本文采用凝胶前驱体纤维热分解还原法制备了镍、镍-钴、铁、镍-铁四种磁性金属纤维。
In this paper, the Ni, Ni-Co, Fe and Ni-Fe magnetic fibers were prepared by thermal decomposition reducing method of gel precursor fibers.
研究了从低品位硫钴精矿焙砂浸出液中钻的富集及其与杂质的分离问题。
Study is made on the upgrading of Co from low-grade concentrate calcine leachateand its separation from impurities.
目的研究在不同参数设置下激光焊接对钴铬合金焊接强度的影响。
Objective To study the effect of different factor settings on the strength of Co Cr alloy welded by laser.
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