Вид документа : Шифр издания : 54/E 27 Автор(ы) : Shevchenko V. G., Kononenko V. I., Lukin N. V., Latosh I. N., Chupova I. A. Заглавие : Effect of Conditions under Which Powdered Lanthanum is Heated on Its Interaction with Air Место публикации : Combustion, Explosion, and Shock Waves. - 1999. - Vol. 35, № 1. - С. P. 77-79: il. Примечания : Bibliogr. : p. 79 (9 ref.) ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): порошки лантана--термогравиметрия--оксид лантана--нагревание Аннотация: Thermogravimetric, d i f f e r e n t i a l - t h e r m o g r a p h i c , chemical, and x-ray phase analysis methods are used to study the effect of the rate at which powdered lanthanum is heated in air on the nature of the reaction products. It is found that for heating rates of up to 150 K/rain the interaction with air ends in the formation of lanthan~m oxide. At heating rates of 150-600 K/rain, a nitride phase is formed along with LazO3. Further increases in the heating rate lead to formation of the oxide phase only. The reasons for this behavior of lanthanum are examined. Доп.точки доступа: Shevchenko, V. G.; Kononenko, V. I.; Lukin, N. V.; Latosh, I. N.; Chupova, I. A.