采用悬浮区熔法,加入籽晶控制生长取向,以4 mm/h的生长速度,制备了轴向〈001〉择优取向的Fe81Ga19单晶.极图测试结果发现,采用偏离轴向〈001〉方向约5°的籽晶生长得到的单晶,生长始端和生长末端轴向取向分别偏离〈001〉取向5°和4°,上下取向差仅为1°.另一单晶采用轴向〈001〉取向籽晶生长得到,当施加60 MPa压力时,饱和磁致伸缩性能达到0.0324%.测试了〈100〉,〈110〉和〈111〉取向单晶的初始磁化曲线,利用初始磁化曲线,计算得出Fe81Ga19单晶的磁晶各向异性常数值K1和K2,分别为1.3×104和-2.6×104 J/m3.
参考文献
[1] | Clark A E,Hathaway K B,Wun-Foglea M,Restorff J B,Lograsso T A,Keppens V M,Petculescu G,Taylor R A.J Appl Phys,2003; 93:8621 |
[2] | Datta S,Atulasimha J,Mudivarthi C,Flatau A B.J Magn Magn Mater,2010; 322:2135 |
[3] | Kellogg R A,Russell A M,Lograsso T A,Flatau A B,Clark A E,Wun-Fogle M.Acta Mater,2004; 52:5043 |
[4] | Kellogg R A,Flatau A B,Clark A E,Wun-Fogle M,Lograsso T A.J Appl Phys,2002; 91:7821 |
[5] | Clark A E,Restorff J B,Wun-Fogle M,Lograsso T A,Schlagel D L.IEEE Trans Magn,2000; 36:3238 |
[6] | Cullen J,Zhao P,Wuttiga M.J Appl Phys,2007; 101:123922 |
[7] | Ruffoni M P,Pascarelli S,Grossinger R,Sato Turtelli R,Bormio-Nunes C,Pettifer R F.Phys Rev Lett,2008; 101:147202 |
[8] | Mudivarthi C,Laver M,Cullen J,Flatau A B,Wuttig M.J Appl Phys,2010; 107:09A957 |
[9] | Khachaturyan A G,Viehland D.Metall Mater Trans,2007; 38A:2308 |
[10] | Khachaturyan A G,Viehland D.Metall Mater Trans,2007; 38A:2317 |
[11] | Bhattacharyya S,Jinschek J R,Khachaturyan A,Cao H,Li J F,Viehland D.Phys Rev,2008; 77B:104107 |
[12] | Summers E M,Lograsso T A,Wun-Fogle M.J Mater Sci,2007; 42:9582 |
[13] | Atulasimha J,Flatau A B.J Intell Mater Syst Struct,2008; 19:1371 |
[14] | Clark A E,Yoo J H,Cullen J R,Wun-Fogle M,Petculescu G,Flatau A.J Appl Phys,2009; 105:07A913 |
[15] | Wun-Foglea M,Restorff J B,Clark A E,Dreyer E,Summers E.J Appl Phys,2005; 97:10M301 |
[16] | Clark A E,Teter J P,McMasters O D.J Appl Phys,1988; 63:3910 |
[17] | Rafique S,Cullen J R,Wuttig M,Cui J.J Appl Phys,2004; 95:6939 |
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%