نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه رنگدانههای سرامیکی و لعاب، پژوهشگاه رنگ، تهران، ایران
2 گروه شیمی، دانشکده علوم پایه دانشگاه جامع امام حسین (ع)
3 پژوهشکده سرامیک، پژوهشگاه مواد و انرژی
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In this study, piezoelectric properties of high solid piezoelectric paints (upper than 85 wt% pigment) have been investigated. High polarity particles were obtained by recyclying cores of sonar devices through cruching, milling, seizing anod surface modifying by silane groups. Structural studies revealed the presence of lead zirconate titanate (PZT) in the X-ray diffraction pattern (XRD) of paint. Microstructue confirmed the existence of PZT particles in the polymeric matrix of resin which were agglomerated to optimize piezoelectric values. Due to the loss of piezoelectric properties in submicron sizes, average of particle size was selected between 38 μm (400 mesh) and 106 μm (140 mesh). The optimized thickness was also set between 500-1500 μm for the same reason. Moreover, other studies showed that surface treatments and use of solvent in formulation had undeniable effects on piezoelectric properties of paints. The optimized Piezoelectric Coefficient d33 (22 pC/N) was achieved in the sample treated by alkaline solution. This sample also showed higher corrosion resistivity in 200 hours period of time.
کلیدواژهها [English]