test conditions: test temperature, 250 °C (482 °F); polytetrafluoroethylene substrate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780146
EISBN: 978-1-62708-281-5
...-made smoke, industrial gases, and photochemical smog, as well as by the natural processes of volcanic eruptions, dust storms, and forest fires. The principal chemical pollutants are sulfur oxides, which, when oxidized, usually form sulfur trioxide or metallic sulfates. Nitrogen oxides, like sulfur...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870135
EISBN: 978-1-62708-299-0
...; in fact, some specimens of this alloy were 2 to 3% higher in strength after 20 years because of long-term natural aging. Weathering data for 0.89 mm (0.035 in.) thick aluminum alloy sheet after 20 year exposure (ASTM program started in 1931) Table 2 Weathering data for 0.89 mm (0.035 in.) thick...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230523
EISBN: 978-1-62708-298-3
.... , Vol 131 , p 130 – 139 10.1002/zaac.19231310111 Friedman G. , 1937 . “ Problems in the Extrusion of Structural Beryllium Shapes ,” Technical Paper MF-67–204, American Society of Tool and Manufacturing Engineers , Dearborn, MI Friedman H. , 1989 . Photochemical Machining...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.9781627082983
EISBN: 978-1-62708-298-3
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
...) Electrical discharge grinding (EDG) Electron beam machining (EBM) Laser beam machining (LBM) Thermal energy method (TEM) Chemical Chemical milling (CM) Photochemical machining (PCM) Types of Machining Equipment There are three types of machining equipment: general-purpose machine tools...