Corrosion Behavior of SrZrO3@SiO2 Composite in Sodium Hydroxide

摘要：

　　SrZrO3@SiO2 composite materials,in which perovskite polycrystalline SrZrO3 was wrapped by amorphous SiO2,were prepared.The corrosion behavior of the samples was studied under hydrothermal conditions in 40% NaOH solution.The composite materials were easily corroded in the sodium hydroxide solution by reason of the presence of a continuous amorphous SiO2 phase.The corrosion rate increased with the increasing of the porosity because the pores provided channels,via which corrosion solution could enter into the sample,and increased the contact area between corrosion solution and the sample.There was a nonlinear relation between the corrosion and time.

关键词： Corrosion behavior Sodium hydroxide SrZrO3@SiO2 composite materials

作者: Zhimin Guo Xiaoxia Tang Yue Zhang

作者单位: School of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083 P.R.China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 1630-1632

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）