Hot corrosion behavior of V2O5-coated Gd2Zr2O7 ceramic in air at 700-850 °C

Zhan Guo Liu; Jia Hu Ouyang; Yu Zhou; Xiao Liang Xia

doi:10.1016/j.jeurceramsoc.2009.01.001

Hot corrosion behavior of V₂O₅-coated Gd₂Zr₂O₇ ceramic in air at 700-850 °C

Zhan Guo Liu
, Jia Hu Ouyang^*
, Yu Zhou
, Xiao Liang Xia

^*Corresponding author for this work

Harbin Institute of Technology

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

49 Scopus citations

Abstract

Gd₂Zr₂O₇ ceramic was prepared by solid state reaction at 1650 °C for 10 h in air, and exhibited a defect fluorite-type structure. Reaction between molten V₂O₅ and Gd₂Zr₂O₇ ceramic was investigated at temperatures ranging from 700 to 850 °C using an X-ray diffractometer (XRD) and scanning electron microscopy (SEM). Molten V₂O₅ reacted with Gd₂Zr₂O₇ to form ZrV₂O₇ and GdVO₄ at 700 °C; however, in a temperature range of 750-850 °C, molten V₂O₅ reacted with Gd₂Zr₂O₇ to form GdVO₄ and m-ZrO₂. Two different reactions observed at 700 °C and 750-850 °C could be explained based on the thermal instability of ZrV₂O₇.

Original language	English
Pages (from-to)	2423-2427
Number of pages	5
Journal	Journal of the European Ceramic Society
Volume	29
Issue number	11
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2009.01.001
State	Published - Aug 2009

Keywords

Corrosion
GdZrO
VO

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10.1016/j.jeurceramsoc.2009.01.001

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title = "Hot corrosion behavior of V2O5-coated Gd2Zr2O7 ceramic in air at 700-850 °C",

abstract = "Gd2Zr2O7 ceramic was prepared by solid state reaction at 1650 °C for 10 h in air, and exhibited a defect fluorite-type structure. Reaction between molten V2O5 and Gd2Zr2O7 ceramic was investigated at temperatures ranging from 700 to 850 °C using an X-ray diffractometer (XRD) and scanning electron microscopy (SEM). Molten V2O5 reacted with Gd2Zr2O7 to form ZrV2O7 and GdVO4 at 700 °C; however, in a temperature range of 750-850 °C, molten V2O5 reacted with Gd2Zr2O7 to form GdVO4 and m-ZrO2. Two different reactions observed at 700 °C and 750-850 °C could be explained based on the thermal instability of ZrV2O7.",

keywords = "Corrosion, GdZrO, VO",

author = "Liu, \{Zhan Guo\} and Ouyang, \{Jia Hu\} and Yu Zhou and Xia, \{Xiao Liang\}",

year = "2009",

month = aug,

doi = "10.1016/j.jeurceramsoc.2009.01.001",

language = "英语",

volume = "29",

pages = "2423--2427",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

publisher = "Elsevier B.V.",

number = "11",

}

TY - JOUR

T1 - Hot corrosion behavior of V2O5-coated Gd2Zr2O7 ceramic in air at 700-850 °C

AU - Liu, Zhan Guo

AU - Ouyang, Jia Hu

AU - Zhou, Yu

AU - Xia, Xiao Liang

PY - 2009/8

Y1 - 2009/8

N2 - Gd2Zr2O7 ceramic was prepared by solid state reaction at 1650 °C for 10 h in air, and exhibited a defect fluorite-type structure. Reaction between molten V2O5 and Gd2Zr2O7 ceramic was investigated at temperatures ranging from 700 to 850 °C using an X-ray diffractometer (XRD) and scanning electron microscopy (SEM). Molten V2O5 reacted with Gd2Zr2O7 to form ZrV2O7 and GdVO4 at 700 °C; however, in a temperature range of 750-850 °C, molten V2O5 reacted with Gd2Zr2O7 to form GdVO4 and m-ZrO2. Two different reactions observed at 700 °C and 750-850 °C could be explained based on the thermal instability of ZrV2O7.

AB - Gd2Zr2O7 ceramic was prepared by solid state reaction at 1650 °C for 10 h in air, and exhibited a defect fluorite-type structure. Reaction between molten V2O5 and Gd2Zr2O7 ceramic was investigated at temperatures ranging from 700 to 850 °C using an X-ray diffractometer (XRD) and scanning electron microscopy (SEM). Molten V2O5 reacted with Gd2Zr2O7 to form ZrV2O7 and GdVO4 at 700 °C; however, in a temperature range of 750-850 °C, molten V2O5 reacted with Gd2Zr2O7 to form GdVO4 and m-ZrO2. Two different reactions observed at 700 °C and 750-850 °C could be explained based on the thermal instability of ZrV2O7.

KW - Corrosion

KW - GdZrO

KW - VO

UR - https://www.scopus.com/pages/publications/67349215721

U2 - 10.1016/j.jeurceramsoc.2009.01.001

DO - 10.1016/j.jeurceramsoc.2009.01.001

M3 - 文章

AN - SCOPUS:67349215721

SN - 0955-2219

VL - 29

SP - 2423

EP - 2427

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 11

ER -

Hot corrosion behavior of V₂O₅-coated Gd₂Zr₂O₇ ceramic in air at 700-850 °C

Abstract

Keywords

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