An allotropic transformation induced by mechanical alloying

Chatterjee, P. P. ; Pabi, S. K. ; Manna, I. (1999) An allotropic transformation induced by mechanical alloying Journal of Applied Physics, 86 (10). pp. 5912-5914. ISSN 0021-8979

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Official URL: http://jap.aip.org/resource/1/japiau/v86/i10/p5912...

Related URL: http://dx.doi.org/10.1063/1.371612

Abstract

This study concerns a hitherto unknown bcc→fcc allotropic transformation in Nb induced by the mechanical alloying of Nb80Al20. This metastable transformation is preceded by a gradual increase in the lattice parameter of bcc-Nb. The stored excess energy in nanocrystalline bcc-Nb may be responsible for the bcc→fcc phase transition.

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