Table 1.

Mechanical properties for UHMW bearing and PZT transducer ( ${\epsilon }_0=8.854\times {10}^{-12}\text{F/m}$).

Material Property	UHMW polyethylene	APC 850 (PZT-5A)
Density	930 $kg/m^3$	7600 $kg/m^3$
Modulus of Elasticity	0.689 GPa	54 GPa
Strain Constant, $d_{33}$	–	$400\times {10}^{-12}m/V$
Relative Dielectric Constant, ${\epsilon }_{33}^T/{\epsilon }_0$	–	1900