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Full-Text Articles in Mining Engineering

Compact Autonomous Completely Explosive Pulsed Power System Based On Transverse Shock Wave Demagnetization Of Nd₂Fe₁₄B And Magnetic Flux Compression, Sergey I. Shkuratov, Evgueni F. Talantsev, Jason Baird, Allen H. Stults, Larry L. Altgilbers Nov 2005

Compact Autonomous Completely Explosive Pulsed Power System Based On Transverse Shock Wave Demagnetization Of Nd₂Fe₁₄B And Magnetic Flux Compression, Sergey I. Shkuratov, Evgueni F. Talantsev, Jason Baird, Allen H. Stults, Larry L. Altgilbers

Mining and Nuclear Engineering Faculty Research & Creative Works

The design and performance of a compact autonomous completely explosive pulsed power system based on two physical effects, the transverse shock wave demagnetization of Nd2Fe14B high-energy hard ferromagnets and magnetic flux compression, are presented. A transverse shock wave ferromagnetic generator (FMG) served as a seed source, and a compact helical magnetic flux compression generator (FCG) was used as a pulsed power amplifier. Results of a theoretical and experimental study demonstrated reliable operation of the proposed FMG-FCG system. The methodology for analytical calculation of seed current amplitude is developed.


Pulsed Charging Of Capacitor Bank By Compact Explosive-Driven High-Voltage Primary Power Source Based On Longitudinal Shock Wave Depolarization Of Ferroelectric Ceramics, Sergey I. Shkuratov, Jason Baird, Evgueni F. Talantsev, Yaroslav Tkach, Larry L. Altgilbers, Allen H. Stults, Stanislav V. Kolossenok Jan 2005

Pulsed Charging Of Capacitor Bank By Compact Explosive-Driven High-Voltage Primary Power Source Based On Longitudinal Shock Wave Depolarization Of Ferroelectric Ceramics, Sergey I. Shkuratov, Jason Baird, Evgueni F. Talantsev, Yaroslav Tkach, Larry L. Altgilbers, Allen H. Stults, Stanislav V. Kolossenok

Mining and Nuclear Engineering Faculty Research & Creative Works

Results of the investigation of the operation of autonomous ultracompact explosive-driven high-voltage primary power sources based on longitudinal (when the shock wave propagates along the polarization vector P0) shock wave depolarization of ferroelectric materials in the open circuit and charging modes are presented. The energy-carrying elements of shock wave ferroelectric generators (FEGs) were poled lead zirconate titanate (PZT) Pb(Zr52Ti48)O3 polycrystalline piezoelectric ceramic disks with volume 0.35 cm3. The PZT modules were shock compressed in the stress range from 1.5 to 3.8 GPa by a longitudinal shock wave generated by high explosives. In the charging mode ...