Oscillatory Structure of the Zn-Cu-Ti Single Crystals


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Structures obtained during Zn-Cu-Ti single crystal growth by the Bridgman method were investigated. The alloys of composition Zn-Cu0.1wt.%-Ti0.1wt.% were used for single crystals growth, which were produced at rate in the range of 1.8mm/h to 16mm/h. The Zn-Cu-Ti alloys were characterized by multiphase structure; in the solute-hardened matrix by Cu atoms exists a needle-shaped intermetallic phase Zn16Ti. The strong anisotropy of the hexagonal structure gives a significant influence on a second phase distribution in the matrix volume. In the range of the low growth rates (from 1.8mm/h to 10mm/h) oscillatory structures were observed. That effect vanished at the growth rates higher than 10mm/h. The observed oscillatory structures were characterized by existing periodic layers rich in the intermetallic phase of Zn16Ti interlaid with pure matrix (alpha phase Zn with Cu solute).



Edited by:

A. Roósz, V. Mertinger, P. Barkóczy and Cs. Hoó






G. Boczkal et al., "Oscillatory Structure of the Zn-Cu-Ti Single Crystals", Materials Science Forum, Vol. 649, pp. 113-118, 2010

Online since:

May 2010




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