Differential effect of magnetic alignment on additive manufacturing of magnetocaloric particles

Al-Milaji, Karam; Gupta, Shalabh; Pecharsky, Vitalij; Hadimani, Ravi; Barua, Radhika; Zhao, Hong; Hadimani, Ravi

Differential effect of magnetic alignment on additive manufacturing of magnetocaloric particles

File

IS_J_10149.pdf (2.92 MB)

Date

2020-01-27

Authors

Al-Milaji, Karam

Gupta, Shalabh

Pecharsky, Vitalij

Hadimani, Ravi

Barua, Radhika

Zhao, Hong

Hadimani, Ravi

Authors

Person

Hadimani, Ravi

Affiliate Assistant Professor

Organizational Units

Organizational Unit

Ames National Laboratory

Ames National Laboratory is a government-owned, contractor-operated national laboratory of the U.S. Department of Energy (DOE), operated by and located on the campus of Iowa State University in Ames, Iowa.

For more than 70 years, the Ames National Laboratory has successfully partnered with Iowa State University, and is unique among the 17 DOE laboratories in that it is physically located on the campus of a major research university. Many of the scientists and administrators at the Laboratory also hold faculty positions at the University and the Laboratory has access to both undergraduate and graduate student talent.

Organizational Unit

Materials Science and Engineering

Materials engineers create new materials and improve existing materials. Everything is limited by the materials that are used to produce it. Materials engineers understand the relationship between the properties of a material and its internal structure — from the macro level down to the atomic level. The better the materials, the better the end result — it’s as simple as that.

Department

Ames National LaboratoryMaterials Science and Engineering

Abstract

Additive manufacturing of materials using magnetic particles as feedstock has attracted tremendous attention during the past decade owing to its ability to tune both shape and magnetocrystalline anisotropy, which can significantly enhance the magnetic characteristics of materials. We demonstrate that the magnetic response of multilayered thin films of Gd5Si4 can be tailored by controlling the external magnetic field during inkjet printing. The external magnetic field aligns the magnetic particles along their magnetic easy axis, enhancing the magnetic anisotropy of the printed films. Our work demonstrates the ability to print thin magnetic films with a defined anisotropy in any chosen direction with the potential to approaching magnetic properties of corresponding single crystalline materials.