Preprint Article Version 1 This version is not peer-reviewed

Investigation on Peritectic Solidification Morphologies by Using the Binary Organic Model System TRIS-NPG

Version 1 : Received: 14 February 2020 / Approved: 15 February 2020 / Online: 15 February 2020 (15:35:01 CET)

A peer-reviewed article of this Preprint also exists.

Mogeritsch, J.P.; Abdi, M.; Ludwig, A. Investigation of Peritectic Solidification Morphologies by Using the Binary Organic Model System TRIS-NPG. Materials 2020, 13, 966. Mogeritsch, J.P.; Abdi, M.; Ludwig, A. Investigation of Peritectic Solidification Morphologies by Using the Binary Organic Model System TRIS-NPG. Materials 2020, 13, 966.

Journal reference: Materials 2020, 13, 966
DOI: 10.3390/ma13040966

Abstract

Under pure diffusive growth conditions, layered peritectic solidification is possible. In reality, the competitive growth of the primary alfa-phase and the peritectic beta-phase revealed some complex peritectic solidification morphologies due to thermo-solutal convection. The binary organic components TRIS-NPG were used as model system for metal-like solidification. The transparency of the high-temperature non-faceted phases allows studying the dynamic of the solid/liquid interface which 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 which led to competitive peritectic growth morphologies. Additionally, the competitive growth was solved numerically to interpret the observed transparent solidification patterns.

Subject Areas

peritectic solidification; ESA; TRIS-NPG, Bridgman-furnace, MICRESS

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