Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (06): 547-550.doi: 10.3866/PKU.WHXB19960614

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Physical Chemistry of Controlled-Hydrolysis of Propanol Zirconia Doped with Yttrium Nitrite

Peng Ding-Kun,Wan Chuan-Hao,Yang Ping-Hua,Liu Jin,Meng Guang-Yao   

  1. Department of Material Science and Engineering,Structure Research Laboratory,University of Science and Technology of China,Academia Sinica,Hefei 230026
  • Received:1995-09-15 Revised:1996-01-08 Published:1996-06-15
  • Contact: Yang Ping-Hua

Abstract:

The preparation of yttria-stabilised zirconia (YSZ) sol and the mechanismsof sol formation and sol-gel transition have been studied. The YSZ sol was prepared viacontrolled hydration of propanol zirconia alkoxide doped with yttrium nitrite. The sol formation process and gelling time are affected by many parameters such as water content,acetic acid content and the amount of propanol. The stability of the sol can be greatlyimproved by adding appropriate polymer.

Key words: Alkoxide, Sol-gel method