Abstract
Superfine powders with compositions 8 mol%CeO2-0.25 mol%Y2O3-ZrO2(8Ce-0.25Y-TZP), 8Ce-0.50Y-TZP and 8Ce-0.75Y-TZP were prepared by the coprecipitation method and sintered at 1500°C for 2, 3 and 6 hours respectively. 8Ce-0.25Y-TZP having martensitic transformation temperatures (Ms) above room temperature does not exhibit shape memory effect (SME) at ambient temperature. 8Ce-0.50Y-TZP shows the best SME, and the largest recoverable strain of 1.18% in the specimens sintered at 1500°C for 6 hours is attained. The Ms of the materials is closely related to its strength, and other factors such as grain size and density also have influence on the Ms.
| Original language | English |
|---|---|
| Pages (from-to) | 385-388 |
| Number of pages | 4 |
| Journal | Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University |
| Volume | 35 |
| Issue number | 3 |
| State | Published - Mar 2001 |
| Externally published | Yes |
Keywords
- Ceramics
- Martensitic transformation
- Shape memory effect