X-Ray Diffraction Study on Symmetry of β-Mn Structure

Abstract

The precession camera method of X-ray diffraction has revealed for β-Mn structure that 10 strong reciprocal-lattice points of {221} and {310}, form a slightly deformed decagon on the (1, 2.3, 5) plane. The symmetry and the local structure of the β-Mn structure are discussed in relation to the icosahedral symmetry.