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  Surreddi, K.B.; Scudino, S.; Nguyen, H.V.; Nikolowski, K.; Stoica, M.; Sakaliyska, M.; Kim, J.S.; Gemming, T.; Vierke, J.; Wollgarten, M.; Eckert, J.: Spark plasma sintering of gas atomized AI₈₇Ni₈La₅ amorphous powder. Journal of Physics: Conference Series 144 (2009), p. 012079/1-5

10.1088/1742-6596/144/1/012079

Abstract:
Bulk samples were prepared by in-situ devitrification and consolidation of gas atomized AI87Ni8La5 amorphous powder. Consolidation was carried out at different temperatures by spark plasma sintering, which leads to highly dense bulk specimem with a Microstructure consisting of fcc aluminum togelher with AI11La3 and AI,Ni intermetallic compounds. The consolidated powder displays a remarkably high compression stress, which depends on the sintering temperature and ranges between 900 and 1000 MPa, combined with plastic strain varying between 10 and 20 %. These results indicate that the mechanical proporties of the samples can be tuned within a wide range of strength and ductility as a function of the sintering temperature used.