$Pb(Zr_{0.56}Ti_{0.44}O_{3}+x[wt%]Cr_{2}O_{3})$세라믹스의 길이진동에 대한 온도안정성

Temperature stability for length extensional vibration of $Pb(Zr_{0.56}Ti_{0.44}O_{3}+x[wt%]Cr_{2}O_{3})$ceramics

Recently mobile communication fields need piezoelectric ceramic resonators and filters as possible as small. The length-extensional vibration mode of a rectangular piezoelectric cesamic plate has the advantage of the small size, but the mode has not been studied sufficiently because it was not used extensively until now. In this paper, PZT + x[wt%l $Cr_20_3$ ceramics with rhombohedra1 phase were fabricated. And temperature stability for the mode of the ceramic specimen was investigated. Contrary to our expectations, addition of the stabilizer, $Cr_20_3$ did not promote the temperature stability for the mode in the PZT ceramic specimen with rhombohedra1 phase.