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原位生长石墨烯增强铜基材料的制备及其热性能研究.
- Source :
-
Journal of Functional Materials / Gongneng Cailiao . Jun2022, Vol. 53 Issue 6, p06095-06099. 5p. - Publication Year :
- 2022
-
Abstract
- In this paper, graphene from inexpensive sucrose is prepared by in-situ growth directly on the Cu flakes, and Cu matrix materials(Cu-MMs) with various in-situ graphene content is fabricated by hot-press sintering. The effect of sucrose content on the phase composition, microstructure and thermal properties of bulk Cu-MMs is studied by XRD, SEM, thermal conductivity (TC) and coefficient of thermal expansion (CTE). Results obtained indicate that after the heat treatment at 800 ℃ for 15 min under the H2/Ar gas flow, the in-situ growth of graphene on the surface of Cu flakes occurs. The graphene exhibits good attachment to Cu matrix and homogenous dispersion, which is beneficial for thermal properties of Cu-MMs. With 0.73 vol% grapheme, the TC of Cu-MMs reaches 339 W/(m·K), which is higher by 19.3% than that of Cu, and meanwhile CTE is far lower than that of Cu from 50 ℃ to 300 ℃. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Chinese
- ISSN :
- 10019731
- Volume :
- 53
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Functional Materials / Gongneng Cailiao
- Publication Type :
- Academic Journal
- Accession number :
- 158274302
- Full Text :
- https://doi.org/10.3969/ji.ssn.1001-9731.2022.06.013