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 = 440 K Locality: synthetic _database_code_amcsd 0019120 5.078 6.763 4.518 90 90 90 Pnma atom x y z Uiso Fe1 .1858 .0593 .3341 .016 Fe2 .0356 .25 .8338 .016 C .9015 .25 .4495 .018