The crystal structure of Zr5Al3

Abstract

The crystal structure of Zr/sub 5/Al/sub 3/ was determined by powder techniques, and the values of sin/sub 2/ theta and observed and calculated intensities are tabulated. The cell dimensions are a = 8.184 plus or minus 0.002 A, c = 5.702 plus or minus 0.002 A, and c/a = 0.697. The calculated density with two units of Zr/sub 5/Al/sub 3/ in the cell is 5.393 g/cm/sup 3/. The measured density was 5.61 g/cm/sup 3/. The space group and atomic positions are given. (L.T.W.)