Cohenite Wood I G, Vocadlo L, Knight K S, Dobson D P, Marshall W G, Price G D, Brodholt J Journal of Applied Crystallography 37 (2004) 82-90 Thermal expansion and crystal structure of cementite, Fe3C, between 4 and 600 K determined by time-of-flight neutron powder diffraction Note: T = 80 K Locality: synthetic _database_code_amcsd 0019102 5.082 6.735 6.512 90 90 90 Pnma atom x y z Uiso Fe1 .1842 .0567 .3322 .013 Fe2 .0336 .25 .8410 .013 C .8924 .25 .4490 .038