Abstract
A compact, convenient and economic design of a temperature gradient furnace for synchrotron microradiography is described. The thermal control of the furnace, in terms of cooling rate and temperature gradient, was achieved by programmable temperature controllers, and provided necessary thermal conditions for real time observations of dendritic solidification in real alloys. The experiments at the Advanced Photon Source (APS), Argonne National Laboratory (ANL) demonstrate that the design is well suited to the melting and solidification of alloys with liquidus temperatures up to intermediate ranges (≈650 °C), such as aluminium alloys. Real time observations with this furnace of dendritic solidification in Al–25 wt% Cu alloy by synchrotron microradiography show interesting and promising results.
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