Reheating of zinc-titanate sintered specimens

Autor: Labus N., Mentus S., Rakić S., Đurić Z.Z., Vujančević J., Nikolić M.V.
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Science of Sintering, Vol 47, Iss 1, Pp 71-81 (2015)
Druh dokumentu: article
ISSN: 0350-820X
1820-7413
DOI: 10.2298/SOS1501071L
Popis: The scope of this work was observing dimensional and heat transfer changes in ZnTiO3 samples during heating in nitrogen and air atmosphere. Interactions of bulk specimens with gaseous surrounding induce microstructure changes during heating. Sintered ZnTiO3 nanopowder samples were submitted to subsequent heating. Dilatation curves and thermogravimetric with simultaneous differential thermal analysis TGA/DTA curves were recorded. Reheating was performed in air and nitrogen atmospheres. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). Microstructures obtained by scanning electron microscopy (SEM) of reheated sintered samples are presented and compared. Reheating in a different atmosphere induced different microstructures. The goal was indicating possible causes leading to the microstructure changes. [Projekat Ministarstva nauke Republike Srbije, br. OI172057 i br. III45014]
Databáze: Directory of Open Access Journals