Process and Mechanism of Surface Brazing of Graphene on Aluminum Nitride
In order to enhance the heat dissipation of a chip, this work investigates the enhancement of the thermal homogenization effect of a ceramic substrate with a high-thermal-conductivity graphene material to improve the interfacial heat transfer performance. AgCuTi-activated brazing material is used to connect the graphene film/AlN. The mechanism of the influence of brazing temperatures on the microstructure and thermal conductivity of joints is discussed. The thermal conductivity of the graphene/AlN double layer composite brazed at 890 °C for 10 min holding time was the highest at 482.3 W m−1 K−1. This study provides a new solution for the application of AlN ceramics in high-heat-flow scenarios.
Authors
- Jingxiang Lv (ORCID: https://orcid.org/0000-0002-6589-0855)
- Xinyun Wu (ORCID: https://orcid.org/0000-0003-4131-0577)
- Zijia Wang (ORCID: https://orcid.org/0000-0002-5726-5451)
- Deren Kong (ORCID: https://orcid.org/0000-0003-2564-7022)
- Yan Yin (ORCID: https://orcid.org/0000-0001-6544-4778)
- Wenbo Li (ORCID: https://orcid.org/0009-0005-0204-751X)
- Chundong Xu
Institutions
- Harbin Institute of Technology (CN)
- Nanjing University of Science and Technology (CN)
Publication Details
- Journal
- Coatings
- Published
- 2025-09-01
- DOI
- https://doi.org/10.3390/coatings15091011
- Citations
- 1
- Primary Topic
- Graphene research and applications
- Type
- article
- Field-Weighted Citation Impact
- 0.52