V 92 Vorob'ev, Yu. P. Compositions of Two Morphological Forms of beta-Si6 – zAlzOzN8 – z / Yu. P. Vorob'ev, G. P. Shveikin // Inorganic Materials. - 2000. - Vol. 36, № 12. - P. 1239-1242 : il. - Bibliogr. : p. 1242 (14 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СИАЛОН -- МОРФОЛОГИЯ БЕТА-СИАЛОНОВ -- СТЕХИОМЕТРИЯ Аннотация: Analysis of experimental data on the formation of beta-sialon (beta-Si6- zAlzOzN8- z) at high temperatures (1300–1500°C) indicates that two morphological forms—fibers and spherical particles—differ in chemical composition: z = 3.58 in the fibers and 2.60 in the spherical particles. The formation of fibers is assumed to follow the whisker growth mechanism, while the spherical particles are likely to grow via diffusion Полный текст |