Preparation of Y-TZP ceramic fibers by electrolysis-sol-gel method |
| |
Authors: | Jianjun Li Xiuling Jiao Dairong Chen |
| |
Affiliation: | (1) Department of Chemistry, Shandong University, Jinan, 250100, P.R. China |
| |
Abstract: | Polycrystalline yttria stabilized tetragonal Zirconia (T-ZrO2) fibers were obtained by pyrolysis of gel fibers using zirconium oxychloride octahydrate as raw material. The spinnable zirconia
sol was prepared by electrolyzing the zirconium oxychloride octahydrate solution in the presence of acetic acid and sugar
(sucrose, glucose or fructose), in which the molar ratio of CH3COOH/ZrOCl2 · 8H2O and sugar/ZrOCl2 · 8H2O was in the range of 1.0–4.0 and 0.2–0.4, respectively. The relation of spinnability to the shape of colloidal particle was
discussed. The as-prepared zirconia fibers sintered at different temperatures show smooth and crack-free surface with the
diameter of 5–10 μm. Slow heating rate below 600 °C and then sintering at 1,400 °C for 30 min were necessary to obtain the
dense tetragonal zirconia ceramic fibers, the particles composed the fibers had the size of ∼150 nm. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|