Orthorhombic Zr₂Co₁₁ phase revisited

Authors

Xingzhong LI, University of Nebraska-LincolnFollow
Wenyong Zhang, University of Nebraska-LincolnFollow
David J. Sellmyer, University of Nebraska-LincolnFollow
X Zhao, US Department of Energy, Iowa State University
M C. Nguyen, US Department of Energy, Iowa State University
C Z. Wang, US Department of Energy, Iowa State University
K M. Ho, US Department of Energy, Iowa State University

Document Type

Article

Date of this Version

2014

Citation

Journal of Alloys and Compounds 611 (2014)

Comments

U.S. Government work

Abstract

The structure of the orthorhombic Zr₂Co₁₁ phase was revisited in the present work. Selected-area electron diffraction (SAED) and high-resolution electron microscopy (HREM) techniques were used to investigate the structure. They show the orthorhombic Zr₂Co₁₁ phase has a 1-D incommensurate modulated structure. The structure can be approximately described as a B-centered orthorhombic lattice. The lattice parameters of the orthorhombic Zr₂Co₁₁ phase have been determined by a tilt series of SAED patterns. A hexagonal network with a modulation wave has been observed in the HREM image and the hexagonal motif is considered as the basic structural unit.