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CHHABILDAS, LALIT C.; FURNISH, MICHAEL D.; MONTGOMERY, STEPHEN T.; SETCHELL, ROBERT E.
Sandia National Labs., Albuquerque, NM (United States); Sandia National Labs., Livermore, CA (United States). Funding organisation: US Department of Energy (United States)1999
Sandia National Labs., Albuquerque, NM (United States); Sandia National Labs., Livermore, CA (United States). Funding organisation: US Department of Energy (United States)1999
AbstractAbstract
[en] Shock-induced depoling of the ferroelectric ceramic PZT 95/5 is utilized in a number of pulsed power devices. Several experimental and theoretical efforts are in progress in order to improve numerical simulations of these devices. In this study we have examined the shock response of normally poled PZT 95/5 under uniaxial strain conditions. On each experiment the current produced in an external circuit and the transmitted waveform at a window interface were recorded. The peak electrical field generated within the PZT sample was varied through the choice of external circuit resistance. Shock pressures were varied from 0.6 to 4.6 GPa, and peak electrical fields were varied from 0.2 to 37 kV/cm. For a 2.4 GPa shock and the lowest peak field, a nearly constant current governed simply by the remanent polarization and the shock velocity was recorded. Both decreasing the shock pressure and increasing the electrical field resulted in reduced current generation, indicating a retardation of the depoling kinetics
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1 Sep 1999; 6 p; 11. American Physical Society Topical Conference on Shock Compression of Condensed Matter; Snowbird, UT (United States); 27 Jun - 2 Jul 1999; AC04-94AL85000; Also available from OSTI as DE00013987; PURL: https://www.osti.gov/servlets/purl/13987-Hy1ZAU/webviewable/
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