Explosive Ferroelectric Power Supply of Flux Compression Generator

Useful electrical pulses of a few hundred kilowatts lasting for several microseconds can be obtained by the depolarization process of PZT95/5 ferroelectric ceramics.In this paper,taking account of the dielectric relaxation,and finite resistance,a new mathematical model of PZT95/5 ferroelectric ceramics subjected to normal-mode shock wave is suggested.Explosive shock wave techniques have also been used to investigate the response of PZT95/5 ferroelectric ceramics with inductive loads in experiments.The predictions from the model have a good agreement with observed results.In addition,an explosive ferroelectric generator composed of explosive shock wave generators,electric units,and additional capacitors is design to power small-size helical flux compression generators.The test results with the maximal output energy of up to 80 J are given and experimental results are also considered.