Coating Y2O3 nano-particles with ZrO2-additive via precipitation method for colloidal processing of highly transparent Y2O3 ceramics
| Autor: | Xiaodong Li, Ren Yi, Mu Zhang, Xiaotian Geng, Ji-Guang Li, Qi Zhu, Xudong Sun, Zhongchao Fu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Precipitation (chemistry) Nanoparticle 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences law.invention Colloid Chemical engineering Coating law visual_art 0103 physical sciences Materials Chemistry Ceramics and Composites Zeta potential Slurry visual_art.visual_art_medium engineering Calcination Ceramic 0210 nano-technology |
| Zdroj: | Journal of the European Ceramic Society. 39:4996-5004 |
| ISSN: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2019.07.011 |
| Popis: | In the present work, transparent Y2O3 ceramics were prepared via colloidal processing method using ZrO2-coated nano-sized Y2O3 powders. The chemical precipitation method was adopted for the coating of Y2O3 raw powder. The evolution of the coated-ZrO2 layer upon calcination was studied. The rheological behaviors of the slurries of Y2O3 powders coated with different content of ZrO2-additive were investigated. The pHIEP of ZrO2-coated Y2O3 powders shows intermediate values between that of raw Y2O3 and ZrO2 powders. As the ZrO2-coating concentration increased from 0 to 5.0 at%, the magnitude of the negative zeta potential at pH > pHIEP shows a general trend of increment, whereas it decreased at pH |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect