Additive manufacturing of lithium aluminosilicate glass-ceramic/metal 3D electronic components via multiple material laser powder bed fusion
Journal
Additive Manufacturing
Journal Volume
49
Start Page
102481
ISSN
22148604
Date Issued
2022-01
Author(s)
Cheng, Dongxu
Wei, Chao
Huang, Yihe
Zhang, Zhizhou
Wang, Dong
Liu, Zekun
Newman, Mathew
Ma, Tianlei
Zhang, Xiaoji
Liu, Zhu
Li, Lin
Abstract
Multiple material additive manufacturing technology with the capability to integrate glass-ceramic and metallic materials is essential to the development of high-performance functional components for high temperature applications. Here we show the feasibility and characteristics of additively manufactured glass-ceramic/metal 3D electronic components via single-process multiple material laser powder bed fusion (MMLPBF). Copper (II) oxide (CuO) powder is mixed with α-spodumene (lithium aluminosilicate, Li₂O·Al₂O₃·4SiO₂) glass-ceramic powder to improve the laser absorbance, reduce the melting point of glass-ceramic to match that of copper and to improve bonding between copper and the glass-ceramic. Up to 92% relative density of the glass-ceramic is realized. The monoclinic crystal α-spodumene has been transformed to tetragonal crystal β-spodumene after laser melting. Sodium chloride (NaCl) and graphite mixed powder is printed as the substrate for the glass-ceramic component for its rapid removal. Embedded conductive copper wires and plates as the main conductive structures are successfully built within the glass-ceramic from powder feedstocks. The electrical resistivity of the printed copper structures is examined. An embedded multiple layer electric circuit, a capacitor and a temperature sensor are successfully printed and tested.
Subjects
Additive manufacturing
Capacitor
Circuit
Glass-ceramic
High temperature
Laser powder bed fusion
Multiple material
Temperature sensor
Publisher
Elsevier B.V.
Type
journal article