Next Article in Journal
Correction: Ungson, Y. et al. Filling of Irregular Channels with Round Cross-Section: Modeling Aspects to Study the Properties of Porous Materials. Materials 2018, 11, 1901
Previous Article in Journal
Partial Discharge in Nanofluid Insulation Material with Conductive and Semiconductive Nanoparticles
Previous Article in Special Issue
Fully Ion Implanted Normally-Off GaN DMOSFETs with ALD-Al2O3 Gate Dielectrics
Article Menu
Issue 5 (March-1) cover image

Export Article

Open AccessArticle
Materials 2019, 12(5), 817; https://doi.org/10.3390/ma12050817

Tailoring a Silver Paste for Additive Manufacturing of Co-Fired Ferrite Magnetic Components

1
The Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, USA
2
School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
3
The Bradley Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, VA 24061, USA
*
Author to whom correspondence should be addressed.
Received: 12 January 2019 / Revised: 27 February 2019 / Accepted: 5 March 2019 / Published: 11 March 2019
(This article belongs to the Special Issue Advanced Materials for Power Electronics)
Full-Text   |   PDF [1841 KB, uploaded 11 March 2019]   |  

Abstract

Additive manufacturing (AM), or 3D-printing, has the potential for rapid prototyping of innovative designs of magnetic components used in power electronics converters. In this study, we tailored a silver paste as the metal feedstock of an extrusion 3D printer so that the metal would be compatible with a ferrite paste feedstock for 3D-printing of ferrite magnetic components. We focused on adjusting the metal formulation to match its shrinkage to that of the ferrite and to improve adhesion during the co-sintering process of the printed part. We found that a 5 wt % addition of ferrite powder in the metal paste can achieve matched shrinkage and strong adhesion. Evaluation of the co-sintered magnetic components showed no significant defects, such as cracks, warpage, or delamination, between the metal and ferrite. The shear strength between the two sintered materials was greater than 50 MPa, and the electrical resistivity of the sintered metal winding was less than twice that of the bulk silver, which is lower than those of most 3D-printed winding metals reported in the literature. View Full-Text
Keywords: additive manufacturing; co-fire; shrinkage mismatch; ferrite magnetic components additive manufacturing; co-fire; shrinkage mismatch; ferrite magnetic components
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Liu, L.; Ding, C.; Mei, Y.; Lu, G. Tailoring a Silver Paste for Additive Manufacturing of Co-Fired Ferrite Magnetic Components. Materials 2019, 12, 817.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top