Effect of elemental diffusion on temperature coefficient of piezoelectric properties in KNN-based lead-free composites

被引：4

作者：

Ahn, Cheol-Woo ^{[1
]}

Park, Chee-Sung ^{[1
]}

Dittmer, Robert ^{[2
]}

Hong, Soon-Hyung ^{[3
]}

Priya, Shashank ^{[1
]}

机构：

[1] Virginia Tech, Mat Sci & Engn, CEHMS, Blacksburg, VA 24061 USA

[2] Tech Univ Darmstadt, FG NAW, D-64287 Darmstadt, Germany

[3] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea

来源：

JOURNAL OF MATERIALS SCIENCE | 2010年 / 45卷 / 14期

关键词：

(1-X)(NA0.5K0.5)NBO3-XBATIO(3); CERAMICS;

D O I：

10.1007/s10853-010-4550-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：3961 / 3965

页数：5

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