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Diamond-nanowire composite and its preparation method

A technology of nanowires and composites, which is applied in the field of diamond-nanowire composites and its preparation, and can solve problems such as high production costs and hindering the application of diamonds

Active Publication Date: 2016-01-13
宁波晶钻科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, single diamond is not easy to make packaging materials, and the production cost is quite high, which seriously hinders the application of diamond

Method used

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  • Diamond-nanowire composite and its preparation method
  • Diamond-nanowire composite and its preparation method
  • Diamond-nanowire composite and its preparation method

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preparation example Construction

[0083] In the preparation method of the present invention, the heating reaction is usually carried out at 800-1250°C (preferably 900-1200°C), and the reaction time is usually 1-60 minutes (preferably 10-40 minutes).

[0084] One, the invention provides a kind of preparation method of diamond-boron nanowire composite body, preferably comprises the steps:

[0085] (1) providing a mixture comprising diamond particles, boron raw material and metal catalyst;

[0086] Preferably, based on the total weight of the mixture in step (1), the mass fraction of the boron raw material is 1-15 wt%, preferably 5-10 wt%.

[0087] Preferably, based on the total weight of the mixture in step (1), the mass fraction of the metal catalyst is 10-90wt%; preferably 20-85wt%; more preferably 30-75wt%.

[0088] (2) Under vacuum or in an inert atmosphere of hydrogen, argon, or a combination thereof or in a reducing atmosphere (such as an atmosphere with a pressure of 1Pa-120kPa), the mixture in step (1) ...

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Abstract

The invention relates to a diamond-nanowire complex and a preparation method thereof. Specifically, the diamond-nanowire complex provided by the invention includes diamond particles and nanowires bonded to the surfaces of the diamond particles, wherein the nanowires include boron nanowires, boride nanowires, or their combination. The complex material has excellent performance and wide application.

Description

technical field [0001] The invention belongs to the field of diamond composite materials. Specifically, the present invention relates to a diamond-nanowire composite and a preparation method thereof. Background technique [0002] At present, diamond is the substance with the highest thermal conductivity in nature. The thermal conductivity of high-quality single crystal diamond can reach 2000W / (m·K). It also has the characteristics of low dielectric constant and low thermal expansion coefficient, making diamond composite materials Become the first choice for a new generation of packaging materials. However, a single diamond is not easy to be made into an encapsulation material, and the production cost is quite high, which seriously hinders the application of diamond. However, how to preserve the excellent properties of diamond while expanding the application range of diamond and reducing the production cost of diamond materials is still a major difficulty in this field. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/06C01B35/04C01B31/36C01B21/064C01B35/10C01B35/14B82Y30/00C01B32/28C01B32/991
Inventor 江南张文武白华戴丹
Owner 宁波晶钻科技股份有限公司