High-volume diamond reinforced metal-based composite material and preparation method and application thereof

Abstract

The invention discloses a high-volume diamond reinforced metal-based composite material and a preparation method and application thereof. The high-volume diamond reinforced metal-based composite material comprises a gradient boron-doped diamond reinforced metal-based composite material and a diamond layer strengthening phase, wherein the diamond layer strengthening phase coats the surface of the gradient boron-doped diamond reinforced metal-based composite material; the gradient boron-doped diamond reinforced metal-based composite material comprises a gradient boron-doped diamond reinforcementbody and a metal matrix; and the gradient boron-doped diamond reinforcement body comprises an undoped diamond reinforcement body and a gradient boron-doped diamond modified layer arranged on the surface of the diamond reinforcement body. According to the material, the preparation method and application thereof, the thermal conductivity is greatly improved by increasing the volume of diamond in the composite material, and meanwhile, due to the fact that a pure diamond layer is uniform in hardness, the pure diamond layer is easier to machine, and is more conveniently applied to various fields.

Description

technical field [0001] The invention relates to a preparation method and application of a high-volume diamond-reinforced metal matrix composite material, and belongs to the technical field of thermal management composite material preparation. Background technique [0002] With the continuous development of information technology, the 5G network is affecting social life more and more deeply. While realizing intelligence, electronic products are gradually developing towards thinner, high-performance and multi-functional directions, which greatly increases the integration of electronic products. And assembly density, the increasing integration and assembly density of electronic products lead to a sharp increase in power consumption and heat generation, and heat dissipation will become an urgent problem for electronic equipment. In addition, the digital and intelligent development in the fields of national defense and military industry (such as radar systems, infrared detectors,...

AI Technical Summary

Problems solved by technology

[0007]The object of the present invention is to overcome the defect that the diamond content in the diamond-reinforced composite material deposited by the existing chemical vapor deposition technology is too low, and to provide a high-volume diamond-reinforced Metal matrix composite materials and their preparation methods and applications; a high thermal conductivity diamond reinforcement is constructed by chemical vapor deposition technology, compounded with a metal matrix to prepare a composite material, and then a pure diamond layer is deposited on the surface of the composite material by chemical vapor deposition to improve the composite material. The volume of diamond in the material can greatly improve the thermal conductivity. At the same time, due to the uniform hardness of the pure diamond layer, it is easier to process and more convenient to apply in various fields.