Document ZnBjo7yZ8brb0GEpXjg85QMEd

Table 1 The differences of behavior between PVDF piezo and piezo ceramicc Property direction** Unit PVDFpiezofilm* behavior Tensile Modulus MD GPa TD GPa 3.0-3.2 2.8-3.0 >flexibility> Tensile Strength MD MPa 500-600 >stiffness> TD MPa 45-55 stiffness Elongation MD % (at Break) 20-30 >toughness TD % (at Yield) 5-7 & flexibility> Pb(Zr,Ti)O3 51.4 54.6 0.08 uni-stretched polarized PVDF film MD: parallel to stretched directionTD: perpendicular to stretched direction