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 = 100 K Locality: synthetic _database_code_amcsd 0019103 5.082 6.736 6.512 90 90 90 Pnma atom x y z Uiso Fe1 .1835 .0579 .3337 .013 Fe2 .0339 .25 .8381 .013 C .8950 .25 .4485 .036