Open AccessZnTiO3 ceramic nanopowder microstructure changes during compaction
Author(s) -
Nebojša Labus,
Jugoslav Krstić,
Smilja Marković,
Dana Vasiljević Radović,
Maria Vesikolić,
Vladimir B. Pavlović
Publication year - 2013
Publication title -
science of sintering/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/sos1302209l
Subject(s) - materials science , compaction , porosimetry , agglomerate , scanning electron microscope , microstructure , ceramic , composite material , particle size , lubricant , particle size distribution , mineralogy , porosity , chemical engineering , porous medium , chemistry , engineering
ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterized. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy and atomic force microscopy. Pore size distribution was also determined by mercury porosimetry and nitrogen adsorption. Results revealed that with increasing pressure during compaction interagglomerate pores diminish in size until they reach some critical diameter related to the intra-agglomerate pore size