Investigation on the preparation and properties of monodispersed Al2O3 ZrO2 nanopowder via Co-precipitation method

With Al2O3 as inhibitor (which can be etched after calcination), monodispersed Al2O3 ZrO2 nanopowder was successful prepared by co-precipitation method. The as-prepared powders were characterized by acoustic particle sizer (APS), SEM, TEM and XRD, respectively. Crystalline and non-agglomerated nanom...
Ausführliche Beschreibung

With Al2O3 as inhibitor (which can be etched after calcination), monodispersed Al2O3 ZrO2 nanopowder was successful prepared by co-precipitation method. The as-prepared powders were characterized by acoustic particle sizer (APS), SEM, TEM and XRD, respectively. Crystalline and non-agglomerated nanometric Al2O3 ZrO2 powders with very small crystallite size (∼7 nm) and narrow size distribution can be obtained. The relative yield was effected dramatically by pH and the ratio of MAHC: MZr. Green bodies have an ultrafine uniform microstructure without apparent macropore through 200 MPa CIP treatment. The relative density of the grains can be reached to ∼98.2% by sintering at 1050 °C for 4 h, with an average grain size ∼39 nm. Ausführliche Beschreibung