Only Formation of ZrAl3 Phase Obtained by Self-Propagating Reaction from Zr-Al Elemental Powders

Mou Sheng Song; Mao Wu Ran

doi:10.4028/www.scientific.net/AMR.239-242.2805

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Only Formation of ZrAl3 Phase Obtained by...

Only Formation of ZrAl₃ Phase Obtained by Self-Propagating Reaction from Zr-Al Elemental Powders

Abstract:

In this paper, the problem of ZrAl₃ compound obtained by self-propagating reaction as the only and favorable formation phase was considered. It shows that the ZrAl₃ phase could be synthesized by self-propagating reaction in Zr-Al system and was especially identified as the only phase by XRD, which was further confirmed by DTA. Using the theories of structural lattice of ZrAl₃, Modified Effective Heat of Formation (MEHF) model, coupled with the First Nucleation Rule (FNR), the only formation of ZrAl₃ phase in Zr-Al system could be reasonably interpreted.