Abstract
A study was conducted to investigate the effect of elemental diffusion on temperature coefficient of piezoelectric properties in KNN-based lead-free composites. KNN and KNLNS-BT powders were calcined at 950 °C for 3 hours and KNN was sintered at 1100 °C for 2 hours to conduct the investigations. Sintered KNN was crushed using mortar and pestle and its particle size was controlled to be in the range of 25-150 μm by sieving. Crushed KNN powders and ball-milled KNLNS-BT powders were mixed in the weight ratio of 0.5/0.5. The two type I and type II structures were pressed into disks under pressure of 100 kgf/cm2 and sintered at 1060 °C for 2 hours. The samples were poled in silicone oil at 120 °C by applying DC field of 4 kV/mm for 60 minutes and all electrical measurements were done on aged samples.
Original language | English (US) |
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Pages (from-to) | 3961-3965 |
Number of pages | 5 |
Journal | Journal of Materials Science |
Volume | 45 |
Issue number | 14 |
DOIs | |
State | Published - Jul 2010 |
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Ceramics and Composites
- Mechanical Engineering
- Polymers and Plastics
- General Materials Science
- Materials Science (miscellaneous)