During aircraft flight,the buildup of supercooled water droplets on aircraft's surface would severely compromise flight safety.De-icing technology is crucial for enhancing the safety performance of aircraft,in which,piezoelectric de-icing technology offers advantages in terms of low energy consumption and straightforward structure.This paper provides an overview of aircraft de-icing techniques based on piezoelectric ceramics and composites,categorized by their physical principles and operating frequencies.The principles and advantages/disadvantages of low-frequency piezoelectric resonance and high-frequency ultrasonic de-icing are explored,evolution of piezoelectric materials in de-icing systems is summarized,pros & cons and scope of application of traditional lead-based and lead-free piezoelectric ceramics are evaluated,and future application of flexible piezoelectric composites in aircraft de-icing are anticipated.It was deduced that the fabrication of high-power piezoelectric ceramics and high-function piezoelectric composites would be the main research area in aircraft de-icing.This paper provides ideas in improving aircraft de-icing technology.
维普
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