Abstract
Milling of BaTiO3 + 3 wt% ZrO2 was carried out in an attritor and a planetary mill during different times. When milled in air, BaTiO3 decomposes into BaCO3 + TiO2 and a solid solution between TiO2 and ZrO2 is formed. The CO2 required to form BaCO3 is taken from the air. However, when a planetary mill with a degased and sealed container is used, the formation of a solid solution between BaTiO3 and ZrO2 occurs. In case of the system BaTiO3 + 3 wt % Y2O 3 the solid solution was formed by milling in a shaker mill (SPEX) in air. Annealing the milled mixture at 1000 °C produces YBa 3Ti2O8.5. This suggests that the solid solution of Y2O3 and BaTiO3 formed by mechanical alloying is oversaturated.
Original language | English |
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Pages (from-to) | 87-94 |
Number of pages | 8 |
Journal | Ceramic Engineering and Science Proceedings |
Volume | 24 |
Issue number | 4 |
State | Published - 2003 |
Externally published | Yes |
Event | 27th International Cocoa Beach Conference on Advanced Ceramics and Composites: B - Cocoa Beach, FL, United States Duration: 26 Jan 2003 → 31 Jan 2003 |