为了改善Mg2Ni系A2B型合金的电化学储氢性能,在复合不同量镍粉(0％,50％,100％,150％)的基础上,以不同球磨时间(10h,20h,30h,40h)制备球磨态Mg24Y2Ni10Cu2合金。利用X射线衍射仪(XRD)和扫描电镜(SEM)分析了球磨态、充放电后合金的微观结构,并测试了球磨态下合金的电化学储氢性能,比较了不同球磨时间和复合镍量对合金电化学性能的影响。结果 表明,随着球磨时间
The development of electromagnetic wave absorbing materials is of greatsignificance for the improvement of stealth technology and enhancement of nationalmilitary strength.Organic-inorganic nanocomposi
Amorphous metal fiber has high corrosion resistance,excellent mechanical properties and is good material for reinforcing concrete matrix.The structure of amorphous metal fiber was tested by X-ray diff
The Sr1-xSmxFe12-xCuxO19 (0≤x≤0.2) materials were prepared by chemical co-precipitation technique.The products were characterized by X-ray diffraction (XRD),fourier transform infrared spectroscopy (FT
The MM substituted[Nd(1-x)MMx]FeB casting strips were prepared with induction melting and strip casting furnace.The saturation magnetization (Ms) and saturation magnetic field (Hs) decreased with the
研究了冷轧无取向电工钢在酸洗连轧和连续退火时采用带温生产的工艺。研究发现：热轧板在100～120℃左右为酸轧机组上料，酸洗时钢板几乎没有温升，带温的热轧电工钢板酸洗效果良好，洗净率达100％；活套内钢板因带温的软化作用而运行平稳，冷轧后钢板板型良好，偏差在8μm以下。冷轧板在60～80℃时为连退机组上料，碱洗时钢板几乎没有升温，带温冷轧板碱洗效果好，钢板表面缺陷明显减少，洗净率可达100％；钢板因