Diffusion behavior of Ag electrodes into (Bi1/2Na1/2)TiO3 ceramics
Diffusion behavior of Ag electrodes into (Bi1/2Na1/2)TiO3 ceramics
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DOI：
10.2109/jcersj2.16016
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发表时间：
2015-07
影响因子：
1.1
通讯作者：
Naoki Iwagami;H. Nagata;I. Sakaguchi;T. Takenaka
中科院分区：
文献类型：
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作者：
Naoki Iwagami;H. Nagata;I. Sakaguchi;T. Takenaka
用二次离子质谱（西姆斯）研究了电极材料银（Ag）在（Bi 1 / 2 K1/ 2）TiO 3（BKT）陶瓷中的扩散。本文应用二次离子质谱（西姆斯）的一些分析方法测定了银在BKT陶瓷中的扩散系数。银的深度分布显示BKT陶瓷从表面到更深侧的简单浓度梯度。根据这些分布，计算并通过分析获得Ag的扩散系数。在700 ~ 900°C温度范围内，Ag在BKT陶瓷中扩散的指前因子为2.2 × 106 cm 2 / s，扩散激活能为296 kJ/ mol。
The diffusion of silver, Ag, as the electrode material in (Bi 1 / 2 K 1 / 2 )TiO 3 (BKT) ceramic were studied by means of a secondary ion mass spectrometry (SIMS). Some analytical methods of SIMS were applied to obtain Ag diffusion coef fi cient in BKT ceramics. Depth pro fi le of Ag showed a simple concentration gradient from the surface towards the deeper side in BKT ceramics. From these pro fi les, the diffusion coef fi cients of Ag were calculated and obtained by the analysis. The temperature dependence of Ag diffusion in BKT ceramics was described by 2.2 © 10 6 cm 2 / s of pre-exponential factor and 296kJ / mol of the activation energy in the temperature range of 700 900°C as diffusion treatments.