zone melting


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zone melting

or zone refining
n.
A purification technique for crystalline substances in which a heating system passes slowly over a bar of the material to be refined, creating a molten region that carries impurities with it across the bar.
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Notice of Contract Award: Development of the study - frequency of active zone melting (l1) and early release of radioactive substances to the surrounding area (l2) within the extended external threat analysis is mochovce 3rd and 4th block
Thermal gradient also known as zone solidification, zone melting was first developed by William Gardner Pfann [40] at Bell Labs in the early nineteenth century to prepare high purity materials for manufacturing transistors.
p,T] = specific heat during transition h = specific enthalpy [tau] = width of melting/freezing zone melting zone T = temperature [T.