Abstract
Tb 0.3 Dy 0.7 Fe 1.95 was prepared in cylindrical rod forms by modified Bridgman technique. To maintain a constant thermal gradient to solidification rate ratio throughout the sample length, the solidification rate was decreased from 70 cm h −1 to 30 cm h −1 in three stages. The sample close to the chill plate showed a large magnetostriction and 〈1 1 0〉 texture. After changing the solidification rate the sample exhibited low magnetostriction and random texture. Thus intermittent changes of solidification rate lead to thermal instability of the growth front, affecting texture.
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