磁流体的稳定性研究  

Stability of magnetorheologic fluid

作　　者：谭锁奎[1] 郭红燕[1] 吴敏[1] 纪松[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103

出　　处：《兵器材料科学与工程》2009年第5期84-87,共4页Ordnance Material Science and Engineering

摘　　要：采用实体显微镜、沉降观察等方法研究磁流体的沉降稳定性、温度稳定性和团聚稳定性,给出改善磁流体稳定性的措施。研究表明:磁流体的沉降稳定性分为软性沉降和硬性沉降,在-40～120℃内温度稳定性良好;经2 160 h放置后观察,具有良好的时效稳定性。添加表面活性剂可显著改善磁流体的沉降稳定性和团聚稳定性。This paper studies sedimentation stability,temperature stability and agglomerative stability of MR fluid by using stere-omicroscope and sedimentation observation method,the measures of improving stability have been given. The results show that the stability of MR fluid is divided into soft and hard sedimentation, and has good temperature stability between -40-120 ℃, and a good aging stability during the observation period of 2 160 h. Addition of surface active agent can significantly modify the sedimentation stability and agglomerative stability.

关 键 词：磁流体 稳定性 软性沉降 硬性沉降 

分 类 号：TM284[一般工业技术—材料科学与工程]