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 = 320 K Locality: synthetic _database_code_amcsd 0019114 5.081 6.755 4.515 90 90 90 Pnma atom x y z Uiso Fe1 .1845 .0584 .3330 .014 Fe2 .0347 .25 .8373 .014 C .8974 .25 .4502 .028