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 1001247 _database_code_amcsd 0014310 7.6272 7.6272 2.9182 90 90 120 P6_3/m atom x y z N1 1/3 2/3 .25 N2 .3399 .0357 .25 Si1 .1842 .7704 .25