Optical imaging and magnetocaloric effect measurements in pulsed high magnetic fields and their application to Ni-Co-Mn-In Heusler alloy
Optical imaging and magnetocaloric effect measurements in pulsed high magnetic fields and their application to Ni-Co-Mn-In Heusler alloy
复制标题
脉冲强磁场中的光学成像和磁热效应测量及其在 Ni-Co-Mn-In Heusler 合金中的应用
DOI：
10.1016/j.jallcom.2012.02.018
复制
发表时间：
2011
影响因子：
6.2
通讯作者：
T.Kihara
中科院分区：
文献类型：
--
作者：
W.Ito;et al;T.Kihara
作为研究磁性形状记忆合金的新工具，研制了高速光学显微镜系统和脉冲磁场下磁热效应测量系统。使用高速成像系统，连续变化的表面形貌可视化的过程中，磁场诱导的逆马氏体相变在Ni45Co5Mn36. 7In13. 3。Gd的MCE研究在脉冲场显示合理的协议与早期的结果在稳定的领域。应用高达55 T的强磁场实现了63 K的巨大绝热加热。
As novel tools to study magnetic shape memory alloys, a high-speed optical microscope system and a measurement system of magnetocaloric effects (MCEs) in pulsed magnetic fields are developed. Using the high-speed imaging system, successive changes in the surface morphology are visualized in the process of magnetic field-induced reverse martensitic transformation in Ni45Co5Mn36.7In13.3. The MCEs of Gd studied in pulsed fields show reasonable agreement with the earlier results obtained in steady fields. Application of high magnetic fields up to 55 T realizes a gigantic adiabatic heating of 63 K.