Investigation of Peritectic Solidification Morphologies by Using the Binary Organic Model System TRIS-NPG
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Abstract
Under pure diffusive growth conditions, layered peritectic solidification is possible. In reality, the competitive growth of the primary α-phase and the peritectic β-phase revealed some complex peritectic solidification morphologies due to thermo-solutal convection. The binary organic components Tris-(hydroxylmenthyl) aminomethane-(Neopentylglycol) were used as a model system for metal-like solidification. The transparency of the high-temperature non-faceted phases allows for the studying of the dynamic of the solid/liquid interface that lead to peritectic solidification morphologies. Investigations were carried out by using the Bridgman technic for process conditions where one or both phases solidify in a non-planar manner. Different growth conditions were observed, leeding to competitive peritectic growth morphologies. Additionally, the competitive growth was solved numerically to interpret the observed transparent solidification patterns.
Details
Original language | English |
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Article number | 966 |
Number of pages | 16 |
Journal | Materials |
Volume | 13.2020 |
Issue number | 4 |
DOIs | |
Publication status | Published - 21 Feb 2020 |