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 1001246 _database_code_amcsd 0014309 7.6170 7.6170 2.9134 90 90 120 P6_3/m atom x y z N1 1/3 2/3 .25 N2 .3359 .0328 .25 Si1 .1784 .7749 .25