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Investigation on the Morphological Instability during Directional Solidification of a Transparent Alloy during Sounding Rocket Flights

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Abstract:

The movement and morphological change of a solid-liquid interface in directional solidification was investigated during two sounding rocket flights. By using the transparent binary alloy Succinonitrile-Acetone the dynamic processes at the solidification front could be observed directly. Both the planar interface growth, the onset of instability and the characteristic features of the interface morphology, i.e. the evolution of the primary spacing and amplitudes of the cells and dendrites were evaluated. The comparison with a calculation of the morphological instability based on the theoretical model of Warren and Langer showed a good agreement concerning the critical time and velocity of the solidification front.

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Periodical:

Materials Science Forum (Volume 508)

Pages:

463-472

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.508.463

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Online since:

March 2006

Authors:

A. Weiß, Laszlo Sturz, Gerhard Zimmermann

Keywords:

Cell Amplitude, Directional Solidification, Morphological Instability, Primary Spacing, Solid-Liquid Interface, Transparent Alloy

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] K. Leonartz 1996: PhD thesis RWTH Aachen (1996).

Google Scholar

[2] B. Kauerauf, G. Zimmermann, L. Murmann, S. Rex: Journal of Crystal Growth 193 (1998), p.701.

Google Scholar

[3] S. Rex, B. Kauerauf, G. Zimmermann: Advances in Space Research 29 / 4 (2002), p.511.

Google Scholar

[4] G. Zimmermann, S. Rex, B. Kauerauf: ESA SP-454 (2000), p.605.

Google Scholar

[5] G. Zimmermann, S. Rex, A. Weiß: Proc. International Conference on Solidification Science and Processing, Bangalore, India, (2001), p.91.

Google Scholar

[6] L. Sturz, G. Zimmermann, T. Fuhrmeister, M. Mathes, S. Rex, B. Kauerauf: Met. Materials Transactions A35 (2004), p.239.

Google Scholar

[7] C. W. Lan, C. J. Shih, W. T. Hsu 2004: Journal of Crystal Growth 264 (2004), p.379.

Google Scholar

[8] A. Weiß: PhD thesis RWTH Aachen (2000).

Google Scholar

[9] A. Weiß, G. Zimmermann, S. Rex, S.R. Coriell: Materials Science Forum Vol. 329-330 (2000), p.277.

Google Scholar

[10] A. Weiß, G. Zimmermann 2003: ESA SP-530 (2003), p.101.

Google Scholar

[11] J.A. Warren, J.S. Langer: Physical Review E 47 (1993), p.2702.

Google Scholar

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