Impedance sensor for the early failure diagnosis of organic coatings

Cai, Guangyi; Wang, Haowei; Jiang, Dan; Dong, Zehua

doi:10.1007/s11998-018-0072-5

Cited by 16 publications

(9 citation statements)

References 45 publications

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“…It can provide information on both electrode capacitance and resistance and allows more easy resolution of variables than DC techniques. It involves the measurement of impedance between corroding metal and a reference across a wide frequency range [ 77 ] and is ‘one of the main methods to evaluate performance of coatings’ [ 101 ]. Impedance is the Alternating Current (AC) equivalent of resistance.…”

Section: Electrochemical Techniquesmentioning

confidence: 99%

“…The disadvantages of EIS are that it requires three electrodes and immersion in and electrolyte [ 101 ]. Although there have been efforts to produce in situ, electrolyte free kits [ 104 ], complexity in design still exists.…”

Section: Electrochemical Techniquesmentioning

confidence: 99%

“…There has been development of specific sensors for diagnosis of polyurethane organic coatings [ 101 ]. A miniature battery powered sensor example is given in [ 101 ] and this was shown to be a sensitive and effective method of determining coating performance on an in situ basis [ 101 ].…”

Section: Electrochemical Techniquesmentioning

confidence: 99%

See 2 more Smart Citations

Techniques for In Situ Monitoring the Performance of Organic Coatings and Their Applicability to the Pre-Finished Steel Industry: A Review

Savill

Jewell

2021

Sensors

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A review is carried out in this paper into techniques that currently exist for, of have the potential to be used for, monitoring the performance of organic coating. Specific attention is paid to the applicability of each method to pre-finished steel used in the construction industry as these are rarely monitored in situ and their expected performance is often only estimated from lab-based accelerated corrosion testing. Monitoring could allow more accurate estimates of building cladding lifespan and required maintenance schedules; provide customers with active performance data; additionally, with a better understanding of performance, more appropriate coatings or coating weights could be selected for a construction project, offering economic benefits as part of smart building developments. An introduction to coatings, their use for corrosion protection, failure mechanisms, and relevant monitoring techniques is given before current assessment techniques are described in terms of their working principles. Examples of recent work are presented for the techniques that have been investigated for monitoring or directly relatable purposes. The review concludes that there are several good reasons why an optimum corrosion monitoring technology does not currently exist, however, promising research is emerging in the field of wireless and embedded sensor design which is providing optimistic results.

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Section: Electrochemical Techniquesmentioning

confidence: 99%

Section: Electrochemical Techniquesmentioning

confidence: 99%

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Techniques for In Situ Monitoring the Performance of Organic Coatings and Their Applicability to the Pre-Finished Steel Industry: A Review

Savill

Jewell

2021

Sensors

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“…To evaluate SAM coated metals under a corrosive environment, the most important techniques are electrochemical methods (electrochemical impedance spectroscopy [ 72 , 73 , 74 ], polarization resistance method, quartz crystal microbalance, radiotracer methods, nanoscratching, nanoindentation, photoelectron spectroscopy, and Mössbauer spectroscopy [ 75 ], but other techniques used every day in corrosion evaluation are also applied (gravimetric/salt chamber method: important information about the pitting, general and intergranular deterioration, inductive plasma coupled mass spectroscopy for detection of metal ions in the corrosive solution) to mention only some of them [ 76 , 77 ]. The corrosion mechanism could be quantified by other techniques [ 78 ].…”

Section: Evaluation Of Anticorrosion Activity Of Sam Coated Surfacmentioning

confidence: 99%

Formation of Self-Assembled Anticorrosion Films on Different Metals

Telegdi

2020

Materials

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The review will first discuss shortly the phenomenon of corrosion and enroll some general possibilities to decrease the rate of this deterioration. The stress will be laid upon the presentation of anticorrosive self-assembled molecular (SAM) layers as well as on the preparation technology that is a simple technique, does not need any special device, and can be applied on different solids (metals or non-metals) alone or in combination. The paper groups the chemicals (mainly amphiphiles) that can develop nanolayers on different pure or oxidized metal surfaces. The history of the self-assembled molecular layer will be discussed from the beginning of the first application up to now. Not only the conditions of the nanofilm preparation as well as their characterization will be discussed, but the methods that can evaluate the corrosion-inhibiting efficiency of the SAM layers under a corrosive environment will be demonstrated as well.

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“…The construction industry is starting to catch up, although current research suggests monitoring is focused on load critical components, especially reinforced concrete rebar. Some research has been carried out into coated panel sensors, such as strain gauges [6], corrosion indicating paint [7], electrical resistance probes [8], and numerous EIS (electrical impedance spectroscopy) modifications [9][10][11][12][13][14][15][16][17]. These sensors work in small scale testing.…”

Section: Introductionmentioning

confidence: 99%

Design of a Chipless RFID Tag to Monitor the Performance of Organic Coatings on Architectural Cladding

Savill

Jewell

2022

Sensors

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Coating degradation is a critical issue when steel surfaces are subject to weathering. This paper presents a chipless, passive antenna tag, which can be applied onto organically coated steel. Simulations indicated that changes associated with organic coating degradation, such as the formation of defects and electrolyte uptake, produced changes in the backscattered radar cross section tag response. This may be used to determine the condition of the organic coating. Simulating multiple aging effects simultaneously produced a linear reduction in tag resonant frequency, suggesting coating monitoring and lifetime estimation may be possible via this method. For coatings thinner than calculations would suggest to be optimum, it was found that the simulated response could be improved by the use of a thin substrate between the coated sample and the antenna without vastly affecting results. Experimental results showed that changes to the dielectric properties of the coating through both the uptake of water and chemical degradation were detected through changes in the resonant frequency.

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Impedance sensor for the early failure diagnosis of organic coatings

Cited by 16 publications

References 45 publications

Techniques for In Situ Monitoring the Performance of Organic Coatings and Their Applicability to the Pre-Finished Steel Industry: A Review

Techniques for In Situ Monitoring the Performance of Organic Coatings and Their Applicability to the Pre-Finished Steel Industry: A Review

Formation of Self-Assembled Anticorrosion Films on Different Metals

Design of a Chipless RFID Tag to Monitor the Performance of Organic Coatings on Architectural Cladding

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