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water absorption

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Published: 15 May 2022
Fig. 11 Comparison of water absorption of epoxy-resin systems of differing polarities. TGMDA, tetraglycidyl methylenedianiline More
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Published: 01 June 2019
Fig. 15 Analysis of the rinse water residue by FTIR produced absorption bands associated with an inorganic sulfate salt. More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006929
EISBN: 978-1-62708-395-9
...-resin composites. diffusion moisture concentration moisture-induced damage plastics resins water absorption THE ADVERSE EFFECT of moisture on performance in a structural application is a critical aspect of plastics corrosion resistance. Plastics are more resistant to corrosion than...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0060097
EISBN: 978-1-62708-219-8
... Abstract An eddy current survey of the copper evaporator (chiller) tubes in an absorption air-conditioning unit revealed two tubes in the evaporator bundle with indications typical of longitudinal cracks. Significant necking down and grain distortion at the fracture surfaces was revealed...
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Published: 01 June 2019
Fig. 3 Analysis of the corrosion debris from the sensor coil wire by FTIR produced absorption bands that are indicative of metallic oxides, hydroxides, and water. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0046422
EISBN: 978-1-62708-234-1
... stator was subject to severe erosion after relatively short operating times and initially required replacement after each test program. Although up to 60 cu cm (3.7 cu in.) of material was being lost from each vane, it only reduced the power-absorption capacity by a small amount. Analysis supported...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001629
EISBN: 978-1-62708-235-8
... sample of the rinse water produced no absorption bands that were indicative of organic materials; however, the spectrum showed characteristics that were consistent with an inorganic sulfate salt. Several representative parts were analyzed in nondiscolored and discolored regions to characterize any...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001624
EISBN: 978-1-62708-218-1
... on the corrosion debris via FTIR. The resulting spectrum ( Fig. 3 ) contained absorption bands that are indicative of metallic oxides, hydroxides, and water. These compounds are commonly found in corrosion deposits of metals. Fig. 3 Analysis of the corrosion debris from the sensor coil wire by FTIR produced...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9
... of separate and distinct T g in multicomponent polymer systems is useful as an indication of incompatibility or immiscibility among the components. Moisture Effect on T<sub>g</sub> The effect of absorbed moisture on the T g is invariably to lower it. This is consistent with the role of water...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048147
EISBN: 978-1-62708-234-1
... during investigation. Etch pits were revealed by the cleaned surface which were never observed on properly phosphated coating. It was interpreted that the spring had been subjected to an abnormal acid attack in pickling or phosphating which had resulted in considerable absorption of hydrogen by the metal...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0090460
EISBN: 978-1-62708-234-1
... Abstract A component of a water filtration unit failed while being used in service for approximately eight months. The filter system had been installed in a commercial laboratory, where it was stated to have been used exclusively in conjunction with deionized water. The failed part had been...
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
..., leading to absorption and desorption cycles. Typically, materials absorb water at night, especially if dew forms, or during longer rain phases, and dry out during a sunny day due to heating. The key variable is the relative humidity at the specimen surface, also sometimes called effective humidity, which...
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
... temperature also change. Water absorption can cause the plastic to swell, while water release can cause it to shrink. Cold water on hot surfaces (e.g., sudden thunderstorms on a black roof heated by the sun) leads to thermal shock and additional mechanical stress. Liquid water can wash additives out...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006937
EISBN: 978-1-62708-395-9
... region of the transmission curve around 400 nm, as is evident from curve 2 of Fig. 3 . A blue toner is added to the material to make it appear “water clear,” resulting in curve 3 of Fig. 3 . It is the absorption of the green and red portions of the spectrum that make the part appear water clear...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... such as glass-transition temperature of nylon drastically reduce with the increase in the absorbed water content in nylon. In this respect nylon 11 and nylon 12 are superior to nylon 6 and nylon 6/6. The percentage water absorption at saturation and 20 °C temperature for nylon 11 and nylon 12 is 1.6% each ( Ref...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006850
EISBN: 978-1-62708-395-9
... and hardness as well as physical properties such as glass-transition temperature drastically reduce with the increase in the absorbed water content in nylon. In this respect, nylon 11 and nylon 12 are superior to nylon 6 and nylon 6,6. The percentage of water absorption at saturation and 20 °C (68 °F...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... properties (i.e., stiffness, strength, and hardness). Water permeates all polymeric materials to a greater or lesser degree; moisture-absorption kinetics differ widely between different grades of material and with chemical aging. Depending on the nature of the polymer, considerable quantities of moisture may...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001343
EISBN: 978-1-62708-215-0
... Abstract A section of type 304 stainless steel pipe from a stand by system used for emergency injection of cooling water to a nuclear reactor failed during precommissioning. Leaking occurred in only one spot. Liquid penetrant testing revealed a narrow circumferential crack. Metallographic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001570
EISBN: 978-1-62708-220-4
... the exchanger tubes to impose load on seal welds and the shell side cooling water entered the crevice between the tubesheet and the tubes. The cooling water in the crevice caused galvanic reaction and embrittlement of seal welds. Brittle crack opening and crack propagation in seal welds occurred due...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001387
EISBN: 978-1-62708-215-0
... Abstract Nickel anodes failed in several electrolysis cells in a heavy-water upgrading plant. Dismantling of a cell revealed gouging and the presence of loosely attached black porous masses on the anode. The carbon steel top, plate was severely corroded. An appreciable quantity of black powder...