Two-Wave Shock Structures in the Ferroelectric Ceramics Barium Titanate and Lead Zirconate Titanate
Two ferroelectric ceramics, Pb(Zr0.52, /Ti0.48)O3 with J Wt % Nb2O5 and pure BaTiO3, were studied under shockwave loading. Plane shock waves having pressures ranging from 2 to 175 kbar were produced by high-explosive driving systems. Measurements were made with a streak camera and shock-detecting ferroelectric wafers. Both ceramic materials showed evidence of a two-wave structure over a wide range of shock pressures. Results indicated that these two-wave structures were characteristic of the elastic properties of the materials, and were not caused by phase tnansitions from ferroelectric to parraelectric. Pressure-volume curves were presented for both materials. Electrical charge released to an external load by Pb(Zr0.52, Ti/ sub 0.48/)O3 with 1 wt% Nb2O5 was measured as a function of the pressure of a shock moving parrallel to the axis of polarization. The primary mechanism in this reduction of polarization by shocks was found to be, not a phase transition or domain switching, but rarely a reduction of the dipole moment by axial compression.
- Research Organization:
- Los Alamos Scientific Lab., N. Mex.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-000552
- OSTI ID:
- 4779012
- Journal Information:
- Journal of Applied Physics, Vol. 33, Issue 7; Other Information: Orig. Receipt Date: 31-DEC-63; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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