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electrochemical impedance spectroscopy

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001525
EISBN: 978-1-62708-220-4
... to the test solution. After allowing the surfaces to stabilize for 24 hours, each panel was tested via electrochemical impedance spectroscopy (EIS) to determine the polarization resistance. In EIS, a small-amplitude AC signal is applied between the sample and a counter-electrode within the test cell...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001769
EISBN: 978-1-62708-241-9
... exchanger tubes taken out of service at a gas turbine power station. The corrosive effect of each type of bacteria on mild steel was investigated using electrochemical (polarization and impedance) techniques, and the biogenic calcium scale formations analyzed by XRD. It was shown that the bacteria...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003556
EISBN: 978-1-62708-180-1
... of anaerobic bacteria able to reduce nitrate or sulfate (dots in plots) and for soils dominated by the microbial metabolism (boxes). Aerobic bacteria grow over a wide range of pH at E h > 300 mV (normal hydrogen electrode). Source: Ref 19 Whatever the metabolism, electrochemical reactions...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
... the electrochemical nature of corrosion and provides the typical analysis of environmental- and corrosion-related failures. It presents common methods of testing of laboratory corrosion and discusses the processes involved in the prevention of environmental- and corrosion-related failures of metals and nonmetals...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... Abstract This article provides an overview of the electrochemical nature of corrosion and analyzes corrosion-related failures. It describes corrosion failure analysis and discusses corrective and preventive approaches to mitigate corrosion-related failures of metals. These include: change...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... with the identification of the mode of degradation, whether it is mechanical, chemical, electrochemical, or a combination of several factors. The failure analysis can be complex, because more than one failure mechanism could be operative. The education and experience of the failure analyst augments the failure...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006914
EISBN: 978-1-62708-395-9
... compounds present in gaseous combustion products can be identified and analyzed by gas chromatography, Fourier Transform Infrared spectroscopy, or electrochemical sensors for specific species (e.g., CO), or the effects of gaseous combustion products on laboratory animals can be studied ( Ref 10 ). ASTM...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... an alternating current is placed around or near the surface of the sample, it will set up eddy currents within the material by electromagnetic induction. These eddy currents affect the impedance in the exciting coil or any other pickup coil that is nearby. Cracks or flaws within the sample will cause distortions...
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
... the connection between chemical and physical aging of polymers. The detection of weathering degradation using analytical methods such as Fourier transform infrared (FTIR) spectroscopy, electrochemical impedance, or ultraviolet/visible spectroscopy has the potential to decrease material and product development...