Preparation of porous BaTiO3-based ceramics by high-energy ball-milling process
| Autor: | Jae-Geun Ha, Kyeongsoon Park, Tae-Whan Lim, Jun-Gyu Kim |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Mechanical Engineering Mixing (process engineering) Sintering Condensed Matter Physics Microstructure Grain size Mechanics of Materials Electrical resistivity and conductivity visual_art visual_art.visual_art_medium General Materials Science Ceramic Composite material Porosity Ball mill |
| Zdroj: | Materials Letters. 60:1505-1508 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2005.11.061 |
| Popis: | Porous BaTiO3-based ceramics containing potato-starch (0–15 wt.%) were prepared by wet mixing and the effect of high-energy ball-milling time (1–20 h) on the electrical property and microstructure of the porous ceramics has been investigated. With increasing potato-starch content and ball-milling time, the porosity of the BaTiO3-based ceramics containing potato-starch increased and decreased, respectively. The grain size decreased and increased, with increasing potato-starch content and ball-milling time, respectively. The room-temperature electrical resistivity of the porous ceramics slightly increased with increasing potato-starch content, and decreased with increasing ball-milling time. PTCR jump of the porous ceramic was slightly increased with increasing potato-starch content, while it was slightly decreased with increasing ball-milling time. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect