Electrostatic Sample Levitator for Containerless Materials Processing
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properties molten alloys↗
Engineering topics
Rhim, W.
Publications and source records attributed to Rhim, W..
Measurements of Thermophysical Properties of Molten Materials from Oscillating and Rotating Drops
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thermophysical properties molten materials↗
Measurements of Thermophysical Properties of Molten Materials from Oscillating and Rotating Drops
Certain physical properties of a molten drop, levitated, for example, in a high temperature eletrostatic levitator can be determined by inducing appropriate mechanical excitations on the drop.
Measurements Thermophysical Properties Molten Mate↗
Non-Contact Measurements of Thermophysical Properties of Titanium at High Temperature
Four thermophysical properties of both the solid and the liquid titanium measured using the high-temperature electrostatic levitator at JPL are presented. These properties are the density, the thermal expansion coefficient, the constant pressure heat capacity, and the hemispherical total emissivity.
temperature electrostatic levitator↗
Non-Contact Electrical Conductivity Measurement Technique for Molten Metals
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molten metals electrical conductivity↗
Metallic Glass Formation in Highly Undercooled Zr(sub 41.2)Ti(sub 13.8)Cu(sub 12.5)Ni(sub 10.0)Be(sub 22.5) during Containerless Electrostatic Levitation Processing
Various sample sizes with masses up to 80 mg were undercooled below Tg (the glass transition temperature) while electrostatically levitated.
glass transition temperature electrostatically lev↗
Pulsed NMR spectroscopy
Method gives results approximating those of classical continuous-irradiation method but in less time. Method also makes it possible to measure chemical shifts and spin-lattice relaxation times with improved sensitivity. Equipment can be used for adiabatic demagnetization experiments, measurements of rotating-frame spin/lattice relaxation times, and accurate measurements of exact resonance points. When measuring relaxation times, pulse technique can be very effective since pulses may be limited in amplitude and length to prevent spin system from being driven into saturation.
Burum, D. P.↗