Preparation of a high spectral emissivity TaSi2-based hybrid coating on SiOC-modified carbon-bonded carbon fiber composite by a flash sintering method

Bin Du; Shitong Zhou; Xinghong Zhang; Changqing Hong; Qiang Qu

doi:10.1016/j.surfcoat.2018.07.019

Preparation of a high spectral emissivity TaSi₂-based hybrid coating on SiOC-modified carbon-bonded carbon fiber composite by a flash sintering method

Bin Du^*
, Shitong Zhou
, Xinghong Zhang
, Changqing Hong
, Qiang Qu

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
China Aerospace Science and Technology Corporation

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

28 Scopus citations

Abstract

The most recent and innovative metal disilicide-based hybrid coatings are used for protecting carbon fiber-based composites in aerospace application. Here, we investigate a high emissivity coating on SiOC-modified carbon-bonded carbon fiber composites (SiOC/CBCF) for thermal protection material. Both tantalum silicide (TaSi₂) and molybdenum silicide (MoSi₂)-based coatings are prepared on SiOC/CBCF composites using flash sintering method, and the emissivity value of MoSi₂-based coating is higher than that of TaSi₂-based coating. Significantly, improvement the density of the coating has a positive role on emissivity resulting in MoSi₂-based coating increases about 7.2% at 400 °C and 11.5% at 1000 °C, respectively; TaSi₂-based coating increases about 15.4% at 400 °C and 2.6% at 1000 °C. After exposure to 1500 °C for 60 min in air, the emissivity values of the coated-samples are also investigated.

Original language	English
Pages (from-to)	146-153
Number of pages	8
Journal	Surface and Coatings Technology
Volume	350
DOIs	https://doi.org/10.1016/j.surfcoat.2018.07.019
State	Published - 25 Sep 2018

Keywords

High spectral emissivity
SiOC/CBCF composites
TaSi- and MoSi-based coatings

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10.1016/j.surfcoat.2018.07.019

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title = "Preparation of a high spectral emissivity TaSi2-based hybrid coating on SiOC-modified carbon-bonded carbon fiber composite by a flash sintering method",

abstract = "The most recent and innovative metal disilicide-based hybrid coatings are used for protecting carbon fiber-based composites in aerospace application. Here, we investigate a high emissivity coating on SiOC-modified carbon-bonded carbon fiber composites (SiOC/CBCF) for thermal protection material. Both tantalum silicide (TaSi2) and molybdenum silicide (MoSi2)-based coatings are prepared on SiOC/CBCF composites using flash sintering method, and the emissivity value of MoSi2-based coating is higher than that of TaSi2-based coating. Significantly, improvement the density of the coating has a positive role on emissivity resulting in MoSi2-based coating increases about 7.2\% at 400 °C and 11.5\% at 1000 °C, respectively; TaSi2-based coating increases about 15.4\% at 400 °C and 2.6\% at 1000 °C. After exposure to 1500 °C for 60 min in air, the emissivity values of the coated-samples are also investigated.",

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author = "Bin Du and Shitong Zhou and Xinghong Zhang and Changqing Hong and Qiang Qu",

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doi = "10.1016/j.surfcoat.2018.07.019",

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AU - Du, Bin

AU - Zhou, Shitong

AU - Zhang, Xinghong

AU - Hong, Changqing

AU - Qu, Qiang

PY - 2018/9/25

Y1 - 2018/9/25

N2 - The most recent and innovative metal disilicide-based hybrid coatings are used for protecting carbon fiber-based composites in aerospace application. Here, we investigate a high emissivity coating on SiOC-modified carbon-bonded carbon fiber composites (SiOC/CBCF) for thermal protection material. Both tantalum silicide (TaSi2) and molybdenum silicide (MoSi2)-based coatings are prepared on SiOC/CBCF composites using flash sintering method, and the emissivity value of MoSi2-based coating is higher than that of TaSi2-based coating. Significantly, improvement the density of the coating has a positive role on emissivity resulting in MoSi2-based coating increases about 7.2% at 400 °C and 11.5% at 1000 °C, respectively; TaSi2-based coating increases about 15.4% at 400 °C and 2.6% at 1000 °C. After exposure to 1500 °C for 60 min in air, the emissivity values of the coated-samples are also investigated.

AB - The most recent and innovative metal disilicide-based hybrid coatings are used for protecting carbon fiber-based composites in aerospace application. Here, we investigate a high emissivity coating on SiOC-modified carbon-bonded carbon fiber composites (SiOC/CBCF) for thermal protection material. Both tantalum silicide (TaSi2) and molybdenum silicide (MoSi2)-based coatings are prepared on SiOC/CBCF composites using flash sintering method, and the emissivity value of MoSi2-based coating is higher than that of TaSi2-based coating. Significantly, improvement the density of the coating has a positive role on emissivity resulting in MoSi2-based coating increases about 7.2% at 400 °C and 11.5% at 1000 °C, respectively; TaSi2-based coating increases about 15.4% at 400 °C and 2.6% at 1000 °C. After exposure to 1500 °C for 60 min in air, the emissivity values of the coated-samples are also investigated.

KW - High spectral emissivity

KW - SiOC/CBCF composites

KW - TaSi- and MoSi-based coatings

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DO - 10.1016/j.surfcoat.2018.07.019

M3 - 文章

AN - SCOPUS:85049877606

SN - 0257-8972

VL - 350

SP - 146

EP - 153

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Preparation of a high spectral emissivity TaSi₂-based hybrid coating on SiOC-modified carbon-bonded carbon fiber composite by a flash sintering method

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Keywords

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