Comparison between AlN and Al<sub>2</sub>O<sub>3</sub> ceramics applied to barrier dielectric of plasma actuator

Comparison between AlN and Al₂O₃ ceramics applied to barrier dielectric of plasma actuator

Bian Dong-Liang¹, Wu Yun^{2, †}, Jia Min¹, Long Chang-Bai¹, Jiao Sheng-Bo¹

(color online) Surface morphologies and corresponding plasma images of (a) the AlN actuator and (b) the Al₂O₃ actuator. Operation time is listed above each image column in unit min.