Table 2.

Physical properties of different materials

Material	Elastic modulus [GPa]	Poisson's ratio	e 31 [C m−2]	e 33 [C m−2]	Density [kg m−3]	ε11 [nF m−1]	ε33 [nF m−1]	Ref.
BNKLBT	110	0.27	3.91	14.6	5780	2.28	3.93	27
KNLNTS	87	0.39	16.3	11.4	4740	5.43	6.6	27
KNN‐LS‐CT	113	0.39	1.89	22.38	4550	7.21	6.40	28
PZT‐5A	63	0.30	5.40	15.8	7750	8.11	7.35	28
BCT‐0.5BZT	82	0.33	2.25	5.57	5400	5.54	5.16	29