| Popis: |
Nano-Sized ZrO2 Powders Were Synthesized from ZrOCl2•8H2O by Polyvinyl Alcohol-Gel Technology, Using Polyvinyl Alcohol (PVA) as a Monomer and Glutaraldehyde (GA) as a Cross-Linking Reagent. The Stability of the Gel Was Affected by Concentration of PVA and GA, Volume of ZrOCl2•8H2O. Moderate Strength of Gel Was Synthesized by Raw Materials of PVA (2%), ZrOCl2•8H2O (30~40 g) and GA (10ml). Nano-Sized ZrO2 Was Obtained Finally, with Uniform Particle Size and Good Dispersibility, and Size Was about 20 nm. Doped ZrO2 with Stabilized Tetragonal Crystal Was Obtained at Room Temperature. The Effect of Calcine Temperature on Phase Structure of ZrO2 Powders Has Been Investigated. |
