1. Amorphous states of melt-spun alloys in the system Dy–(Mn-Fe)–(Ge,Al)6</subgt;.
- Author
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Kerschl, P., Rößler, U. K., Gemming, T., Müller, K.-H., Sniadecki, Z., and Idzikowski, B.
- Subjects
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ALLOYS , *AMORPHOUS substances , *CRYSTALLIZATION , *TRANSMISSION electron microscopy , *CALORIMETRY - Abstract
Amorphous states have been found in rapidly quenched alloys in the pseudoternary system DyMn6-x-yFex+yGe6-xAlx (x,y=0 to 6). The amorphous state is formed in competition to the crystallization of ternary (1-6-6 rare earth-transition metal-metal) compounds. The melt-spun ribbons were investigated by x-ray diffraction, high resolution transmission electron microscopy, differential scanning calorimetry, and magnetization measurements. All amorphous samples exhibit multistep crystallization behavior without a clear indication for a glass transition below the first exothermic effect. Some of the amorphous alloys exhibit a magnetic ordering above room temperature and complex magnetic transitions similar to the properties of crystalline 1-6-6 compounds. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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