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Piezoelectric Composites with 3–1 Connectivity and a Foamed Polyurethane Matrix
Author(s) -
Klicker K. A.,
Schulze W. A.,
Biggers J. V.
Publication year - 1982
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1982.tb09953.x
Subject(s) - porosity , composite material , materials science , polyurethane , piezoelectricity , hydrostatic equilibrium , matrix (chemical analysis) , sensitivity (control systems) , volume (thermodynamics) , physics , quantum mechanics , electronic engineering , engineering
The effect of porosity on the hydrostatic piezoelectric sensitivity was explored for 3–1 composites with a polyurethane matrix. Hydrostatic sensitivity increases rapidly with volume of porosity, and d h increases from 12 x10 −12 to >200X10‐ 12 C/N when 40% porosity is incorporated. These composites become strongly nonlinear at >I MPa and consequently would be limited to shallow water operation.