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6CCVD Research

Effect of Laser on the Interface and Thermal Conductivity of Metallized Diamond/Cu Composite Coatings Deposited by Supersonic Laser Deposition

At a Glance

Section titled “At a Glance”
MetadataDetails
Publication Date2024-10-24
JournalMaterials
AuthorsYiyun Chen, Qunli Zhang, Bo Li, Zhijun Chen, Shaowu Liu
InstitutionsKielce University of Technology, Zhejiang University of Technology
Citations3

Abstract

Section titled “Abstract”

To achieve the rapid heat dissipation of components in the industrial field, the heat dissipation coating is prepared on the surface, which is conducive to improving the service life of the parts and greatly reducing the industrial costs. In this paper, metallized diamond/Cu composite coatings were fabricated on 1060Al substrate by supersonic laser deposition. The composite coatings were prepared at a nitrogen pressure of 3.0 MPa, a scanning speed of 10 mm/s, and a 1060 nm semiconductor coupled fiber laser with different laser power. The research results show that the laser power affects the interface bonding by affecting the temperature of adiabatic shear instability during particle impact. The metallized diamond forms a good bonding at the interface through the plastic deformation of the Cu matrix. Appropriate parameters ensure that the jet does not affect the subsequent particle deposition and build a good heat transfer bridge to elevate the heat transfer efficiency. The coating prepared at a laser power of 1000 W has the highest thermal diffusion coefficient of 89.3 mm2/s and thermal conductivity of 313.72 W/(m·K), which is 8.92% higher compared to the coating prepared without laser. Experiments with thermal imaging have also demonstrated that the coating at optimal parameter transferred heat faster. Our research provides a technical guidance for rapid preparation of high-quality heat dissipation coatings in industry.

Tech Support

Section titled “Tech Support”

Original Source

Section titled “Original Source”

References

Section titled “References”
  1. 2024 - Effects of OCF content and oxidation treatment on thermal conductivity and corrosion resistance of CF/BN/EPN coating [Crossref]
  2. 2023 - Fabrication of ZnO@FeO superhydrophobic coatings with high thermal conductivity [Crossref]
  3. 2024 - Enhancing thermal conductivity of 6061 Al plate via graphene dip coating [Crossref]
  4. 2024 - Ultrahigh strength, thermal stability and high thermal conductivity in hierarchical nanostructured Cu-W alloy [Crossref]
  5. 2019 - Influence of interface thermal resistance on thermal conductivity of SiC/Al composites [Crossref]
  6. 2024 - Electrical properties, microstructure, and thermal conductivity of hot-pressed CaO-doped AlN ceramics [Crossref]
  7. 2019 - Interfacial structure evolution and thermal conductivity of Cu-Zr/diamond composites prepared by gas pressure infiltration [Crossref]
  8. 2023 - Fabrication of high thermal conductivity tungsten-coated diamond/tungsten composites by a rapid sintering method [Crossref]
  9. 2023 - Interface formation evolution of the hot-forged copper-(Cr)diamond composite and its thermal conductivity [Crossref]

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