3D printing of PDC-SiOC@SiC twins with high permittivity and electromagnetic interference shielding effectiveness

Wenqiang Yang; Dou Yang; Hui Mei; Li Yao; Shanshan Xiao; Yongtao Yao; Chao Chen; Laifei Cheng

doi:10.1016/j.jeurceramsoc.2021.04.048

3D printing of PDC-SiOC@SiC twins with high permittivity and electromagnetic interference shielding effectiveness

Wenqiang Yang, Dou Yang, Hui Mei, Li Yao, Shanshan Xiao, Yongtao Yao, Chao Chen, Laifei Cheng

School of Materials Sience and Engineering

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

38 Scopus citations

Abstract

Effective electromagnetic interference (EMI) shielding requires materials with high permittivity. The current study reports 3D printed polymer-derived SiOC ceramics (PDC) modified with SiC nanowires (SiC_nw) exhibiting both high real and imaginary parts of permittivity within X-band. SEM results indicated that a large number of pores and cracks exist in the SiOC, and twinned SiC_nw were uniformly grown among them along with the existence of graphite microcrystals when the sintering temperature was 1500 ℃. The real part of permittivity ranged from 16.6 to 28.9 while the imaginary part from 31.7 to 34.2 in X-band. The EMI total shielding effectiveness (SE_T) of the ceramics could reach 34.7 dB with absorption loss (SE_A) of 29.3 dB and reflection loss (SE_R) of 5.4 dB. Meanwhile, the 3D printed PDC-SiOC ceramics at 900 ℃ sintering temperature possess certain mechanical properties with the magnitude of compressive strength being 12.57 MPa.

Original language	English
Pages (from-to)	5437-5444
Number of pages	8
Journal	Journal of the European Ceramic Society
Volume	41
Issue number	11
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2021.04.048
State	Published - Sep 2021

Keywords

3D printing
Electromagnetic interference shielding
Permittivity
Polymer derived ceramics
SiC nanowires

Access to Document

10.1016/j.jeurceramsoc.2021.04.048

Cite this

@article{632743393d1f4ec28c967a29c398216c,

title = "3D printing of PDC-SiOC@SiC twins with high permittivity and electromagnetic interference shielding effectiveness",

abstract = "Effective electromagnetic interference (EMI) shielding requires materials with high permittivity. The current study reports 3D printed polymer-derived SiOC ceramics (PDC) modified with SiC nanowires (SiCnw) exhibiting both high real and imaginary parts of permittivity within X-band. SEM results indicated that a large number of pores and cracks exist in the SiOC, and twinned SiCnw were uniformly grown among them along with the existence of graphite microcrystals when the sintering temperature was 1500 ℃. The real part of permittivity ranged from 16.6 to 28.9 while the imaginary part from 31.7 to 34.2 in X-band. The EMI total shielding effectiveness (SET) of the ceramics could reach 34.7 dB with absorption loss (SEA) of 29.3 dB and reflection loss (SER) of 5.4 dB. Meanwhile, the 3D printed PDC-SiOC ceramics at 900 ℃ sintering temperature possess certain mechanical properties with the magnitude of compressive strength being 12.57 MPa.",

keywords = "3D printing, Electromagnetic interference shielding, Permittivity, Polymer derived ceramics, SiC nanowires",

author = "Wenqiang Yang and Dou Yang and Hui Mei and Li Yao and Shanshan Xiao and Yongtao Yao and Chao Chen and Laifei Cheng",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = sep,

doi = "10.1016/j.jeurceramsoc.2021.04.048",

language = "英语",

volume = "41",

pages = "5437--5444",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "11",

}

TY - JOUR

T1 - 3D printing of PDC-SiOC@SiC twins with high permittivity and electromagnetic interference shielding effectiveness

AU - Yang, Wenqiang

AU - Yang, Dou

AU - Mei, Hui

AU - Yao, Li

AU - Xiao, Shanshan

AU - Yao, Yongtao

AU - Chen, Chao

AU - Cheng, Laifei

PY - 2021/9

Y1 - 2021/9

N2 - Effective electromagnetic interference (EMI) shielding requires materials with high permittivity. The current study reports 3D printed polymer-derived SiOC ceramics (PDC) modified with SiC nanowires (SiCnw) exhibiting both high real and imaginary parts of permittivity within X-band. SEM results indicated that a large number of pores and cracks exist in the SiOC, and twinned SiCnw were uniformly grown among them along with the existence of graphite microcrystals when the sintering temperature was 1500 ℃. The real part of permittivity ranged from 16.6 to 28.9 while the imaginary part from 31.7 to 34.2 in X-band. The EMI total shielding effectiveness (SET) of the ceramics could reach 34.7 dB with absorption loss (SEA) of 29.3 dB and reflection loss (SER) of 5.4 dB. Meanwhile, the 3D printed PDC-SiOC ceramics at 900 ℃ sintering temperature possess certain mechanical properties with the magnitude of compressive strength being 12.57 MPa.

AB - Effective electromagnetic interference (EMI) shielding requires materials with high permittivity. The current study reports 3D printed polymer-derived SiOC ceramics (PDC) modified with SiC nanowires (SiCnw) exhibiting both high real and imaginary parts of permittivity within X-band. SEM results indicated that a large number of pores and cracks exist in the SiOC, and twinned SiCnw were uniformly grown among them along with the existence of graphite microcrystals when the sintering temperature was 1500 ℃. The real part of permittivity ranged from 16.6 to 28.9 while the imaginary part from 31.7 to 34.2 in X-band. The EMI total shielding effectiveness (SET) of the ceramics could reach 34.7 dB with absorption loss (SEA) of 29.3 dB and reflection loss (SER) of 5.4 dB. Meanwhile, the 3D printed PDC-SiOC ceramics at 900 ℃ sintering temperature possess certain mechanical properties with the magnitude of compressive strength being 12.57 MPa.

KW - 3D printing

KW - Electromagnetic interference shielding

KW - Permittivity

KW - Polymer derived ceramics

KW - SiC nanowires

UR - http://www.scopus.com/inward/record.url?scp=85105601984&partnerID=8YFLogxK

U2 - 10.1016/j.jeurceramsoc.2021.04.048

DO - 10.1016/j.jeurceramsoc.2021.04.048

M3 - 文章

AN - SCOPUS:85105601984

SN - 0955-2219

VL - 41

SP - 5437

EP - 5444

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 11

ER -

3D printing of PDC-SiOC@SiC twins with high permittivity and electromagnetic interference shielding effectiveness

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this