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 1001243 _database_code_amcsd 0014306 7.7910 7.7910 5.6492 90 90 120 P31c atom x y z N1 0 0 .5 N2 1/3 2/3 .6346 N3 .655 .6117 .4552 N4 .3166 .3084 .727 Si1 .0801 .505 .6799 Si2 .235 .1496 .4584