Temperature stability and fabrication of Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 fibers with Pt core
Temperature stability and fabrication of Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 fibers with Pt core
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DOI：
10.1177/1045389x12451658
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发表时间：
2012-10
影响因子：
2.7
通讯作者：
Jun Luo;J. Qiu;K. Zhu;Jianzhou Du;H. Ji;Xuming Pang
中科院分区：
文献类型：
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作者：
Jun Luo;J. Qiu;K. Zhu;Jianzhou Du;H. Ji;Xuming Pang
为了提高金属芯压电陶瓷纤维的高温电学性能，选用了具有高居里温度的Pb（Zn 1/3 Nb 2/3）O3-Pb（Zr，Ti）O3系压电陶瓷。采用挤压法制备了Pb（Zn 1/3 Nb 2/3）O3-Pb（Zr，Ti）O3金属芯压电陶瓷纤维。研究了Pb（Zn 1/3 Nb 2/3）O3-Pb（Zr，Ti）O3陶瓷在不同煅烧温度和烧结温度下的显微结构和电学性能。与以前的金属芯压电陶瓷纤维相比，Pb（Zn 1/3 Nb 2/3）O3-Pb（Zr，Ti）O3纤维显示出较低的压电和介电性能（ε 33 T = 1272，k31 = 0.253，d31 = −120 pC N−1）。Pb（Zn 1/3 Nb 2/3）O3-Pb（Zr，Ti）O3陶瓷的居里温度约为295°C，远高于0.55Pb（Ni 1/3 Nb 2/3）O3-0.45Pb（Zr0.3Ti0.7）O3陶瓷的居里温度（110°C）。Pb（Zn 1/3 Nb 2/3）O3-Pb（Zr，Ti）O3纤维的最高使用温度可达150°C，其温度稳定性远优于0.55Pb（Ni 1/3 Nb 2/3）O3-0.45Pb（Zr0.3Ti0.7）O3纤维。
In order to improve the electrical properties of metal-core piezoelectric ceramic fibers at high temperature, Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 piezoelectric ceramics with high Curie temperature were selected. The Pb(Zn1/3Nb2/3) O3–Pb(Zr,Ti)O3 metal-core piezoelectric ceramic fibers were successfully fabricated by extrusion Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 powder around a platinum wire. The microstructure and electrical properties of Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 ceramics with different calcining and sintering temperatures were investigated. Compared with the previous metal-core piezoelectric ceramic fibers, the Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 fibers showed lower piezoelectric and dielectric properties ( ε 33 T = 1272 , k31 = 0.253, and d31 = −120 pC N−1). However, the Curie temperature of Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 ceramics is about 295°C, much higher than that of 0.55Pb(Ni1/3Nb2/3)O3–0.45Pb(Zr0.3Ti0.7)O3 ceramics (110°C). The Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 fibers can be used at the highest temperature of 150°C, and the temperature stability of Pb(Zn1/3Nb2/3)O3–Pb(Zr,Ti)O3 fibers is much better than that of 0.55Pb(Ni1/3Nb2/3)O3–0.45Pb(Zr0.3Ti0.7)O3 fibers.