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 = 4.2 K Locality: synthetic _database_code_amcsd 0019098 5.082 6.733 4.512 90 90 90 Pnma atom x y z Uiso Fe1 .1841 .0571 .3329 .014 Fe2 .0336 .25 .8409 .014 C .8942 .25 .4503 .041