High temperature oxidation resistance of hot-pressed h-BN/ZrO2 composites

Yin Xu; Tianyu Ma; Xinhua Wang; Yinzhu Jiang; Mi Yan

doi:10.1016/j.ceramint.2014.03.146

High temperature oxidation resistance of hot-pressed h-BN/ZrO₂ composites

Yin Xu
, Tianyu Ma
, Xinhua Wang
, Yinzhu Jiang
, Mi Yan

Zhejiang University

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

34 Scopus citations

Abstract

Influences of ZrO₂ additive on the microstructure and high temperature oxidation behavior of h-BN/ZrO₂ composites have been investigated. In addition to the enhanced strength, the oxidation reaction between boron and oxygen can be effectively hindered even at 1200 °C when adding 20 wt% ZrO₂ into the h-BN matrix. Besides the doped ZrO ₂ particles, ZrB₂ and ZrB were also formed in the composites after sintering via the reaction between ZrO₂ and h-BN. The oxidation product ZrO₂ of these Zr-B compounds can act as protective layer during oxidation, which covers the sample surface and prevents further penetration of oxygen. Good oxidation resistance at 1200 °C and high strength make h-BN/ZrO₂ composites promising materials for high temperature applications.

Original language	English
Pages (from-to)	11171-11176
Number of pages	6
Journal	Ceramics International
Volume	40
Issue number	7 PART B
DOIs	https://doi.org/10.1016/j.ceramint.2014.03.146
State	Published - 2014
Externally published	Yes

Keywords

Hot-pressing
Oxidation resistance
h-BN

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10.1016/j.ceramint.2014.03.146

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title = "High temperature oxidation resistance of hot-pressed h-BN/ZrO2 composites",

abstract = "Influences of ZrO2 additive on the microstructure and high temperature oxidation behavior of h-BN/ZrO2 composites have been investigated. In addition to the enhanced strength, the oxidation reaction between boron and oxygen can be effectively hindered even at 1200 °C when adding 20 wt\% ZrO2 into the h-BN matrix. Besides the doped ZrO 2 particles, ZrB2 and ZrB were also formed in the composites after sintering via the reaction between ZrO2 and h-BN. The oxidation product ZrO2 of these Zr-B compounds can act as protective layer during oxidation, which covers the sample surface and prevents further penetration of oxygen. Good oxidation resistance at 1200 °C and high strength make h-BN/ZrO2 composites promising materials for high temperature applications.",

keywords = "Hot-pressing, Oxidation resistance, h-BN",

author = "Yin Xu and Tianyu Ma and Xinhua Wang and Yinzhu Jiang and Mi Yan",

year = "2014",

doi = "10.1016/j.ceramint.2014.03.146",

language = "英语",

volume = "40",

pages = "11171--11176",

journal = "Ceramics International",

issn = "0272-8842",

publisher = "Elsevier Ltd",

number = "7 PART B",

}

TY - JOUR

T1 - High temperature oxidation resistance of hot-pressed h-BN/ZrO2 composites

AU - Xu, Yin

AU - Ma, Tianyu

AU - Wang, Xinhua

AU - Jiang, Yinzhu

AU - Yan, Mi

PY - 2014

Y1 - 2014

N2 - Influences of ZrO2 additive on the microstructure and high temperature oxidation behavior of h-BN/ZrO2 composites have been investigated. In addition to the enhanced strength, the oxidation reaction between boron and oxygen can be effectively hindered even at 1200 °C when adding 20 wt% ZrO2 into the h-BN matrix. Besides the doped ZrO 2 particles, ZrB2 and ZrB were also formed in the composites after sintering via the reaction between ZrO2 and h-BN. The oxidation product ZrO2 of these Zr-B compounds can act as protective layer during oxidation, which covers the sample surface and prevents further penetration of oxygen. Good oxidation resistance at 1200 °C and high strength make h-BN/ZrO2 composites promising materials for high temperature applications.

AB - Influences of ZrO2 additive on the microstructure and high temperature oxidation behavior of h-BN/ZrO2 composites have been investigated. In addition to the enhanced strength, the oxidation reaction between boron and oxygen can be effectively hindered even at 1200 °C when adding 20 wt% ZrO2 into the h-BN matrix. Besides the doped ZrO 2 particles, ZrB2 and ZrB were also formed in the composites after sintering via the reaction between ZrO2 and h-BN. The oxidation product ZrO2 of these Zr-B compounds can act as protective layer during oxidation, which covers the sample surface and prevents further penetration of oxygen. Good oxidation resistance at 1200 °C and high strength make h-BN/ZrO2 composites promising materials for high temperature applications.

KW - Hot-pressing

KW - Oxidation resistance

KW - h-BN

UR - https://www.scopus.com/pages/publications/84900467969

U2 - 10.1016/j.ceramint.2014.03.146

DO - 10.1016/j.ceramint.2014.03.146

M3 - 文章

AN - SCOPUS:84900467969

SN - 0272-8842

VL - 40

SP - 11171

EP - 11176

JO - Ceramics International

JF - Ceramics International

IS - 7 PART B

ER -

High temperature oxidation resistance of hot-pressed h-BN/ZrO₂ composites

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Keywords

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