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Durability properties of piezoelectric stack actuators under combined electromechanical loading
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10.1063/1.2407269
/content/aip/journal/jap/100/12/10.1063/1.2407269
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/12/10.1063/1.2407269

Figures

Image of FIG. 1.
FIG. 1.

Diagram of possible ferroelectric fatigue mechanisms.

Image of FIG. 2.
FIG. 2.

(Color online) Experimental setup for electromechanical loading tests.

Image of FIG. 3.
FIG. 3.

(Color online) Strain response as a function of the applied preload at 0, 2, 4, 6, 8, and (0, 13.8, 27.6, 41.4, 55.2, and ) (SU stack at ).

Image of FIG. 4.
FIG. 4.

(Color online) Example of voltage-strain and stress-strain responses under the combined out-of-phase electromechanical loading for constant load amplitude [ ] (PI-HV stack).

Image of FIG. 5.
FIG. 5.

(Color online) Illustration of the test setup to measure the surface temperature for two different boundary conditions (no mechanical load).

Image of FIG. 6.
FIG. 6.

(Color online) Temperature rise for different (a) cycling frequencies and (b) boundary conditions (PI-HV stack, voltages of , and no preload).

Image of FIG. 7.
FIG. 7.

(Color online) Change in the current draw and strain output due to self-heating of piezoelectric stacks (PI-HV stack, low thermal conductivity plate, voltages of , and no preload).

Image of FIG. 8.
FIG. 8.

(Color online) Piezoelectric properties as a function of the applied mechanical preload: (a) strain output and (b) peak-to-peak current normalized with respect to the current draw for each stack at no preload.

Image of FIG. 9.
FIG. 9.

(Color online) Strain output as a function of the operating load range [out-of-phase electromechanical loading with a load amplitude of ].

Image of FIG. 10.
FIG. 10.

(Color online) Piezoelectric properties as a function of temperature (no mechanical load): (a) strain output and (b) peak-to-peak current normalized with respect to the current draw for each stack at room temperature .

Image of FIG. 11.
FIG. 11.

(Color online) Temperature at the stack’s surface (steady state after ) as a function of cyclic frequency (no mechanical loading, room temperature , high thermal conductivity plates, see Table I for electric field values).

Image of FIG. 12.
FIG. 12.

(Color online) Normalized strain output as a function of fatigue cycles for SU stacks (-stack’s surface temperature after ).

Image of FIG. 13.
FIG. 13.

(Color online) Normalized strain output as a function of fatigue cycles for TRS stacks .

Image of FIG. 14.
FIG. 14.

(Color online) Normalized strain output as a function of fatigue cycles for PI-LV stacks .

Image of FIG. 15.
FIG. 15.

(Color online) Normalized strain output as a function of fatigue cycles for PI-HV stack .

Image of FIG. 16.
FIG. 16.

(Color online) Normalized strain output and current draw (peak-to-peak current ) as a function of fatigue cycles for the RSC/KC stack .

Image of FIG. 17.
FIG. 17.

(Color online) (a) Stain output of the PI-HV stack actuators before and after fatigue as a function of mechanical preload; (b) percent degradation of the strain output at each preload.

Image of FIG. 18.
FIG. 18.

Fatigue mechanism under constant preload. dashed line indicated the domain wall before fatigue. The shaded region indicates domains that are pinned or otherwise no longer contribute to the strain output.

Tables

Generic image for table
Table I.

Piezoelectric stack nomenclature and properties.

Generic image for table
Table II.

Test matrix for fatigue loading.

Generic image for table
Table III.

Peak-to-peak current (mA) required to drive stack actuators at (as a function of mechanical load and temperature).

Generic image for table
Table IV.

Degradation in the strain output for different stack actuators after (different mechanical loading conditions).

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/content/aip/journal/jap/100/12/10.1063/1.2407269
2006-12-29
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Durability properties of piezoelectric stack actuators under combined electromechanical loading
http://aip.metastore.ingenta.com/content/aip/journal/jap/100/12/10.1063/1.2407269
10.1063/1.2407269
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