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 = 60 K Locality: synthetic _database_code_amcsd 0019101 5.082 6.735 6.512 90 90 90 Pnma atom x y z Uiso Fe1 .1836 .0571 .3322 .014 Fe2 .0335 .25 .8401 .014 C .8944 .25 .4487 .040