以乙醇为反应介质用NaBH4还原铁金属离子,得到用于制备汞基磁流体的非晶纳米铁合金粒子.用原子吸收光谱、透射电子显微镜、X射线粉末衍射和磁天平等对合金粒子和相应的汞基磁流体的性质进行了表征.铁合金粒子中氧化物的含量(质量分数)为1.2%,粒径12 nm,饱和磁化强度16400 kA/m.这种磁粒子的氧化物含量低,表面金属性强,能够充分分散于汞中,得到饱和磁化强度为210 kA/m、稳定的汞基磁流体(性能保持18个月不变).
参考文献
| [1] | R.E.Rosenweig,Chemical Engineering Progress,53,53(1989) |
| [2] | S.Odenbach,Advances in Colloid and Interface Science,46,263(1993) |
| [3] | S.Linderoth,L.H.Rasmussen,S.Morup,Journal of Applied Physics,69,5124(1991) |
| [4] | E.E.Carpenter,Journal of Magnetism and Magnetic Materials,225,17(2001) |
| [5] | J.G.Zhang,H.J.Jin,W.X.Xu,Y.J.Lin,W.C.Wang,Journal of Magnetism and Magnetic Materials,242～245,621(2002) |
| [6] | A.Yedra,L.F.Barquin,J.C.Gomez,Q.A.Pankhurst,Journal of Magnetism and Magnetic Materials,254～255,14(2003) |
| [7] | S.Linderoth,S.Morup,Journal of Applied Physics,69,5256(1991) |
| [8] | J.Rivas,M.A.Lopez,M.G.Bonome,R.G.Duro,J.M.Greneche,Journal of Magnetism and Magnetic Materials,122,1(1993) |
| [9] | S.Linderoth,S.Morup,M.D.Bentzon,Journal of Magnetism and Magnetic Materials,83,457(1990) |
| [10] | D.H.Chen,C.H.Hsieh,Journal of Materials Chemistry,12,2412(2002) |
| [11] | G.D.Forster,L.F.Barquin,R.L.Bilsborrow,Journal of Materials Chemistry,9,2537(1999) |
| [12] | S.G.Kim,J.R.Brock,Journal of Colloid and Interface Science,116,431(1987) |
| [13] | J.L.Cain,D.E.Nikles,IEEE Transaction on Magnetics,33,3718(1997) |
| [14] | J.L.Cain,S.R.Harrison,J.A.Nikles,D.E.Nikles,Journal of Magnetism and Magnetic Materials,155,67(1996) |
| [15] | G.N.Glavee,K.J.Klabunde,C.M.Sorensen,G.C.Hadjipanayis,Inorganic Chemistry,34,28(1995) |
| [16] | I.Dragieva,Journal of Magnetism and Magnetic Materials,140～144,455(1995) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%