Title: Design and preparation of flier-plate material with graded wave impedance

Authors: C.B. Wang, Q. Shen, L.M. Zhang

Addresses: State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China. ' State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China. ' State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China

Abstract: A W-Mo-Ti system flier-plate material with graded wave impedance, which can realise quasi-isentropic compression and has important application in dynamic high-pressure technology, was prepared. The impedance distribution of the flier-plate was designed via numerical simulation. Then, W-Mo and Mo-Ti composites with gradually-changed compositions were stacked and sintered at 1473K-30MPa-10min to prepare the W-Mo-Ti system flier-plate material. The wave impedance of the flier-plate changed quasi-continuously along the thickness direction in a parabolic distribution form. By using the W-Mo-Ti flier-plate, a quasi-isentropic compression wave with a slowly-rising front was obtained.

Keywords: flier-plate material; wave impedance; design; densification; quasi-isentropic compression; high-pressure technology; simulation; composites; stacking; sintering.

DOI: 10.1504/IJMPT.2010.034262

International Journal of Materials and Product Technology, 2010 Vol.39 No.1/2, pp.83 - 94

Published online: 31 Jul 2010 *

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