TY - JOUR
T1 - Titanate coupling agent surface modification effect on the magnetic properties of iron-based alloy powder coil prepared using screen printing
AU - Hsiang, Hsing I.
AU - Chuang, Kai Hsin
AU - Lee, Wen Hsi
N1 - Funding Information:
This work was supported by the Ministry of Science and Technology, Taiwan [106-2923-E-006 -009 -MY3 and 109-3111-8-006 -001].
Publisher Copyright:
© 2021, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2021/1
Y1 - 2021/1
N2 - A molded-type coil is prepared by filling and dry pressing granulated alloy magnetic powders directly onto enameled wire. As the molded-type coil is developed toward miniaturization, the granules consisting of magnetic powder and organic binder cannot uniformly fill the small space in the coil center column during molding. This leads to a porous microstructure or cracks. In this study, magnetic alloy powder coils were prepared using a screen-printing process using high-solid-content magnetic pastes. The magnetic powder was surface-modified with titanate coupling agent to improve the magnetic powder and epoxy resin compatibility, thereby improving magnetic powder mixing with epoxy resin and reducing the high solid content magnetic paste viscosity. The experimental results showed that the relative density and magnetic properties (such initial permeability, core loss, and coercivity) can be significantly enhanced using titanate coupling agent surface modification.
AB - A molded-type coil is prepared by filling and dry pressing granulated alloy magnetic powders directly onto enameled wire. As the molded-type coil is developed toward miniaturization, the granules consisting of magnetic powder and organic binder cannot uniformly fill the small space in the coil center column during molding. This leads to a porous microstructure or cracks. In this study, magnetic alloy powder coils were prepared using a screen-printing process using high-solid-content magnetic pastes. The magnetic powder was surface-modified with titanate coupling agent to improve the magnetic powder and epoxy resin compatibility, thereby improving magnetic powder mixing with epoxy resin and reducing the high solid content magnetic paste viscosity. The experimental results showed that the relative density and magnetic properties (such initial permeability, core loss, and coercivity) can be significantly enhanced using titanate coupling agent surface modification.
UR - http://www.scopus.com/inward/record.url?scp=85098528574&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85098528574&partnerID=8YFLogxK
U2 - 10.1007/s10854-020-04948-6
DO - 10.1007/s10854-020-04948-6
M3 - Article
AN - SCOPUS:85098528574
VL - 32
SP - 1800
EP - 1807
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
SN - 0957-4522
IS - 2
ER -