Investigation of Peritectic Solidification Morphologies by Using the Binary Organic Model System TRIS-NPG
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In: Materials, Vol. 13.2020, No. 4, 966, 21.02.2020.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Investigation of Peritectic Solidification Morphologies by Using the Binary Organic Model System TRIS-NPG
AU - Mogeritsch, Johann
AU - Abdi, Mehran
AU - Ludwig, Andreas
N1 - Publisher Copyright: © 2020 by the authors.
PY - 2020/2/21
Y1 - 2020/2/21
N2 - 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.
AB - 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.
KW - peritectic solidification
KW - ESA
KW - TRIS-NPG
KW - Bridgman-furnace
KW - MICRESS
UR - http://www.scopus.com/inward/record.url?scp=85081985456&partnerID=8YFLogxK
U2 - 10.3390/ma13040966
DO - 10.3390/ma13040966
M3 - Article
VL - 13.2020
JO - Materials
JF - Materials
SN - 1996-1944
IS - 4
M1 - 966
ER -
