Carbon nanowires reinforced porous SiO                         2                         /3Al                         2                         O                         3                         ·2SiO                         2                          ceramics with tunable electromagnetic absorption properties

Yongpeng Dong; Xiaowei Yin; Hanjun Wei; Minghang Li; Zexin Hou; Hailong Xu; Laifei Cheng; Litong Zhang

doi:10.1016/j.ceramint.2019.02.209

Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties

Yongpeng Dong, Xiaowei Yin, Hanjun Wei, Minghang Li, Zexin Hou, Hailong Xu, Laifei Cheng, Litong Zhang

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics decorated with carbon nanowires (CNWs) were manufactured by catalytic chemical vapor deposition (CCVD) for wide absorption band and high absorption application. The results show that the as-prepared CNWs grow uniformly in porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics to form the three dimensional(3D) structure. The content of CNWs can be effectively controlled by changing the weight of catalyst, and the dielectric properties of CNWs-SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ composite ceramics can be tuned. As expected, the CNWs-SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ composite ceramics possess wonderful electromagnetic (EM) absorption properties due to the effects of conductive loss, impedance match and dipoles polarization. It can be concluded that the minimum reflection coefficient (RC _min ) of CNWs-SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ composite ceramics reaches −31 dB at 9.1 GHz (which means 99.9% of EM wave powers are absorbed) and the effective absorption bandwidth (EAB) covers the whole X-band (8.2–12.4 GHz) at the thickness of 5.0 mm.

Original language	English
Pages (from-to)	11316-11324
Number of pages	9
Journal	Ceramics International
Volume	45
Issue number	9
DOIs	https://doi.org/10.1016/j.ceramint.2019.02.209
State	Published - 15 Jun 2019

Keywords

Carbon nanowires
Catalytic chemical vapor deposition
EM wave absorption properties
Porous SiO /3Al O ·2SiO ceramics

Access to Document

10.1016/j.ceramint.2019.02.209

Cite this

Dong, Y., Yin, X., Wei, H., Li, M., Hou, Z., Xu, H., Cheng, L., & Zhang, L. (2019). Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties Ceramics International, 45(9), 11316-11324. https://doi.org/10.1016/j.ceramint.2019.02.209

Dong, Yongpeng ; Yin, Xiaowei ; Wei, Hanjun et al. / Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties In: Ceramics International. 2019 ; Vol. 45, No. 9. pp. 11316-11324.

@article{6f3a629f112d413786e7888a4ec686ab,

title = " Carbon nanowires reinforced porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics with tunable electromagnetic absorption properties ",

abstract = " Porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics decorated with carbon nanowires (CNWs) were manufactured by catalytic chemical vapor deposition (CCVD) for wide absorption band and high absorption application. The results show that the as-prepared CNWs grow uniformly in porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics to form the three dimensional(3D) structure. The content of CNWs can be effectively controlled by changing the weight of catalyst, and the dielectric properties of CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics can be tuned. As expected, the CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics possess wonderful electromagnetic (EM) absorption properties due to the effects of conductive loss, impedance match and dipoles polarization. It can be concluded that the minimum reflection coefficient (RC min ) of CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics reaches −31 dB at 9.1 GHz (which means 99.9% of EM wave powers are absorbed) and the effective absorption bandwidth (EAB) covers the whole X-band (8.2–12.4 GHz) at the thickness of 5.0 mm.",

keywords = "Carbon nanowires, Catalytic chemical vapor deposition, EM wave absorption properties, Porous SiO /3Al O ·2SiO ceramics",

author = "Yongpeng Dong and Xiaowei Yin and Hanjun Wei and Minghang Li and Zexin Hou and Hailong Xu and Laifei Cheng and Litong Zhang",

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

year = "2019",

month = jun,

day = "15",

doi = "10.1016/j.ceramint.2019.02.209",

language = "英语",

volume = "45",

pages = "11316--11324",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "9",

}

Dong, Y, Yin, X, Wei, H, Li, M, Hou, Z, Xu, H , Cheng, L & Zhang, L 2019, ' Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties ', Ceramics International, vol. 45, no. 9, pp. 11316-11324. https://doi.org/10.1016/j.ceramint.2019.02.209

Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties . / Dong, Yongpeng; Yin, Xiaowei; Wei, Hanjun et al.
In: Ceramics International, Vol. 45, No. 9, 15.06.2019, p. 11316-11324.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Carbon nanowires reinforced porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics with tunable electromagnetic absorption properties

AU - Dong, Yongpeng

AU - Yin, Xiaowei

AU - Wei, Hanjun

AU - Li, Minghang

AU - Hou, Zexin

AU - Xu, Hailong

AU - Cheng, Laifei

AU - Zhang, Litong

PY - 2019/6/15

Y1 - 2019/6/15

N2 - Porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics decorated with carbon nanowires (CNWs) were manufactured by catalytic chemical vapor deposition (CCVD) for wide absorption band and high absorption application. The results show that the as-prepared CNWs grow uniformly in porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics to form the three dimensional(3D) structure. The content of CNWs can be effectively controlled by changing the weight of catalyst, and the dielectric properties of CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics can be tuned. As expected, the CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics possess wonderful electromagnetic (EM) absorption properties due to the effects of conductive loss, impedance match and dipoles polarization. It can be concluded that the minimum reflection coefficient (RC min ) of CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics reaches −31 dB at 9.1 GHz (which means 99.9% of EM wave powers are absorbed) and the effective absorption bandwidth (EAB) covers the whole X-band (8.2–12.4 GHz) at the thickness of 5.0 mm.

AB - Porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics decorated with carbon nanowires (CNWs) were manufactured by catalytic chemical vapor deposition (CCVD) for wide absorption band and high absorption application. The results show that the as-prepared CNWs grow uniformly in porous SiO 2 /3Al 2 O 3 ·2SiO 2 ceramics to form the three dimensional(3D) structure. The content of CNWs can be effectively controlled by changing the weight of catalyst, and the dielectric properties of CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics can be tuned. As expected, the CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics possess wonderful electromagnetic (EM) absorption properties due to the effects of conductive loss, impedance match and dipoles polarization. It can be concluded that the minimum reflection coefficient (RC min ) of CNWs-SiO 2 /3Al 2 O 3 ·2SiO 2 composite ceramics reaches −31 dB at 9.1 GHz (which means 99.9% of EM wave powers are absorbed) and the effective absorption bandwidth (EAB) covers the whole X-band (8.2–12.4 GHz) at the thickness of 5.0 mm.

KW - Carbon nanowires

KW - Catalytic chemical vapor deposition

KW - EM wave absorption properties

KW - Porous SiO /3Al O ·2SiO ceramics

UR - http://www.scopus.com/inward/record.url?scp=85062897730&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2019.02.209

DO - 10.1016/j.ceramint.2019.02.209

M3 - 文章

AN - SCOPUS:85062897730

SN - 0272-8842

VL - 45

SP - 11316

EP - 11324

JO - Ceramics International

JF - Ceramics International

IS - 9

ER -

Dong Y, Yin X, Wei H, Li M, Hou Z, Xu H et al. Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties Ceramics International. 2019 Jun 15;45(9):11316-11324. doi: 10.1016/j.ceramint.2019.02.209

Carbon nanowires reinforced porous SiO ₂ /3Al ₂ O ₃ ·2SiO ₂ ceramics with tunable electromagnetic absorption properties

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this