Answers are grounded in this paper and cite their sources.
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.
No takes yet. Share an insight, caveat, or question.
Klicker et al. (1982) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: