| 摘要 |
<p>Cobalt-iron optionally including rare earth element(s) supermagnetostrictive alloys of composition represented by general formula (I) R (Co1-xFex)z, wherein 0.001 </= x </= 0.8, 0.2 </= z </= 15, and R is at least one element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu and is consisting essentially of a cubic system whose easy axis of magnetization is generally <100> or <110> oriented; or R is at least one element selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Sm, Gd, Dy, Er, Yb, and Lu. Such an alloy exhibits satisfactory magnetostriction in a wide range of temperatures from room temperature to liquid nitrogen temperature and may find applications in fine displacement control drive means in e.g. precision instruments and machinery.</p> |
