Piezoelectric and mechanical properties of Pb(Zr0.52Ti0.48)O3–Pb(Y2/3W1/3)O3 (PZT–PYW) ceramics

被引：0
|
作者：
SEOK-JIN YOON
JONG H MOON
HYUN-JAI KIM
机构：
[1] Korea Institute of Science and Technology,Division of Ceramics
[2] Chonnam National University,Department of Inorganic Materials Engineering, College of Engineering
来源：
Journal of Materials Science | 1997年 / 32卷
关键词：
Fracture Toughness; Fracture Mode; Piezoelectric Property; Rhombohedral Phase; Domain Switching;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The piezoelectric and mechanical properties of hot-pressed PZT–PYW were investigated. As the Pb(Y2/3W1/3)O3 concentration increased, the piezoelectric constant (d33) also increased up to a concentration of 3 mol% PYW reaching a value of 485×10-12 CN-1, but beyond this concentration it continuously fell. A decrease in grain size with increasing Pb(Y2/3W1/3)O3 content in the system changed the transgranular fracture mode to an intergranular fracture mode, resulting in an enhancement in K1c from 0.83 MPam1/2 at 1 mol% PYW to 1.1 MPam1/2 at 3 mol% PYW. Consequently, the highest d33 and K1c values were obtained at the composition 0.97Pb(Zr0.52Ti0.48) O3–0.03Pb(Y2/3 W1/3)O3.
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页码：779 / 782
页数：3
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