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 = 340 K Locality: synthetic _database_code_amcsd 0019115 5.081 6.756 4.517 90 90 90 Pnma atom x y z Uiso Fe1 .1844 .0592 .3343 .016 Fe2 .0345 .25 .8362 .016 C .8982 .25 .4488 .028