ZrB2-SiC-Ta4HfC5/Ta4HfC5 Oxidation-Resistant Dual-Layer Coating Fabricated by Spark Plasma Sintering for C/C Composites

Changling Zhou; Yushi Qi; Yehong Cheng; Wenbo Han

doi:10.1007/s11665-018-3807-7

ZrB₂-SiC-Ta₄HfC₅/Ta₄HfC₅ Oxidation-Resistant Dual-Layer Coating Fabricated by Spark Plasma Sintering for C/C Composites

Changling Zhou
, Yushi Qi^*
, Yehong Cheng
, Wenbo Han

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Harbin Institute of Technology

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

12 Scopus citations

Abstract

In this work, a ZrB₂-SiC-Ta₄HfC₅/Ta₄HfC₅ oxidation-resistant dual-layer coating was fabricated to improve the oxidation resistance of carbon–carbon (C/C) composites. The coating was prepared by pack cementation combined with the slurry paste method. Spark plasma sintering was used in the procedure. The as-prepared dual-layer coating was approximately 110 μm, and no distinct interface was observed between the coating and the matrix. The isothermal oxidation test results showed that the dual coating effectively prevented C/C composites from oxidizing. The weight loss of the coated samples was only 3.3 and 9.5% after oxidation at 1773 K for 20 h and ten thermal shock cycles between 1773 K and room temperature in air, respectively. The pores and microcracks were the main reason for the failure of the coating.

Original language	English
Pages (from-to)	512-518
Number of pages	7
Journal	Journal of Materials Engineering and Performance
Volume	28
Issue number	1
DOIs	https://doi.org/10.1007/s11665-018-3807-7
State	Published - 1 Jan 2019

Keywords

ZrB-SiC-TaHfC
dual-layer coating
oxidation resistance
spark plasma sintering

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10.1007/s11665-018-3807-7

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title = "ZrB2-SiC-Ta4HfC5/Ta4HfC5 Oxidation-Resistant Dual-Layer Coating Fabricated by Spark Plasma Sintering for C/C Composites",

abstract = "In this work, a ZrB2-SiC-Ta4HfC5/Ta4HfC5 oxidation-resistant dual-layer coating was fabricated to improve the oxidation resistance of carbon–carbon (C/C) composites. The coating was prepared by pack cementation combined with the slurry paste method. Spark plasma sintering was used in the procedure. The as-prepared dual-layer coating was approximately 110 μm, and no distinct interface was observed between the coating and the matrix. The isothermal oxidation test results showed that the dual coating effectively prevented C/C composites from oxidizing. The weight loss of the coated samples was only 3.3 and 9.5\% after oxidation at 1773 K for 20 h and ten thermal shock cycles between 1773 K and room temperature in air, respectively. The pores and microcracks were the main reason for the failure of the coating.",

keywords = "ZrB-SiC-TaHfC, dual-layer coating, oxidation resistance, spark plasma sintering",

author = "Changling Zhou and Yushi Qi and Yehong Cheng and Wenbo Han",

note = "Publisher Copyright: {\textcopyright} 2018, ASM International.",

year = "2019",

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doi = "10.1007/s11665-018-3807-7",

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T1 - ZrB2-SiC-Ta4HfC5/Ta4HfC5 Oxidation-Resistant Dual-Layer Coating Fabricated by Spark Plasma Sintering for C/C Composites

AU - Zhou, Changling

AU - Qi, Yushi

AU - Cheng, Yehong

AU - Han, Wenbo

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In this work, a ZrB2-SiC-Ta4HfC5/Ta4HfC5 oxidation-resistant dual-layer coating was fabricated to improve the oxidation resistance of carbon–carbon (C/C) composites. The coating was prepared by pack cementation combined with the slurry paste method. Spark plasma sintering was used in the procedure. The as-prepared dual-layer coating was approximately 110 μm, and no distinct interface was observed between the coating and the matrix. The isothermal oxidation test results showed that the dual coating effectively prevented C/C composites from oxidizing. The weight loss of the coated samples was only 3.3 and 9.5% after oxidation at 1773 K for 20 h and ten thermal shock cycles between 1773 K and room temperature in air, respectively. The pores and microcracks were the main reason for the failure of the coating.

AB - In this work, a ZrB2-SiC-Ta4HfC5/Ta4HfC5 oxidation-resistant dual-layer coating was fabricated to improve the oxidation resistance of carbon–carbon (C/C) composites. The coating was prepared by pack cementation combined with the slurry paste method. Spark plasma sintering was used in the procedure. The as-prepared dual-layer coating was approximately 110 μm, and no distinct interface was observed between the coating and the matrix. The isothermal oxidation test results showed that the dual coating effectively prevented C/C composites from oxidizing. The weight loss of the coated samples was only 3.3 and 9.5% after oxidation at 1773 K for 20 h and ten thermal shock cycles between 1773 K and room temperature in air, respectively. The pores and microcracks were the main reason for the failure of the coating.

KW - ZrB-SiC-TaHfC

KW - dual-layer coating

KW - oxidation resistance

KW - spark plasma sintering

UR - https://www.scopus.com/pages/publications/85058477502

U2 - 10.1007/s11665-018-3807-7

DO - 10.1007/s11665-018-3807-7

M3 - 文章

AN - SCOPUS:85058477502

SN - 1059-9495

VL - 28

SP - 512

EP - 518

JO - Journal of Materials Engineering and Performance

JF - Journal of Materials Engineering and Performance

IS - 1

ER -

ZrB₂-SiC-Ta₄HfC₅/Ta₄HfC₅ Oxidation-Resistant Dual-Layer Coating Fabricated by Spark Plasma Sintering for C/C Composites

Abstract

Keywords

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