Interface control and preparation technology of ultrahigh thermal conductivity APG/Cu composites

Yulin Liu; Zhongnan Xie; Hong Guo; Ximin Zhang; Mingmei Sun; Shuhui Huang; Haofeng Xie

doi:10.1117/12.3015402

6 February 2024 Interface control and preparation technology of ultrahigh thermal conductivity APG/Cu composites

Yulin Liu, Zhongnan Xie, Hong Guo, Ximin Zhang, Mingmei Sun, Shuhui Huang, Haofeng Xie

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 1297902 (2024) https://doi.org/10.1117/12.3015402
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

With the increase in electronic devices’ power density, the thermal runaway caused by thermal aggregation seriously affects the reliability and life of electronic devices. To diffuse the point heat source into the area heat source to reduce the heat aggregation phenomenon, a novel copper encapsulated Annealed Pyrolytic Graphite (APG) was prepared by Vacuum Hot Pressing (VHP). The influence of preparation and plating parameters on the microstructure and thermal conductivity of APG/Cu were studied. As a result, the uniform and compact Ti coating with 0.7 μm thickness was obtained by vacuum evaporation at 800 °C for 1.5 h. High thermal conductivity was obtained by the sintering process with graphite content of 50 vol.% at 870 °C/50 MPa. An ultrahigh in-plane thermal conductivity of 1243.19 W/mK for APG/Cu composites with 50 vol.% graphite content was obtained at 870 °C/50 MPa. Currently, the density of the composite exceeds 98%. Ultrahigh thermal conductivity makes APG/Cu composites a candidate material for thermal management.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yulin Liu, Zhongnan Xie, Hong Guo, Ximin Zhang, Mingmei Sun, Shuhui Huang, and Haofeng Xie "Interface control and preparation technology of ultrahigh thermal conductivity APG/Cu composites", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 1297902 (6 February 2024); https://doi.org/10.1117/12.3015402

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available