Macroporous ZrO2 ceramics prepared from colloidally stable nanoparticles building blocks and organic templates.
ZrO2 macroporous materials with well-ordered structures were prepared using nano-ZrO2 particles as the building materials and polystyrene spheres as the organic templates. A well-dispersed nano-ZrO2 suspension with a narrow particle size distribution was prepared by deagglomeration of as-received nano-ZrO2 powders via ultrasonication, and then centrifugation was performed to remove agglomerated bigger particles. Negatively charged polystyrene spheres were uniformly coated with positively charged nano-ZrO2 particles by means of electrostatic attraction at pH 4. Green samples were prepared by slip casting from colloidally stable suspension of nano-ZrO2 coated polystyrene spheres. ZrO2 macroporous materials with well-ordered microstructure derived from the nano-ZrO2 coated polystyrene spheres.
Jia
Yu
Y
National Institute of Advanced Industrial Science and Technology, Anagahora 2266-98, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan.
Duran
Cihangir
C
Hotta
Yuji
Y
Sato
Kimiyasu
K
Watari
Koji
K