Corrosion Resistance of Ceramic Materials in Metallic Neodymium and NdF3-LiF-Nd2O3 System

摘要：

Corrosion resistant properties of Si<,3>N<,4>-SiC and TiB<,2> at high temperature were studied. The experiments were carried out in metallic neodymium and NdF<,3>-LiF-Nd<,2>O<,3> system, respectively. Corrosion temperature was 1100℃ and the holding time of corrosion experiments was 24h. Corrosion products were analyzed by XRD and SEM, and corrosion behavior and corrosion mechanism of the experiments were studied. The results showed that Si<,3>N<,4>-SiC was corroded seriously in the above-mentioned two systems. A few of compounds were found on the surface of Si<,3>N<,4>-SiC, and surface structure of the Si <,3>N<,4>-SiC samples was loosened. The corrosion resistance of TiB<,2> was better than that of Si<,3>N <,4>-SiC. Oxidation resistance of TiB<,2> at high temperature should be enhanced.

关键词： Si<,3>N<,4>-SiC TiB<,2> ceramic materials corrosion resistance neodymium electrolysis rare earths

作者: Luo Xudong(罗旭东) Wang Zhaowen(王兆文) Shi Zhongning(石忠宁) Hu Xianwei(胡宪伟) Gao Bingliang(高炳亮) Tu Ganfeng(涂赣峰)

作者单位: School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 444-447

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）