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Crystal structure modification of the rhombohedral Mu phase in a C-276 alloy

  • Raghavan Ayer (a1), J. C. Scanlon (a1), M. Watkins (a2), G. A. Vaughn (a2) and J. W. Steeds (a3)...

Abstract

A new hexagonal crystal structure modification of the rhombohedral Mu phase with A7B6 stoichiometry was observed in a cast alloy C-276. The hexagonal structure was determined to share the same lattice parameter along the a axis, while the dimension along the c axis was such that chex = 2/3crhomb. The space group of the hexagonal phase is suggested to be P 63/mmc and forms by a four-layer ABAB repeat, where A and B represent Zr4Al3 and MgCu2 structures, respectively. Details of the diffraction analysis are presented in this article.

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Crystal structure modification of the rhombohedral Mu phase in a C-276 alloy

  • Raghavan Ayer (a1), J. C. Scanlon (a1), M. Watkins (a2), G. A. Vaughn (a2) and J. W. Steeds (a3)...

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