The Effect of Heat Treatment Temperature on Property and Structure ofNi Group Core-shell ParticlesER

摘要：

By means of mechanical properties test and microstructure graph observation the relationship of heat treatment temperature of core-shell Ni/TiO2 group particles with mechanical properties under different electric field has been researched. It is found that the FT-IR, XRD morphology of heat treatment at350°C is different from the one at100 °C, the shear stress of same composition ER decreased with heat treatment temperature increasing. But the leakage current density of ER shows contrary result. That is because the leakage current density of ER decreased with the increasing heat treatment temperature. Electrorheological fluid is kind of suspension formed by polar particles scattering into oil liquid. When electric field was exerted, the viscosity and the shear strength of electrorheological fluid instantaneous changed, the low viscosity fluid flow easily become difficult flow fluid or high viscosity solid. When the electric field was removed, it also can be back to liquid in milliseconds time, A reversible control mechanical behavior makes it have wide application in transportation, hydraulic equipment and machinery manufacturing, constructional engineering and sensor technology field1.2 The heat treatment temperature of particles is one of most important of many factors affecting the ER property. Ni group particles combined with Ni core, surrounded Ni/TiO2 shell and Urea, SDBS polar molecule. Particles must have been heated under certain temperature before using in order to remove the moisture and etc. But the particle shows different structure and properties because of different modifier polar molecule giving different behaviour after heat treatment, and decides the properties of ER modified by Urea、 SDBS、 TEA and etc 3 This paper focuses on the research of heat treatment temperature and structure, properties of electrorheological fluid under different electric fields.

关键词： Electrorheological fluid Morphology Particle concentration

作者: Suokui TAN Xiaoping SONG li Qiao Hongyan GUO Song JI Hong ZHAO

作者单位: Ningbo Branch of China Academy of Ordnance Science, Ningbo, China Xi, an Jiaotong University, Xi, an Xi, an Jiaotong University, Xi, an China Ningbo Branch of China Academy of Ordnance Science, Ningbo, China Dalian University of Technology, Dalian, China

会议类型: 国际会议

会议名称: 2011 International Conference on Advanced Material Research(ICAMR 2011)(2011年先进材料研究国际会议)

会议地点: 重庆

会议语种:英文

页码: 437-440

在线出版日期: 2011-01-21（万方平台首次上网日期，不代表论文的发表时间）