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Micro-hardness values for piezoelectric composite films under 200 g load for 30 s.
| Composite Film 28% Porosity PZT/PZT No Infiltration HV(MPa) | PZT/PZT 16% Porosity 30 μm, 5[C+2S] HV(MPa) | PZT/BiT 16% Porosity 50 μm, 5[C+2S] HV(MPa) | PZT 11% Porosity 15 μm (30-layer) HV(MPa) | BiT 9% Porosity 33 μm (30-layer) HV(MPa) |
|---|---|---|---|---|
| 1480 | 3236 | 2942 | 3531 | 2844 |
