Preparation and Electrical Property of Calcia Stabilized Zirconia Ceramics

Chang Lian Chen; Hong Quan Wang; Jia You Ji; Ma Ya Luo; Bo Wu; Ming Wei Hu; Hao Fu Xia; Zhi Liang Huang

doi:10.4028/www.scientific.net/KEM.616.157

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Dielectric Properties and Optical Absorption of Single-Crystalline BaTi₂O₅ Synthesized Using High-Purity BaCO₃as Source Material
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 616Preparation and Electrical Property of Calcia...

Preparation and Electrical Property of Calcia Stabilized Zirconia Ceramics

Abstract:

In this paper, using ZrO₂ and Ca (NO₃)•4H₂O as raw materials, we prepared a series of calica stabilized zirconia (CSZ) ceramics by pressureless sintering method. The results show that the relative densities of all sintered samples are above 90%, and the sintered samples are composed of cubic, tetragonal and monoclinic ZrO₂, and the main phase is cubic ZrO₂ and tetragonal ZrO₂. The content of cubic phase increases with the increase of sintering temperature and adding CaO content. The grain size of the sintered samples is relatively uniform and some pores exist. Increasing the additive amount of CaO, the conductivity first rises and then decreases, and the conductivity value of the sample containing 5wt% CaO is the maximum. When the sintering temperature is up to 1600 ^oC, the conductivity of the sample containing 5wt% CaO is up to 0.016S•cm^-1 at 800 ^oC. Furthermore, the conductivity of sintered samples is increasing with the increase of test temperature according to the Arrhenius equation.

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Key Engineering Materials (Volume 616)

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157-165

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https://doi.org/10.4028/www.scientific.net/KEM.616.157

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Online since:

June 2014

Authors:

Chang Lian Chen*, Hong Quan Wang, Jia You Ji, Ma Ya Luo, Bo Wu, Ming Wei Hu, Hao Fu Xia, Zhi Liang Huang

Keywords:

AC Impedance, Conductivity, CSZ, Electrical Properties, Preparation

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