提出了合金凝固过程中晶粒磁取向的动力学模型,获得了晶粒取向时间的分析解,确定了取向时间与介质粘度、晶粒长径比、晶粒各向异性磁化率差以及磁场强度的理论关系.应用这个关系对顺磁性超导材料Bi-2212和磁性材料Bi-3%Mn的取向时间进行了预测.将Bi-3%Mn合金在300℃下熔化,并在不同的磁场下淬火,获得了有取向的MnBi织构,晶粒的取向时间小于1 s,与理论预测一致.
参考文献
| [1] | Farrel D E, Chandrasekhar B S, DeGuire M R, Fang M M, Kogan V G, Clem J R, Finnemore D K. Phys Rev B,1987; 36(7): 4025 |
| [2] | Cloots R, Vandewalle N, Ausloos M. Appl Phys Lett, 1994;65:3386 |
| [3] | Ma Y, Wang Z. Physica C, 1997; 282-287:2619 |
| [4] | Ferreira P J, Liu H B, Vander Sande J B. J Mater Res,1999; 14(7): 2751 |
| [5] | Morikawa H, Sassa K, Asai S. Mater Trans JIM, 1998;39(8): 814 |
| [6] | Yasuda H, Ohnaka I, Shimamura K. In: Asai S ed, The 3rd Int Symp on EPM. Nagoya, Japan, ISIJ, 2000:647 |
| [7] | Wang H, Ren Z M, Deng K, Xu K D. Acta Metall Sin,2002; 38:41(王晖,任忠鸣,邓康,徐匡迪.金属学报,2002;38:41) |
| [8] | Wang H, Ren Z M, Deng K, Xu K D. Trans Chin Nonferrous Met Soc, 2002; 12(3): 556(王晖,任忠鸣,邓康等,徐匡迪.中国有色金属学报,2002;12(3):556) |
| [9] | Wan D F, Ma X L. Physics of Magnetism. Beijing: Electric Industry Press, 1999:436(宛德福,马兴隆.磁性物理学.北京:电子工业出版社,1999:436) |
| [10] | Probstein R F. Physicochemical Hydrodynamics: An Introduction, Butterworths, Boston, 1989:85 |
| [11] | Barrett S E, Durand D J, Pennington C H. Phys Rev B,1990; 41:6283 |
| [12] | Vaknin D, Sinha S K, Stassis C, Miller L L, Johnson D C.Phys Rev B, 1990; 41:1926 |
| [13] | Shetty M N, Rawat D K, Rai K N. J Mater Sci, 1987; 22:1908 |
| [14] | O' Handly R C. Modern Magnetic Materials: Principles and Application. New York: John Wiley and Sons, 2000:45 |
| [15] | Moffatt W G. The Handbook of Binary Phase Diagrams.New York: Genium, 1984 |
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%