XRD SPECTRA AND STRUCTURE DETERMINATION OF A NOVEL COBALT- BISMUTH BIMETALLIC SYSTEM I.M.Odeh Physics Department, Yarmouk University, Irbid 211-63, JORDAN. firstname.lastname@example.org This work presents a detailed XRD patterns and structure determination of a novel cobalt- bismuth (Co-Bi) bimetallic system. A number of compositions namely Co20Bi80, Co40Bi60, Co60Bi40 and Co80Bi20 have been prepared by a precipitation method. These compositions crystallize in the following lattices : The Co2Bi8 powder has an orthorhombic lattice with the following lattice parameters: a = 10.176473 ± 0.001248 Å, b = 8.221081± 0.000711 Å, c = 6.280924 ± 0.000854 Å, V = 525.47 Å3. The Co4Bi6 powder has a monoclinic lattice with the lattice parameters: a = 12.00 Å, b =2.83846 Å, c = 5.78311 Å, β = 102.0006 °, V= 192.68 Å3. The Co6Bi4powder has a monoclinic lattice with the lattice parameters: a = 5.84897 Å, b = 13.98597 Å, c = 3.45509 Å, β= 99.6199 °, V = 278.66 Å3. The Co8Bi2 powder has a monoclinic lattice with the lattice parameters: a = 3.81270 Å, b = 14.03145 Å, c = 3.59253 Å, β=113.1290 °, V = 176.74 Å3.  C. Dong, J. Appl. Cryst. (1999). 32, 838 – 838 “PowderX: Windows-95-based program for powder X-ray diffraction data processing”.
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