Мобильная версия

Доступно журналов:

3 288

Доступно статей:

3 891 637

 

Скрыть метаданые

Автор E F de Almeida
Автор J A C de Paiva
Автор M A B de Araújo
Автор E B Araújo
Автор J A Eiras
Автор A S B Sombra
Дата выпуска 1998-08-31
dc.description Activation energies for crystallization of 50 glasses, with x = 0, 5 and 10 mol%, were determined by differential thermal analysis (DTA). The structure was investigated by infrared and Mössbauer spectroscopy. Samples with x = 5 mol% of show larger activation energy . Absorptions at P-O-P, P=O, and units are presents in these glasses. P=O absorptions disappear at compositions with x = 5 and 10 mol% of , which shows absorption around , attributed to units. According to Mössbauer results high spin and at distorted octahedral sites are present in samples with x = 5 and 10 mol% of , thus working as a network modifier.
Формат application.pdf
Издатель Institute of Physics Publishing
Название Structure of iron niobophosphate glasses investigated by DTA, infrared and Mössbauer spectroscopy
Тип paper
DOI 10.1088/0953-8984/10/34/005
Electronic ISSN 1361-648X
Print ISSN 0953-8984
Журнал Journal of Physics: Condensed Matter
Том 10
Первая страница 7511
Последняя страница 7518
Выпуск 34

Скрыть метаданые