Fabrication of copper-titanium composite layers on alumina using laser-based powder bed fusion

Hecht C, Heidkamper J, Sprenger M, Frank A, Franke J, Risch F (2025)

Publication Type: Conference contribution

Publication year: 2025

Publisher: Institute of Electrical and Electronics Engineers Inc.

Conference Proceedings Title: 2025 16th International MID Congress Mechatronic Integration Discourse, MID Congress 2025

Event location: Amberg

ISBN: 9798331566722

DOI: 10.1109/MIDCongress66428.2025.11547389

Abstract

Laser-based powder bed fusion has emerged as a key technology in additive manufacturing in recent years. This study investigates the application of laser-based powder bed fusion for the metallization of alumina substrates using pre-alloyed copper-titanium powder. To achieve a strong bond between ceramics and copper-based alloys, active elements such as titanium are commonly used. However, since copper-titanium alloys exhibit relatively low thermal and electrical conductivity, additional copper layers are applied to ensure efficient metallization for electronic applications. The primary objective is to develop an alternative metallization method for ceramics that could replace or complement conventional techniques such as Direct Copper Bonding or Active Metal Brazing. This additive metallization approach provides the opportunity for mechatronic integrated metallizations for electronics in harsh and high-power application. The research analyzes the specific challenges and opportunities in processing copper and copper-titanium alloys on ceramic substrates using laser-based powder bed fusion. Two laser systems, operating in the green and infrared spectral range, are used to examine material- and wavelength-specific properties.

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How to cite

APA:

Hecht, C., Heidkamper, J., Sprenger, M., Frank, A., Franke, J., & Risch, F. (2025). Fabrication of copper-titanium composite layers on alumina using laser-based powder bed fusion. In 2025 16th International MID Congress Mechatronic Integration Discourse, MID Congress 2025. Amberg, DE: Institute of Electrical and Electronics Engineers Inc..

MLA:

Hecht, Christoph, et al. "Fabrication of copper-titanium composite layers on alumina using laser-based powder bed fusion." Proceedings of the 16th International MID Congress Mechatronic Integration Discourse, MID Congress 2025, Amberg Institute of Electrical and Electronics Engineers Inc., 2025.

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