Integrated transparent surface acoustic wave technology for active de-fogging and icing protection on glass

Ong, Hui Ling; Yang, Deyu; Chen, Hui; Zhou, Jian; Haworth, Luke; Zhang, Jikai; Gibson, D. R.; Agrawal, Prashant; Torun, Hamdi; Wu, Qiang; Hou, Xianghui; Fu, Yong Qing

doi:10.1016/j.matchemphys.2023.127842

Cited by 10 publications

(2 citation statements)

References 53 publications

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“…As shown in this figure, when the temperature is gradually decreased, the frequency of the SAW devices is increased; e.g., the resonant frequency of the SAW device increases with a decrease of the temperature. The calculated TCF value is at about −248.9 ppm/°C for this ZnO/Al SAW device, which shows a reading similar to that reported in ref for a similar SAW device. However, a turning point is observed (e.g., with a maximum value of the frequency marked with a circle in Figure a) at ∼2–5 °C.…”

Section: Resultssupporting

confidence: 88%

“…As seen from Table , ultrasonic and acoustic wave technologies are two promising candidates to monitor ice/frost formation in a cold environment, and they are commonly based on monitoring of the vibration frequencies with the capability of ice thickness measurement. ,, Another key advantage of these techniques is that they can also be used as active deicing or antiicing methods. For example, recent studies clearly show that, for ice mitigation, surface-acoustic-wave (SAW) devices can generate both acoustic wave vibrations and thermal effects on the device surface, , thus offering great potential for both antiicing and deicing with a reasonably high efficiency. − Therefore, it could be applied as one of the appropriate techniques for effectively tackling icing issues on structural surfaces. However, the conventionally used bulk piezoelectric ceramic-based ultrasonic or SAW devices have critical issues such as brittleness of the piezoelectric substrates (especially at high acoustic wave powers or large mechanical forces), rigidity, and noncompatibility with structural surfaces or microelectrics-based mass production technologies.…”

Section: Introductionmentioning

confidence: 99%

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Fundamentals of Monitoring Condensation and Frost/Ice Formation in Cold Environments Using Thin-Film Surface-Acoustic-Wave Technology

Zeng

Ong

Haworth

et al. 2023

ACS Appl. Mater. Interfaces

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Moisture condensation, fogging, and frost or ice formation on structural surfaces cause severe hazards in many industrial components such as aircraft wings, electric power lines, and wind-turbine blades. Surface-acoustic-wave (SAW) technology, which is based on generating and monitoring acoustic waves propagating along structural surfaces, is one of the most promising techniques for monitoring, predicting, and also eliminating these hazards occurring on these surfaces in a cold environment. Monitoring condensation and frost/ice formation using SAW devices is challenging in practical scenarios including sleet, snow, cold rain, strong wind, and low pressure, and such a detection in various ambient conditions can be complex and requires consideration of various key influencing factors. Herein, the influences of various individual factors such as temperature, humidity, and water vapor pressure, as well as combined or multienvironmental dynamic factors, are investigated, all of which lead to either adsorption of water molecules, condensation, and/or frost/ice in a cold environment on the SAW devices. The influences of these parameters on the frequency shifts of the resonant SAW devices are systematically analyzed. Complemented with experimental studies and data from the literature, relationships among the frequency shifts and changes of temperature and other key factors influencing the dynamic phase transitions of water vapor on SAW devices are investigated to provide important guidance for icing detection and monitoring.

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Fundamentals of Monitoring Condensation and Frost/Ice Formation in Cold Environments Using Thin-Film Surface-Acoustic-Wave Technology

Zeng

Ong

Haworth

et al. 2023

ACS Appl. Mater. Interfaces

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Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

Pandey,

del Moral,

Jacob

et al. 2024

Adv Eng Mater

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Acoustic waves (AW) have recently emerged as an energy‐efficient ice‐removal procedure compatible with functional and industrial‐relevant substrates. However, critical aspects at fundamental and experimental levels have yet to be disclosed to optimize their operational conditions. Identifying the processes and mechanisms by which different types of AWs induce de‐icing are some of these issues. Herein, using model LiNbO3 systems and two types of interdigitated transducers, the e‐icing and anti‐icing efficiencies and mechanisms driven by Rayleigh surface acoustic waves (R‐SAW) and Lamb waves with 120 and 510 μm wavelengths, respectively, are analyzed. Through the experimental analysis of de‐icing and active anti‐icing processes and the finite element simulation of the AW generation, propagation, and interaction with small ice aggregates, it is disclosed that Lamb waves are more favorable than R‐SAWs to induce de‐icing and/or prevent the freezing of small ice droplets. Prospects for applications of this study are supported by proof of concept experiments, including de‐icing in an icing wind tunnel, demonstrating that Lamb waves can efficiently remove ice layers covering large LN substrates. Results indicate that the de‐icing mechanism may differ for Lamb waves or R‐SAWs and that the wavelength must be considered as an important parameter for controlling the efficiency.

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Review on Icephobicity of Materials Surface Enhanced by Interface Action Force

Zhao,

Shen,

Tao

et al. 2024

Adv Materials Inter

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In response to the hazards of icing in the energy, transportation, and aerospace sectors, extensive research has been conducted on anti‐icing materials based on the solid‐liquid/ice interface theory, as well as reliable chemical and electro‐thermal de‐icing systems. However, there is an urgent need for modernizing anti‐icing systems to address diverse application scenarios. Gaining insights into the influence of interface action forces on water droplet behavior can proactively prevent detrimental icing occurrences. Nevertheless, under severe conditions where ice formation is inevitable, leveraging interface action forces to induce cracking and expansion of ice facilitates its rapid detachment despite potential challenges associated with complete removal. A comprehensive review elucidating the mechanisms through which interface action forces impact water/ice formations encompasses various approaches toward designing mechanically‐driven de‐icing systems.

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Integrated transparent surface acoustic wave technology for active de-fogging and icing protection on glass

Cited by 10 publications

References 53 publications

Fundamentals of Monitoring Condensation and Frost/Ice Formation in Cold Environments Using Thin-Film Surface-Acoustic-Wave Technology

Fundamentals of Monitoring Condensation and Frost/Ice Formation in Cold Environments Using Thin-Film Surface-Acoustic-Wave Technology

Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

Review on Icephobicity of Materials Surface Enhanced by Interface Action Force

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