Mechanical and electrical properties of small amount of oxides reinforced PZT ceramics

• Published in: Ceramics international Vol. 29; no. 5; pp. 499 - 503
• Main Authors: Xiang, Ping-Hua, Dong, Xian-Lin, Chen, Heng, Zhang, Zhen, Guo, Jing-Kun
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 2003; Elsevier Science
• Subjects: Applied sciences; B. Composites; Building materials. Ceramics. Glasses; C. Electrical properties; C. Mechanical properties; Ceramic industries; Chemical industry and chemicals; D. PZT; E. Actuators; Electrotechnical and electronic ceramics; Exact sciences and technology; Technical ceramics; E. Actuators; B. Composites; C. Mechanical properties; D. PZT; C. Electrical properties; Ceramic matrix composite; Scanning electron microscopy; Electrical properties; Lead titanates; Mechanical properties; Molybdenum oxide; Dispersion reinforced material; PZT; Experimental study; Oxide ceramics; Piezoelectric ceramics; Composite material; Lead zirconates; Fracture toughness; Tungsten oxide; Transition metal compounds; Sintering; Yttrium oxide; Manufacturing; Actuator; Electroceramics
• ISSN: 0272-8842; 1873-3956
• DOI: 10.1016/S0272-8842(02)00193-1

Piezoelectric PZT ceramics with small amount (0.1–1.0 wt.%) of oxides (Y 2O 3, MoO 3, WO 3) were prepared by conventional sintering method. Small amount of second phase doped PZT ceramic with high fracture strength showed suitable piezoelectric properties for high power and high reliable actuator applications. Especially, the fracture strength of PZT/0.1 wt.% Y 2O 3 composite was 1.5 times higher than that of monolithic PZT and the piezoelectric properties were also increased. When the second phase addition was up to 1.0 wt.%, the electrical properties were deteriorated due to the refinement of the microstructure of PZT ceramics.