摘要
以碱式碳酸镍和柠檬酸为原料，通过络合反应形成具有良好可纺性的溶胶，经过干法纺丝纺成前驱体纤维，再经高温热处理还原制得了直径约为10～20μm的金属镍纤维。研究了不同原料、添加剂的加入对溶胶前驱体可纺性的影响，探讨了不同热处理气氛对纤维物相的影响。制得的镍纤维在2～18GHz范围内其复介电常数、复磁导率随测试频率的增大而降低，表现了较好的频散特性。
The nickel fibers had been successfully prepared with citric acid and nickel carbonate basic as the starting reagents by sol-gel method. This process included preparation of sol precursor with good spinnability, dry spinning and pyrolysis. The diameter of the fibers obtained was about 10-20μm. In this article, different raw materials and additive agent were studied to improve the spinnability of sol precursor, and phase of fibers was also investigated in different decomposition atmosphere. The complex permittivity ε and complex permeability μ of nickel fibers are decreased with increasing of the experimental frequency in 2-18GHz band, which represents good dispersion characteristics.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2006年第11期40-44,共5页
Journal of Materials Engineering
关键词
溶胶-凝胶法
镍纤维
制备
电磁特性
sol-gel method
nickel fibers
preparation
electromagnetic properties
