Bulk YBCO growth monitored by in situ high-temperature magnetic susceptibility

In Situ high-temperature Susceptibility Measurement (ISSM) is a method to monitor the phase transformations in a material in real time depending on its susceptibility change. Examples are given where the effects of composition, heating rate and geometry on the growth of YBCO bulk sample have been investigated by ISSM. Differences in the behaviour during melting and solidification are shown for MTG and PMP samples because of their composition. The effect of processing condition is illustrated by higher heating rate increasing the temperature solidification onset, and the effect of geometry by a comparison of the thin-wall geometry of a drilled sample with a plain one, showing a faster growth rate.