Producing a Heusler Alloy Single Crystal

Abstract:

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The Heusler alloy Cu2MnAl is a ferromagnetic compound that is in the form of a single crystal suitable for the simultaneous monochromatization and polarization of a neutron beam. Our purpose is to produce such a monochromator. Pre-cast polycrystalline samples were resolidified in crucibles made of different materials with different sizes in the Universal Multizone Crystallizator (UMC) developed in the Institute of Material Sicence at University of Miskolc. Single crystals were obtained as a result of the resolidification. The quality of the single crystals was verified with neutron diffraction, then the ones having suitable quality were oriented crystallographically by using the Laue method. By using the spark machining method, seed crystals with suitable orientation were cut from the single crystals, and oriented single crystals will be grown from them.

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Periodical:

Edited by:

A Roósz, M. Rettenmayr and Z. Gácsi

Pages:

125-130

DOI:

10.4028/www.scientific.net/MSF.508.125

Citation:

Z. Veres and A. Roósz, "Producing a Heusler Alloy Single Crystal", Materials Science Forum, Vol. 508, pp. 125-130, 2006

Online since:

March 2006

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$38.00

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[4] A. Roosz, D. Watring, T. Roosz, I. Teleszky and L. Toth : A new technology to produce Shaped Cast Single Crystal Proceedings of 4 th Decennial International Conference on Solidification Processing, Sheffield, 7-10 July, (1997).

[5] D. Goldschmidt: Einkristalline Gasturbinenschaufeln aus Nickelbasis-Legirungen, Mat. wiss. und Werkstofftech, 1994, 25, 311-320 Fig. 5. The Laue method (a) and a photo taken by this method (b) a b.

DOI: 10.1002/mawe.19940250804

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