eFunda: Properties of Piezo Material Ammonium Dihydrogen Phosphate
engineering fundamentals Piezo Data: ADP
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Ammonium Dihydrogen Phosphate
Crystal symmetry class Tetragonal 42m
Density 1803 kg/m3
Constitutive data is presented in the Strain-Charge format.
Compliance
18.1 1.9 -11.8 0 0 0
1.9 18.1 -11.8 0 0 0
-11.8 -11.8 43.5 0 0 0
0 0 0 116 0 0
0 0 0 0 116 0
0 0 0 0 0 166
*10-12 
Piezoelectric Coupling
0 0 0 11.7 0 0
0 0 0 0 11.7 0
0 0 0 0 0 51.7
*10-12 
Relative Permittivity
56 0 0
0 56 0
0 0 15.4
,  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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