Formation mechanism of micro-arc oxidation coatings formed on ZrB2-SiC ceramics

Xin Sun; Zhi Wang; Ping Hu

doi:10.1016/j.matchemphys.2009.11.028

Formation mechanism of micro-arc oxidation coatings formed on ZrB₂-SiC ceramics

Xin Sun
, Zhi Wang^*
, Ping Hu

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

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

7 Scopus citations

Abstract

The uniform coatings were fabricated successfully on the surface of the ZrB₂-SiC ceramic through the micro-arc oxidation (MAO) technique in sodium aluminate solution. The results of XRD analysis of the MAO coatings were obvious to indicate that the predominant phases for the surface of the MAO coatings were α-Al₂O₃, t-ZrO₂ and m-ZrO₂. The contents of α-Al₂O₃ and t-ZrO₂ in the MAO coatings gradually decreased as the coating thickness decreased. The effect of the MAO coatings on the ultrahigh temperature oxidation resistance of the ZrB₂-SiC ceramic was investigated, indicating that the oxidation resistance of the ZrB₂-SiC ceramic with the MAO coatings was significantly improved from 1700 °C to at least 2000 °C compared with bare ZrB₂-SiC ceramic.

Original language	English
Pages (from-to)	417-420
Number of pages	4
Journal	Materials Chemistry and Physics
Volume	120
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2009.11.028
State	Published - 15 Apr 2010

Keywords

Microstructure
Oxidation
ZrB-based ceramic

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10.1016/j.matchemphys.2009.11.028

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title = "Formation mechanism of micro-arc oxidation coatings formed on ZrB2-SiC ceramics",

abstract = "The uniform coatings were fabricated successfully on the surface of the ZrB2-SiC ceramic through the micro-arc oxidation (MAO) technique in sodium aluminate solution. The results of XRD analysis of the MAO coatings were obvious to indicate that the predominant phases for the surface of the MAO coatings were α-Al2O3, t-ZrO2 and m-ZrO2. The contents of α-Al2O3 and t-ZrO2 in the MAO coatings gradually decreased as the coating thickness decreased. The effect of the MAO coatings on the ultrahigh temperature oxidation resistance of the ZrB2-SiC ceramic was investigated, indicating that the oxidation resistance of the ZrB2-SiC ceramic with the MAO coatings was significantly improved from 1700 °C to at least 2000 °C compared with bare ZrB2-SiC ceramic.",

keywords = "Microstructure, Oxidation, ZrB-based ceramic",

author = "Xin Sun and Zhi Wang and Ping Hu",

year = "2010",

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doi = "10.1016/j.matchemphys.2009.11.028",

language = "英语",

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pages = "417--420",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

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TY - JOUR

T1 - Formation mechanism of micro-arc oxidation coatings formed on ZrB2-SiC ceramics

AU - Sun, Xin

AU - Wang, Zhi

AU - Hu, Ping

PY - 2010/4/15

Y1 - 2010/4/15

N2 - The uniform coatings were fabricated successfully on the surface of the ZrB2-SiC ceramic through the micro-arc oxidation (MAO) technique in sodium aluminate solution. The results of XRD analysis of the MAO coatings were obvious to indicate that the predominant phases for the surface of the MAO coatings were α-Al2O3, t-ZrO2 and m-ZrO2. The contents of α-Al2O3 and t-ZrO2 in the MAO coatings gradually decreased as the coating thickness decreased. The effect of the MAO coatings on the ultrahigh temperature oxidation resistance of the ZrB2-SiC ceramic was investigated, indicating that the oxidation resistance of the ZrB2-SiC ceramic with the MAO coatings was significantly improved from 1700 °C to at least 2000 °C compared with bare ZrB2-SiC ceramic.

AB - The uniform coatings were fabricated successfully on the surface of the ZrB2-SiC ceramic through the micro-arc oxidation (MAO) technique in sodium aluminate solution. The results of XRD analysis of the MAO coatings were obvious to indicate that the predominant phases for the surface of the MAO coatings were α-Al2O3, t-ZrO2 and m-ZrO2. The contents of α-Al2O3 and t-ZrO2 in the MAO coatings gradually decreased as the coating thickness decreased. The effect of the MAO coatings on the ultrahigh temperature oxidation resistance of the ZrB2-SiC ceramic was investigated, indicating that the oxidation resistance of the ZrB2-SiC ceramic with the MAO coatings was significantly improved from 1700 °C to at least 2000 °C compared with bare ZrB2-SiC ceramic.

KW - Microstructure

KW - Oxidation

KW - ZrB-based ceramic

UR - https://www.scopus.com/pages/publications/77649235915

U2 - 10.1016/j.matchemphys.2009.11.028

DO - 10.1016/j.matchemphys.2009.11.028

M3 - 文章

AN - SCOPUS:77649235915

SN - 0254-0584

VL - 120

SP - 417

EP - 420

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 2-3

ER -

Formation mechanism of micro-arc oxidation coatings formed on ZrB₂-SiC ceramics

Abstract

Keywords

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