Isothermally coupled peritectic solidification for a hyper-peritectic alloy under pure diffusive conditions is presented. For this purpose, directional solidification experiments were performed aboard the International Space Station using a model system for peritectic layer solidification patterns. At constant temperature gradient of 3.0 K/mm and for pulling velocities ranging from 0.12 µm/s to 0.09 µm/s, coupled peritectic growth was observed. At lower pulling velocities, contrary to expectations, only a planar solidification front of the pro-peritectic phase was detected. Two effects were noticed: a significant effect of the pro-peritectic interface on the capability of the peritectic phase to nucleate and, in the further course of the experiments, a dynamic change of the coupled peritectic growth microstructure.
CITATION STYLE
Mogeritsch, J., Sillekens, W., & Ludwig, A. (2022). In Situ Observation of Coupled Growth Morphologies in Organic Peritectics Under Pure Diffusion Conditions. In Minerals, Metals and Materials Series (pp. 1429–1441). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-030-92381-5_136
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