本文選題：無鉛壓電陶瓷　切入點(diǎn)：正交實(shí)驗(yàn)　出處：《壓電與聲光》2017年01期 　論文類型：期刊論文

【摘要】：為提升Na_(0.5)Bi_(0.5)TiO_3-K_(0.5)Bi_(0.5)TiO_3(NBT-KBT)系無鉛壓電陶瓷壓電性能,開發(fā)新型無鉛壓電疊層驅(qū)動(dòng)器,該文采用單因素方差分析與正交試驗(yàn)設(shè)計(jì)方法優(yōu)化研究了0.8NBT-0.2KBT壓電陶瓷的極化工藝,最優(yōu)極化工藝為極化電場6kV/mm,極化溫度70℃,極化時(shí)間50 min,保壓時(shí)間21 min,測得壓電系數(shù)d33達(dá)到108pC/N;制備了無鉛陶瓷疊層驅(qū)動(dòng)器,并基于三角放大原理和柔性鉸鏈結(jié)構(gòu)設(shè)計(jì)一種新型外置放大機(jī)構(gòu),分別對有無外置放大機(jī)構(gòu)的疊層驅(qū)動(dòng)器微位移量進(jìn)行對比測試,結(jié)果表明,與有外置放大機(jī)構(gòu)的疊層驅(qū)動(dòng)器相比,直接驅(qū)動(dòng)的疊層驅(qū)動(dòng)器位移量放大了3.7倍,在150V驅(qū)動(dòng)電壓下位移量達(dá)到25μm。這種無鉛壓電陶瓷驅(qū)動(dòng)器具有大位移量、穩(wěn)定性及低成本等特性,有望應(yīng)用于微精密定位系統(tǒng)領(lǐng)域。
[Abstract]:In order to improve the piezoelectric properties of lead-free piezoelectric ceramics, a new type of lead-free piezoelectric laminated actuator was developed in order to improve the piezoelectric properties of the lead-free piezoelectric ceramics in the Naji-0.5Bihe, 0.5TiO3-TiO3-KBT.The polarization process of 0.8NBT-0.2KBT piezoelectric ceramics was optimized by means of single-factor variance analysis and orthogonal test design. The optimum polarization process is as follows: polarization electric field 6 kV / mm, polarization temperature 70 鈩，

本文編號(hào)：1604767