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 = 580 K Locality: synthetic _database_code_amcsd 0019127 5.085 6.776 4.524 90 90 90 Pnma atom x y z Uiso Fe1 .1902 .0573 .3307 .022 Fe2 .0342 .25 .8388 .022 C .9049 .25 .4490 .019