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 = 380 K Locality: synthetic _database_code_amcsd 0019117 5.080 6.759 4.518 90 90 90 Pnma atom x y z Uiso Fe1 .1845 .0592 .3347 .018 Fe2 .0350 .25 .8355 .018 C .8997 .25 .4495 .026