eFunda: Properties of Piezo Material Lithium Niobate
engineering fundamentals Piezo Data: LiNbO
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Lithium Niobate
Crystal symmetry class Trigonal 3m
Density 4700 kg/m3
Constitutive data is presented in the Strain-Charge format.
Compliance
5.78 -1.01 -1.47 -1.02 0 0
-1.01 5.78 -1.47 1.02 0 0
-1.47 -1.47 5.02 0 0 0
-1.02 1.02 0 17 0 0
0 0 0 0 17 -2.04
0 0 0 0 -2.04 13.6
*10-12 
Piezoelectric Coupling
0 0 0 0 68 -42
-21 21 0 68 0 0
-1 -1 6 0 0 0
*10-12 
Relative Permittivity
84 0 0
0 84 0
0 0 30
,  8.854 *10-12 
For a description of the ordering convention used to layout the constitutive matrices, see Subscript Ordering.
Glossary
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