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Clathrate materials are extended Si, Ge and Sn cage-like solids with sp3-hybridized networks [1-2]. As a new generation of energy conversion materials, clathrates have received increasing attention over the past few years [3]. Clathrates with an open network are tailorable materials containing polyhedral cages, which can capture alkali metal, alkaline-earth metal and europium atoms. These atoms on...
This paper presents a method, which simultaneously estimates the electrical conductivity and magnetic permeability of porous metals. Porous Cu and Fe manufactured by the lost carbonate sintering process have been tested. An air-cored solenoid coil was designed for the measurements of rod-shaped samples when inserted coaxially with the coil. It was theoretically found that the phase-frequency response...
This paper studies the electrical properties of open-celled aluminium foams manufactured by a novel sintering-dissolution process (SDP) using non-destructive eddy current testing. Experimental measurement results are first presented by means of an impedance analyser under swept frequency testing for the determination of electrical conductivity of Al foams. A double air-cored solenoidal sensor has...
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