Solid Solution Limit and Densification of NiO Doped <TEX>$Pb(Zr_{0.525} Ti_{0.475})O_3$</TEX>

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J. Korean Ceram. Soc. > Volume 23(6); 1986 > Article

Journal of the Korean Ceramic Society 1986;23(6): 52.

NiO 첨가 $Pb(Zr_{0.525} Ti_{0.475})O_3$ 세라믹스의 치밀화의 고용한계

위성권, 김호기¹

진해기계창
¹한국과학기술원 재료공학과

Solid Solution Limit and Densification of NiO Doped $Pb(Zr_{0.525} Ti_{0.475})O_3$

ABSTRACT

$Pb(Zr_{0.525} Ti_{0.475})O_3$ piezoelectric ceramics both unmodified and doped with NiO were prepared by the conventional oxide techniques using sintering temperature from 900 to to 125$0^{circ}C$. The difference in densification process between unmodified and NiO doped PZT ceramics was studied by shrinkage vs. firing temperatures and it was caused by increasing defect concentration in calcining process of NiO doped PZT ceramics. And nickel oxide solubility limit for $Pb(Zr_{0.525} Ti_{0.475})O_3$ ceramics is shown to be at the range from 0.2wt% to 0.5wt% from this defect model micro-structures dielectric and piezolectric properties of Nio doped PZT ceramics.