ZnTiO3 ceramic nanopowder microstructure changes during compaction

Science of Sintering

卷:45

关键词: compaction;    nanopowder;    pore size distribution;    nitrogen adsorption;    mercury porosimetry;   

DOI  :  10.2298/SOS1302209L

来源: DOAJ

【 摘 要 】

ZnTiO3 nanopowder as a constitutive component in compact production wasprimarily characterized. Scanning electron micrographs of as received powderwere recorded. Mercury porosimetry and nitrogen adsorption were alsoperformed on loose powder. Particle size distribution in a water powdersuspension was determined with a laser particle size analyser. Compaction wasperformed on different pressures in a range from 100 to 400 MPa using theuniaxial double sided compaction technique without binder and lubricant.Micrographs of compacted specimens were obtained using scanning electronmicroscopy and atomic force microscopy. Pore size distribution was alsodetermined by mercury porosimetry and nitrogen adsorption. Results revealedthat with increasing pressure during compaction interagglomerate poresdiminish in size until they reach some critical diameter related to theintra-agglomerate pore size.

【 授权许可】

Unknown