Abstract
Abstract Growing the Heusler Ni–Mn–Sn unidirectional crystals is challenging. In the present work, a modified zone-melting method has been developed on the basis of traditional optical floating zone furnace, and high-quality Ni 47 Mn 38 Sn 15 unidirectional crystal has been produced in 0.8 MPa high-pressure atmosphere. Experimental results showed that the unidirectional crystal was β {110} preferentially oriented and chemical compositions distributed almost homogenously. The modified high-pressure optical zone-melting technique opens interesting perspectives for fabrication of unidirectional materials containing high-manganese.
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