Nierite Billy M, Labbe J, Selvaraj A, Roult G Materials Research Bulletin 18 (1983) 921-934 Modifications structurales du nitrure de silicium en fonction de la temperature _cod_database_code 1001245 _database_code_amcsd 0014308 7.6140 7.6140 2.9123 90 90 120 P6_3/m atom x y z N1 1/3 2/3 .25 N2 .3356 .033 .25 Si1 .1799 .7733 .25