ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Electric power of hundreds of kilowatts can be produced in a few microseconds by suddenrelease of bound charge on the surface of ferroelectric ceramic through shock wave compression. In orderto understand the depolarization process, knowledge of the discharge behavior of ferroelectric ceramicunder shock wave compression is essential. Gas-gun facility has been used to investigate theshock-induced depolarization kinetics of tin-modified lead zirconate titanate ferroelectric ceramic.Experiments were conducted in the normal mode in which the shock propagation vector wasperpendicular to the remanent polarization. Two kinds of specimens with the ferroelectric-toantiferroelectrictransformation hydraulic pressure respectively at 80 MPa and 180 MPa were tested. Theoutput currents as a function of load resistance were measured. A computation model was developed todescribe the electrical behavior of PSZT ceramic under shock wave compression, which adequatelyexplained the observed experimental results
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.21.pdf
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