Effect of heat treatment temperature on microstructure and electromagnetic shielding properties of graphene/SiBCN composites

Yue Wei; Liu Yongsheng; Zhao Mingxi; Ye Fang; Cheng Laifei

doi:10.1016/j.jmst.2019.07.018

Effect of heat treatment temperature on microstructure and electromagnetic shielding properties of graphene/SiBCN composites

Yue Wei
, Liu Yongsheng
, Zhao Mingxi
, Ye Fang
, Cheng Laifei

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

21 引用（Scopus）

摘要

Three-dimensional (3D) graphene/SiBCN composites (GF/SiBCN) were prepared by depositing SiBCN ceramics in 3D graphene foam via the chemical vapor infiltration technique. The effect of the heat treatment temperature on the microstructure, phase composition, and electromagnetic properties of the GF/SiBCN composite was investigated. The SiBCN ceramics maintained an amorphous structure in the composite below 1400 °C above which the crystallinity of the free carbon phase gradually increased. While the Si₃N₄ and B₄C phases started to crystallize at 1500 °C and their crystallinity increased with temperature, SiC was observed at 1700 °C. The electromagnetic shielding effectiveness of GF/SiBCN increased with the heat treatment temperature.

源语言	英语
页（从-至）	2897-2905
页数	9
期刊	Journal of Materials Science and Technology
卷	35
期	12
DOI	https://doi.org/10.1016/j.jmst.2019.07.018
出版状态	已出版 - 12月 2019

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title = "Effect of heat treatment temperature on microstructure and electromagnetic shielding properties of graphene/SiBCN composites",

abstract = "Three-dimensional (3D) graphene/SiBCN composites (GF/SiBCN) were prepared by depositing SiBCN ceramics in 3D graphene foam via the chemical vapor infiltration technique. The effect of the heat treatment temperature on the microstructure, phase composition, and electromagnetic properties of the GF/SiBCN composite was investigated. The SiBCN ceramics maintained an amorphous structure in the composite below 1400 °C above which the crystallinity of the free carbon phase gradually increased. While the Si3N4 and B4C phases started to crystallize at 1500 °C and their crystallinity increased with temperature, SiC was observed at 1700 °C. The electromagnetic shielding effectiveness of GF/SiBCN increased with the heat treatment temperature.",

keywords = "Chemical vapor deposition and infiltration, Electromagnetic shielding effectiveness, Heat treatment, Silicon-Boron carbonitride ceramics",

author = "Yue Wei and Liu Yongsheng and Zhao Mingxi and Ye Fang and Cheng Laifei",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = dec,

doi = "10.1016/j.jmst.2019.07.018",

language = "英语",

volume = "35",

pages = "2897--2905",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

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TY - JOUR

T1 - Effect of heat treatment temperature on microstructure and electromagnetic shielding properties of graphene/SiBCN composites

AU - Wei, Yue

AU - Yongsheng, Liu

AU - Mingxi, Zhao

AU - Fang, Ye

AU - Laifei, Cheng

PY - 2019/12

Y1 - 2019/12

N2 - Three-dimensional (3D) graphene/SiBCN composites (GF/SiBCN) were prepared by depositing SiBCN ceramics in 3D graphene foam via the chemical vapor infiltration technique. The effect of the heat treatment temperature on the microstructure, phase composition, and electromagnetic properties of the GF/SiBCN composite was investigated. The SiBCN ceramics maintained an amorphous structure in the composite below 1400 °C above which the crystallinity of the free carbon phase gradually increased. While the Si3N4 and B4C phases started to crystallize at 1500 °C and their crystallinity increased with temperature, SiC was observed at 1700 °C. The electromagnetic shielding effectiveness of GF/SiBCN increased with the heat treatment temperature.

AB - Three-dimensional (3D) graphene/SiBCN composites (GF/SiBCN) were prepared by depositing SiBCN ceramics in 3D graphene foam via the chemical vapor infiltration technique. The effect of the heat treatment temperature on the microstructure, phase composition, and electromagnetic properties of the GF/SiBCN composite was investigated. The SiBCN ceramics maintained an amorphous structure in the composite below 1400 °C above which the crystallinity of the free carbon phase gradually increased. While the Si3N4 and B4C phases started to crystallize at 1500 °C and their crystallinity increased with temperature, SiC was observed at 1700 °C. The electromagnetic shielding effectiveness of GF/SiBCN increased with the heat treatment temperature.

KW - Chemical vapor deposition and infiltration

KW - Electromagnetic shielding effectiveness

KW - Heat treatment

KW - Silicon-Boron carbonitride ceramics

UR - https://www.scopus.com/pages/publications/85075190791

U2 - 10.1016/j.jmst.2019.07.018

DO - 10.1016/j.jmst.2019.07.018

M3 - 文章

AN - SCOPUS:85075190791

SN - 1005-0302

VL - 35

SP - 2897

EP - 2905

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 12

ER -

Effect of heat treatment temperature on microstructure and electromagnetic shielding properties of graphene/SiBCN composites

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