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電爆法制備石墨烯氣溶膠用于石墨烯包覆鋁復(fù)合粉體
作者:
作者單位:

1.蘭州理工大學(xué) 材料科學(xué)與工程學(xué)院，甘肅 蘭州 730050;2.蘭州理工大學(xué) 電氣工程與信息工程學(xué)院，甘肅 蘭州 730050

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基金項(xiàng)目:

NSFC(62173170)


Preparation of Graphene-Coated Aluminum Composite Powder by Dispersing Graphene Aerosol Through Electrical Explosion
Author:
Affiliation:

1.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China;2.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China

Fund Project:

National Natural Science Foundation of China (62173170)

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    摘要:

    提出了一種通過電爆法制備石墨烯氣溶膠并將其用于石墨烯包覆鋁復(fù)合粉體的新方法，在不破壞石墨烯本征特性的前提下，解決了石墨烯在金屬復(fù)合粉體中分散不均勻、界面結(jié)合弱的問題。利用電爆法制備了一定濃度的石墨烯氣溶膠，得到的石墨烯有2種結(jié)構(gòu)：片狀和凝膠狀。石墨烯層數(shù)為5~8層，石墨烯氣溶膠均勻分散在腔內(nèi)。另外，在氣流的作用下，通過攪拌將石墨烯氣溶膠與球形鋁粉顆粒混合，制備了石墨烯含量不同的石墨烯包覆鋁復(fù)合粉體。當(dāng)石墨烯氣溶膠含量為1.5%（質(zhì)量分?jǐn)?shù)）時(shí)，石墨烯均勻分散在復(fù)合材料中，石墨烯片粘附包裹在金屬顆粒上。最后，分析了石墨烯氣溶膠原位混合形成石墨烯金屬復(fù)合粉體的機(jī)理。

    Abstract:

    A new method to produce graphene-coated aluminum composite powder by graphene aerosol prepared by electrical explosion was proposed. This method solves the problems of uneven dispersion and weak interfacial bonding of graphene in the metal composite powder without damaging the intrinsic properties of graphene. The graphene aerosol of specific content was prepared by the electrical explosion, and the obtained graphene had two structures, namely the flake graphene and the gel graphene. The graphene had 5?8 layers, and the graphene aerosol was uniformly dispersed in the chamber. Then, the graphene aerosols were mixed with spherical aluminum particles by stirring under the air flow, and the graphene-coated aluminum composite powders with different graphene contents were prepared. When the content of graphene aerosol is 1.5wt%, the graphene is uniformly dispersed in the aluminum composite powder and the graphene sheets adhere to the metal particles. Finally, the mechanism of in-situ formation of graphene-coated metal composite powder by dispersing of graphene aerosols was analyzed.

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引用本文

王旭東,周輝,孫鵬,張愛華,朱亮.電爆法制備石墨烯氣溶膠用于石墨烯包覆鋁復(fù)合粉體[J].稀有金屬材料與工程,2023,52(1):81~86.[Wang Xudong, Zhou Hui, Sun Peng, Zhang Aihua, Zhu Liang. Preparation of Graphene-Coated Aluminum Composite Powder by Dispersing Graphene Aerosol Through Electrical Explosion[J]. Rare Metal Materials and Engineering,2023,52(1):81~86.]
DOI：10.12442/j. issn.1002-185X.20220357

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  • 收稿日期:2022-04-26
  • 最后修改日期:2022-05-26
  • 錄用日期:2022-05-26
  • 在線發(fā)布日期: 2023-02-09
  • 出版日期: 2023-02-08