Inkjet printing of magnetic materials with aligned anisotropy

Autor:	Pallavi Dhagat, Jeremy Spencer, Vladek P. Kasperchik, Albrecht Jander, Han Song, Nielsen Jeffrey A, James Stasiak
Rok vydání:	2014
Předmět:	Magnetic anisotropy Materials science Magnetic structure Permeability (electromagnetism) General Physics and Astronomy Magnetic nanoparticles Nanotechnology Magnetic hysteresis Inductor Lithography Computer Science::Other Magnetic field
Zdroj:	Journal of Applied Physics. 115:17E308
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.4863168
Popis:	3-D printing processes, which use drop-on-demand inkjet printheads, have great potential in designing and prototyping magnetic materials. Unlike conventional deposition and lithography, magnetic particles in the printing ink can be aligned by an external magnetic field to achieve both high permeability and low hysteresis losses, enabling prototyping and development of novel magnetic composite materials and components, e.g., for inductor and antennae applications. In this work, we report an inkjet printing technique with magnetic alignment capability. Magnetic films with and without particle alignment are printed, and their magnetic properties are compared. In the alignment-induced hard axis direction, an increase in high frequency permeability and a decrease in hysteresis losses are observed. Our results suggest that unique magnetic structures with arbitrary controllable anisotropy, not feasible otherwise, may be fabricated via inkjet printing.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4e29041174c7accfe18d96315f32e92b https://doi.org/10.1063/1.4863168 Zobrazit plný text záznamu