title: Isochoric heating of foamed metal using pulsed power discharge as a making technique of warm dense matter.
abstract: To generate well-defined warm dense state for evaluating electrical conductivity by using pulsed-power discharge, we have proposed an isochoric heating of foamed metal. Isochoric heating can be achieved by surrounding the foamed metal with a rigid-walled sapphire capillary. We evaluate the temperature and electrical conductivity of the foam∕plasma based on the line-pair method of the foam∕plasma emission and on the voltage-current waveforms. The electrical conductivity observed agrees with previous experiments and predictions. Thus, the proposed technique yields the electrical conductivity of warm dense matter with a well-defined temperature.
authors.affiliation: Department of Electrical Engineering, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Amano
authors.forename: Yasutoshi
authors.initials: Y
authors.lastname: Miki
authors.forename: Takuya
authors.initials: T
authors.lastname: Takahashi
authors.forename: Toru
authors.initials: T
authors.lastname: Sasaki
authors.forename: Takashi
authors.initials: T
authors.lastname: Kikuchi
authors.forename: Nob
authors.initials: N
authors.lastname: Harada