A powder injection molding process is developed and optimized for piezoelectric PAN-PZT ceramics. Torque rheometer experiments are conducted to determine the optimal solids loading, and the rheological property of the feedstock is evaluated using a capillary rheometer. Appropriate debinding conditions are chosen using a thermal gravity analyzer, and the debound specimens are sintered using sintering conditions determined in a preliminary investigation. Piezoelectric performance measures, including the piezoelectric charge constant and dielectric constant, are measured to verify the developed process. The average values of the measured piezoelectric charge constant and dielectric constant are 455 pC/N and 1904, respectively. Powder injection molded piezoelectric ceramics produced by the optimized process show adequate piezoelectric performance compared to press-sintered piezoelectric ceramics.

1. Introduction
2. Experimental Procedures
3. Results and Discussion
4. Conclusions
Acknowledgements
References

• Jun Sae Han(Department of Mechanical Engineering, Pohang University of Science and Engineering (POSTECH))
• Seong Jin Park(Department of Mechanical Engineering, Pohang University of Science and Engineering (POSTECH)) Corresponding author
• Dong Yong Park(Solar Thermal Laboratory, Korea Institute of Energy Research (KIER))
• Dongguo Lin(Department of Mechanical Engineering, Pohang University of Science and Engineering (POSTECH))
• Kwang Hyun Chung(Kyungwon Industry, Co. Ltd.)
• Ravi Bollina(Mahindra Ecole Centrale, Survey No: 62/1A, Bahadurpally Jeedimetla, Hyderabad 500043, India)