Open AccessReheating of zinc-titanate sintered specimens
Author(s) -
Nebojša Labus,
Slavko Mentus,
Srđan Rakić,
Z.Z. Djuric,
Jelena Vujančević,
Maria Vesikolić
Publication year - 2015
Publication title -
science of sintering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 25
eISSN - 1820-7413
pISSN - 0350-820X
DOI - 10.2298/sos1501071l
Subject(s) - microstructure , materials science , thermogravimetric analysis , scanning electron microscope , atmosphere (unit) , differential thermal analysis , nitrogen , metallurgy , diffraction , analytical chemistry (journal) , composite material , chemical engineering , chemistry , optics , chromatography , thermodynamics , physics , organic chemistry , engineering
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
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