Hot corrosion behavior of YSZ in the presence of V2O5

Huai Bei Feng; Qiang Xu; Shi Zhen Zhu; Ling Liu

Hot corrosion behavior of YSZ in the presence of V₂O₅

Huai Bei Feng
, Qiang Xu^*
, Shi Zhen Zhu
, Ling Liu

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

Abstract

Hot corrosion tests were carried out on the yttria-stabilized zirconia (YSZ) specimen in molten salt V₂O₅ at different temperature. Results show that: at 650°C and 750°C for 20 h, almost corrosion product was ZrV₂O₇ in cubic shape and YVO₄, meanwhile there was small amount of monoclinic ZrO₂. Due to vanadium pentoxide melted, the rate of reaction increased at 750°C. When corrosion occurred above 750°C, ZrV₂O₇ did not exist. Y₂O₃ was acidic dissolved with liquated V₂O₅, so the phase transition of m-ZrO₂ accelerated. In higher temperature, m-ZrO₂ grains increased and distributed with no rules, the intergranular crack became larger.

Original language	English
Pages (from-to)	1222-1224
Number of pages	3
Journal	Rengong Jingti Xuebao/Journal of Synthetic Crystals
Volume	42
Issue number	6
Publication status	Published - Jun 2013

Keywords

Hot corrosion
Vanadium pentoxide
YSZ

Cite this

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title = "Hot corrosion behavior of YSZ in the presence of V2O5",

abstract = "Hot corrosion tests were carried out on the yttria-stabilized zirconia (YSZ) specimen in molten salt V2O5 at different temperature. Results show that: at 650°C and 750°C for 20 h, almost corrosion product was ZrV2O7 in cubic shape and YVO4, meanwhile there was small amount of monoclinic ZrO2. Due to vanadium pentoxide melted, the rate of reaction increased at 750°C. When corrosion occurred above 750°C, ZrV2O7 did not exist. Y2O3 was acidic dissolved with liquated V2O5, so the phase transition of m-ZrO2 accelerated. In higher temperature, m-ZrO2 grains increased and distributed with no rules, the intergranular crack became larger.",

keywords = "Hot corrosion, Vanadium pentoxide, YSZ",

author = "Feng, \{Huai Bei\} and Qiang Xu and Zhu, \{Shi Zhen\} and Ling Liu",

year = "2013",

month = jun,

language = "English",

volume = "42",

pages = "1222--1224",

journal = "Rengong Jingti Xuebao/Journal of Synthetic Crystals",

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TY - JOUR

T1 - Hot corrosion behavior of YSZ in the presence of V2O5

AU - Feng, Huai Bei

AU - Xu, Qiang

AU - Zhu, Shi Zhen

AU - Liu, Ling

PY - 2013/6

Y1 - 2013/6

N2 - Hot corrosion tests were carried out on the yttria-stabilized zirconia (YSZ) specimen in molten salt V2O5 at different temperature. Results show that: at 650°C and 750°C for 20 h, almost corrosion product was ZrV2O7 in cubic shape and YVO4, meanwhile there was small amount of monoclinic ZrO2. Due to vanadium pentoxide melted, the rate of reaction increased at 750°C. When corrosion occurred above 750°C, ZrV2O7 did not exist. Y2O3 was acidic dissolved with liquated V2O5, so the phase transition of m-ZrO2 accelerated. In higher temperature, m-ZrO2 grains increased and distributed with no rules, the intergranular crack became larger.

AB - Hot corrosion tests were carried out on the yttria-stabilized zirconia (YSZ) specimen in molten salt V2O5 at different temperature. Results show that: at 650°C and 750°C for 20 h, almost corrosion product was ZrV2O7 in cubic shape and YVO4, meanwhile there was small amount of monoclinic ZrO2. Due to vanadium pentoxide melted, the rate of reaction increased at 750°C. When corrosion occurred above 750°C, ZrV2O7 did not exist. Y2O3 was acidic dissolved with liquated V2O5, so the phase transition of m-ZrO2 accelerated. In higher temperature, m-ZrO2 grains increased and distributed with no rules, the intergranular crack became larger.

KW - Hot corrosion

KW - Vanadium pentoxide

KW - YSZ

UR - https://www.scopus.com/pages/publications/84880372569

M3 - Article

AN - SCOPUS:84880372569

SN - 1000-985X

VL - 42

SP - 1222

EP - 1224

JO - Rengong Jingti Xuebao/Journal of Synthetic Crystals

JF - Rengong Jingti Xuebao/Journal of Synthetic Crystals

IS - 6

ER -

Hot corrosion behavior of YSZ in the presence of V₂O₅

Abstract

Keywords

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