0.05Pb(Mn1/3Sb2/3)O3-0.48PbZrO3-0.47PbTiO3 壓電材料之開發研究

Investigation of 0.05Pb(Mn1/3Sb2/3)O3-0.48PbZrO3-0.47PbTiO3 Piezoelectric Ceramic Materials

葉宗鑫(Tzung-Shin Yeh)

指導教授 ： 林和龍

大同大學/工程學院/材料工程學系所/碩士(2004年)

摘要

本研究是以0.05Pb(Mn1/3Sb2/3)O3-0.48PbZrO3-0.47PbTiO3(簡稱PbMnSb-PZ-PT)及在PbMnSb-PZ-PT中添加入不同重量百分比的Pb(Ta1/2Sc1/2)O3兩系統為研究對象，利用傳統的固態反應法，配合不同的煆燒及燒結溫度，探討其對壓電體各物理特性的影響。
由於積層陶瓷的燒結方式，乃是與內部電極層疊合共燒，所以降低燒結溫度，不僅可以降低污染，節省能源，更可大幅減少電極成本。成份PbMnSb-PZ-PT中，在1200℃煆燒三小時，1100℃、1150℃與1200℃燒結三小時，其Qm值皆超過1676，其中以1100℃時有最佳的Qm值為1707；1150℃與1200℃燒結三小時，則有最佳kp值超過0.6，同時也有最佳ε33值超過850。過高的燒結溫度則會導致Qm值、kp值與ε33值的下降，這可能是由於高溫燒結造成嚴重的鉛揮發所致。
而在PbMnSb-PZ-PT中添加入Pb(Ta1/2Sc1/2)O3，當添加量為0.5 wt%，在1050℃燒結三小時，其Qm值可維持在1526；在1050℃和1100℃燒結三小時，其kp值可達0.584以上，同時也有較好的ε33值可達837以上。相同的燒結溫度下，隨著Pb(Ta1/2Sc1/2)O3添加量的增加，其Qm值、kp值與ε33值都有下降的趨勢。在添加入Pb(Ta1/2Sc1/2)O3後，最佳的Qm值雖然比未添加時的最佳Qm值還低，但是整體的燒結溫度卻可降低50℃~100℃，且其kp值與ε33值都有提升的效果。

關鍵字

機電耦合係數 ； 機械品質因素 ； 壓電材料

並列摘要

In this study, 0.05Pb(Mn1/3Sb2/3)O3-0.48PbZrO3-0.47PbTiO3 (so-called PbMnSb-PZ-PT) and various weight percent of Pb(Ta1/2Sc1/2)O3 in 0.05Pb(Mn1/3Sb2/3)O3-0.48PbZrO3-0.47PbTiO3 two systems were prepared by several combination of calcined temperature and sintering temperature to observe the difference of physical properties.
In the multilayer ceramic, the internal electrodes are sintered together. So the reduction of sintering temperature not only can decrease the pollutions and save energy, but also can diminish the cost of the electrodes substantially. Although with lower sintering temperature, the piezoelectric properties of ceramics are decayed usually. By means of suitable calcination at higher temperature and then sintering at low temperature would be solution of obtaining good piezoelectric properties and low cost of fabrication.
In PbMnSb-PZ-PT, the Qm value are all above 1676 at calcined temperature 1200℃ and sintering temperatures 1100℃、1150℃ and 1200℃, the best Qm value is 1707 at sintering temperature 1100℃. The best kp values are 0.605、0.601 and ε33 values are 856、853 at sintering temperature 1150℃ and 1200℃, respectively. The Qm、kp and ε33 are decrease because the over high sintering temperature, this might be high sintering temperature cause serious PbO vaporization.
Adding various weight percent of Pb(Ta1/2Sc1/2)O3 in 0.05Pb(Mn1/3Sb2/3)O3-0.48PbZrO3-0.47PbTiO3 system. The Qm value can maintain at 1526 at sintering temperature 1050℃ when the amount of adding Pb(Ta1/2Sc1/2)O3 is 0.5 wt%. The kp values can reach on 0.584、0.602 and ε33 values are 837、843 at sintering temperature 1050℃ and 1100℃, respectively. The Qm、kp and ε33 are decrease with the increase of amounts of adding Pb(Ta1/2Sc1/2)O3. Although the best Qm value after adding Pb(Ta1/2Sc1/2)O3 is smaller than the best Qm value without adding Pb(Ta1/2Sc1/2)O3, the sintering temperature can decrease 50℃ to 100℃. Even more, the kp values and ε33 values can increase.

並列關鍵字

Electromechanical copling factor ； Mechanical quality factor ； Piezoelectric material

參考文獻

2. Valasek, J. Phys. Rev.17,422-3(1921).

3. Thuraure H. The Rochester Engineer 21,745,77(Nov.1942).

7. Wul, B.M. and Goldman, I.M.(1945) Dokl. Akad. Nauk SSSR 46,154-7;Compt. Rend. Acad. Sci. URSS 46,139-42.

8. Coursey, P.R. and Brand, K.G. (1946). Nature 157,297-8

14. Wul, B.M. and Goldman, I.M.(1945) Dokl. Akad. Nauk SSSR 49,179-82; Compt. Rend. Acad. Sci. URSS 49,177-80.