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Formulation of a Ceramic Ink for 3D Inkjet Printing

Graf, Dennis; Jung, Judith 1; Hanemann, Thomas 1
1 Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Due to its multi‐material capabilities, 3D inkjet printing allows for the fabrication of com‐ponents with functional elements which may significantly reduce the production steps. The poten‐tial to print electronics requires jettable polymer‐ceramic composites for thermal management. In this study, a respective material was formulated by functionalizing submicron alumina particles by 3‐(trimethoxysilyl)propylmethacrylate  (MPS)  and  suspending  them  in  a  mixture  of  the  oli‐gourethane Genomer 4247 with two acrylate functionalities and a volatile solvent. Ink jetting tests were performed, as well as thermal conductance and mechanical property measurements. The ma‐terial met the strict requirements of the printing technology, showing viscosities of around 16 mPa∙s as a liquid. After solidification, it exhibited a ceramic content of 50 vol%, with a thermal conductance of 1 W/(m∙K). The resulting values reflect the physical possibilities within the frame of the allowed tolerances set by the production method.

Verlagsausgabe §
DOI: 10.5445/IR/1000137720
Veröffentlicht am 22.09.2021
DOI: 10.3390/mi12091136
Zitationen: 3
Web of Science
Zitationen: 1
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Werkstoffkunde (IAM-WK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2072-666X
KITopen-ID: 1000137720
HGF-Programm 43.34.01 (POF IV, LK 01) Lightweight Materials for Structural and Medical Application
Erschienen in Micromachines
Verlag MDPI
Band 12
Heft 9
Seiten 1136
Bemerkung zur Veröffentlichung This article belongs to the Special Issue Recent Advance in Inkjet Technology.
Vorab online veröffentlicht am 21.09.2021
Schlagwörter dditive manufacturing; material jetting; polymer‐ceramic composites; ceramic inks
Nachgewiesen in Web of Science
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