Synthesis, electromagnetic reflection loss and oxidation resistance of pyrolytic carbon-Si 3N 4 ceramics with dense Si 3N 4 coating

Xiangming Li; Litong Zhang; Xiaowei Yin

doi:10.1016/j.jeurceramsoc.2012.01.027

Synthesis, electromagnetic reflection loss and oxidation resistance of pyrolytic carbon-Si ₃N ₄ ceramics with dense Si ₃N ₄ coating

Xiangming Li, Litong Zhang, Xiaowei Yin

School of Materials Sience and Engineering

Northwest Agriculture and Forestry University

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

31 Scopus citations

Abstract

Si ₃N ₄-coated porous pyrolytic carbon-Si ₃N ₄ ceramics (PyC-Si ₃N ₄/Si ₃N ₄) were fabricated by chemical vapour infiltration of PyC into porous Si ₃N ₄ ceramic and then chemical vapour deposition of Si ₃N ₄ coating on the surface of the obtained PyC-Si ₃N ₄. The PyC-Si ₃N ₄/Si ₃N ₄ with 3.1vol.% PyC content possesses electromagnetic reflection loss as low as -11.5dB. Due to the excellent sealing effect of dense Si ₃N ₄ coating, the PyC-Si ₃N ₄/Si ₃N ₄ possesses good oxidation resistance, which makes PyC-Si ₃N ₄/Si ₃N ₄ a good electromagnetic absorbing material that can be used at temperature as high as 1100°C.

Original language	English
Pages (from-to)	1485-1489
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	32
Issue number	8
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2012.01.027
State	Published - Jul 2012

Keywords

Carbon
Chemical vapour deposition
Functional applications
Porosity
Si N

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10.1016/j.jeurceramsoc.2012.01.027

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title = "Synthesis, electromagnetic reflection loss and oxidation resistance of pyrolytic carbon-Si 3N 4 ceramics with dense Si 3N 4 coating",

abstract = "Si 3N 4-coated porous pyrolytic carbon-Si 3N 4 ceramics (PyC-Si 3N 4/Si 3N 4) were fabricated by chemical vapour infiltration of PyC into porous Si 3N 4 ceramic and then chemical vapour deposition of Si 3N 4 coating on the surface of the obtained PyC-Si 3N 4. The PyC-Si 3N 4/Si 3N 4 with 3.1vol.% PyC content possesses electromagnetic reflection loss as low as -11.5dB. Due to the excellent sealing effect of dense Si 3N 4 coating, the PyC-Si 3N 4/Si 3N 4 possesses good oxidation resistance, which makes PyC-Si 3N 4/Si 3N 4 a good electromagnetic absorbing material that can be used at temperature as high as 1100°C.",

keywords = "Carbon, Chemical vapour deposition, Functional applications, Porosity, Si N",

author = "Xiangming Li and Litong Zhang and Xiaowei Yin",

year = "2012",

month = jul,

doi = "10.1016/j.jeurceramsoc.2012.01.027",

language = "英语",

volume = "32",

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journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

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number = "8",

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TY - JOUR

T1 - Synthesis, electromagnetic reflection loss and oxidation resistance of pyrolytic carbon-Si 3N 4 ceramics with dense Si 3N 4 coating

AU - Li, Xiangming

AU - Zhang, Litong

AU - Yin, Xiaowei

PY - 2012/7

Y1 - 2012/7

N2 - Si 3N 4-coated porous pyrolytic carbon-Si 3N 4 ceramics (PyC-Si 3N 4/Si 3N 4) were fabricated by chemical vapour infiltration of PyC into porous Si 3N 4 ceramic and then chemical vapour deposition of Si 3N 4 coating on the surface of the obtained PyC-Si 3N 4. The PyC-Si 3N 4/Si 3N 4 with 3.1vol.% PyC content possesses electromagnetic reflection loss as low as -11.5dB. Due to the excellent sealing effect of dense Si 3N 4 coating, the PyC-Si 3N 4/Si 3N 4 possesses good oxidation resistance, which makes PyC-Si 3N 4/Si 3N 4 a good electromagnetic absorbing material that can be used at temperature as high as 1100°C.

AB - Si 3N 4-coated porous pyrolytic carbon-Si 3N 4 ceramics (PyC-Si 3N 4/Si 3N 4) were fabricated by chemical vapour infiltration of PyC into porous Si 3N 4 ceramic and then chemical vapour deposition of Si 3N 4 coating on the surface of the obtained PyC-Si 3N 4. The PyC-Si 3N 4/Si 3N 4 with 3.1vol.% PyC content possesses electromagnetic reflection loss as low as -11.5dB. Due to the excellent sealing effect of dense Si 3N 4 coating, the PyC-Si 3N 4/Si 3N 4 possesses good oxidation resistance, which makes PyC-Si 3N 4/Si 3N 4 a good electromagnetic absorbing material that can be used at temperature as high as 1100°C.

KW - Carbon

KW - Chemical vapour deposition

KW - Functional applications

KW - Porosity

KW - Si N

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DO - 10.1016/j.jeurceramsoc.2012.01.027

M3 - 文章

AN - SCOPUS:84862825497

SN - 0955-2219

VL - 32

SP - 1485

EP - 1489

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 8

ER -

Synthesis, electromagnetic reflection loss and oxidation resistance of pyrolytic carbon-Si ₃N ₄ ceramics with dense Si ₃N ₄ coating

Abstract

Keywords

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