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Failure behavior of Pb(Zr0.95Ti0.05)O3 ferroelectric ceramics under shock compression
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10.1063/1.4803052
/content/aip/journal/jap/113/18/10.1063/1.4803052
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/18/10.1063/1.4803052

Figures

Image of FIG. 1.
FIG. 1.

The rear free-surface particle velocity profile at 2.0 GPa.

Image of FIG. 2.
FIG. 2.

The rear free-surface particle velocity profile at 2.5 GPa, arrows indicate (recompression time).

Image of FIG. 3.
FIG. 3.

The rear free-surface particle velocity profile at 3.8 GPa, arrows indicate (recompression time).

Image of FIG. 4.
FIG. 4.

The rear free-surface particle velocity profile at 4.9 GPa.

Image of FIG. 5.
FIG. 5.

The load wave and particle velocity history with a presumed failure layer. (a) Lagrangian distance-time diagram showing the propagation of the loading wave. The compressive wave (S) reflected from the PZT/Sapphire interface and the rarefaction wave (R), not the recompress signal, is reflected from the failure layer towards the interface. (b) Particle velocity history of the interface. The velocity will decrease at time if a failure layer exists; it then remains constant until time time where the velocity at the interface partially recovers. The velocity profile looks like an inverted trapezium.

Image of FIG. 6.
FIG. 6.

The interface particle velocity of shot No.120629. A high-impedance sapphire window has been attached to distinguish delayed failure and dynamic yielding signals. A release/reload structure (encircled area) is observed that confirms the existence of the failure layer in PZT 95/5 at 2.4 GPa.

Image of FIG. 7.
FIG. 7.

diagram of failure wave in PZT 95/5, is the measured recompression time, the thickness of the failure zone, and the failure time, the sample thickness, the delay time.

Image of FIG. 8.
FIG. 8.

The rear free-surface particle velocity profile at 2.4 GPa with a 6-mm-thick sample; the recompression signals are marked by arrows.

Image of FIG. 9.
FIG. 9.

The rear free-surface particle velocity profile at 2.5 GPa with an 8-mm-thick sample; (a) original figure and (b) an enlargement of the recompression signals marked by arrows.

Image of FIG. 10.
FIG. 10.

The rear free-surface particle velocity profile at 3.4 GPa with 6 mm thickness sample, with the recompress signal marked by an arrow.

Image of FIG. 11.
FIG. 11.

The rear free-surface particle velocity profile at 3.5 GPa with 4 mm thickness sample, with the recompress signal marked by an arrow.

Image of FIG. 12.
FIG. 12.

The rear free-surface particle velocity profile at 3.5 GPa with 8 mm thickness sample, with the recompress signal marked by an arrow.

Image of FIG. 13.
FIG. 13.

Time and distant diagram shows the expanding trajectory of the failure zone. The delayed failure fronts lie well on two straight lines, parallel to the shock-wave front, corresponding to two different shock stresses. Solid triangle and cycle symbols are the experimental data from Tables III and IV .

Image of FIG. 14.
FIG. 14.

Delay time () of the failure layer versus shock stress (), the large error bars are caused by an irregular layer front in PZT 95/5.

Tables

Generic image for table
Table I.

Selected properties of the unpoled PZT 95/5.

Generic image for table
Table II.

Shock experimental conditions.

Generic image for table
Table III.

Parameters of the delayed failure at 2.5 GPa.

Generic image for table
Table IV.

Parameters of the delayed failure at 3.5 GPa.

Generic image for table
Table V.

Parameters of delayed failure at 3.8 GPa.

Generic image for table
Table VI.

Delay time of the failure layer versus shock stress.

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/content/aip/journal/jap/113/18/10.1063/1.4803052
2013-05-08
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Failure behavior of Pb(Zr0.95Ti0.05)O3 ferroelectric ceramics under shock compression
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/18/10.1063/1.4803052
10.1063/1.4803052
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