摘要
将Ni-纳米Al2O3复合电镀过程移置于10T平行强磁场（B∥J）中，探讨了有无平行强磁场条件下电流密度对镀层形貌及镀层中纳米颗粒含量的影响规律。结果表明，在10T平行强磁场下，氧化铝颗粒在复合镀层中呈网格状分布，并且网格的尺寸随着电流密度的增加而增加；电流密度显著影响镀层中纳米氧化铝的含量，不论是否施加磁场，当电流密度为2A·dm^-2时镀层中颗粒含量最高。施加强磁场时，可使镀层在低电流密度下获得较高的纳米颗粒含量。
In this paper, 10 Tesla parallel magnetic field （B∥J） was superimposed into the electrocodeposition process of Ni-nanoAl2O3 composite, and the effect of current density on the morphology and nano-particle content in membrane with or without magnetic field was discussed. The results indicated that the distribution of nano-particles show the shape of network with superimposing 10Tesla magnetic field, and the size of the single network cell will be increased when the current density was increased. Whenever superimposing magnetic field or not, there is a peak value of particle content when current density reached 2A·dm^-2, however, even in lower current density, high concentration of nano-particle could be obtained when superimposing magnetic field.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A09期3562-3566,共5页
Journal of Functional Materials
基金
上海市科学技术委员会重点基础研究资助项目（03JC14029）
国家自然科学基金资助项目（50574055）
关键词
强磁场
复合共沉积
镍-纳米氧化铝镀层
微涡流
high magnetic field
composite electrodeposittion
nickd-nano-alumina membranec
micro-vortex flow
