Effect of Ti dopant on the mechanical properties and oxidation behavior of Zr2[Al(Si)]4C5 ceramics

Xinpo Lu; Huimin Xiang; Ling Feng He; Luchao Sun; Yanchun Zhou

doi:10.1111/j.1551-2916.2010.04300.x

Effect of Ti dopant on the mechanical properties and oxidation behavior of Zr₂[Al(Si)]₄C₅ ceramics

Xinpo Lu
, Huimin Xiang
, Ling Feng He
, Luchao Sun
, Yanchun Zhou

Materials and Fuels Complex

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

14 Scopus citations

Abstract

Ti-doped Zr₂[Al(Si)]₄C₅ solid solutions were prepared by an in situ hot-pressing method and its effect on the mechanical properties and high-temperature oxidation behavior were investigated. The solid solutions show comparable hardness, strength, and fracture toughness with Zr₂[Al(Si)]₄C₅ except modulus, which decreases with Ti dopant content. The stiffness is maintained up to 1600°C, which derives from the clean grain boundaries without glassy phases. The oxidation resistance of [Zr_1-x(Ti)_x]₂[Al(Si)] ₄C₅ solid solutions at 1000°-1300°C is improved remarkably. The improved oxidation resistance is mostly due to the formation of a more protective oxide scale consisting of (Zr,Ti)O₂, Al ₂O₃, and mullite.

Original language	English
Pages (from-to)	1872-1877
Number of pages	6
Journal	Journal of the American Ceramic Society
Volume	94
Issue number	6
DOIs	https://doi.org/10.1111/j.1551-2916.2010.04300.x
State	Published - Jun 2011

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title = "Effect of Ti dopant on the mechanical properties and oxidation behavior of Zr2[Al(Si)]4C5 ceramics",

abstract = "Ti-doped Zr2[Al(Si)]4C5 solid solutions were prepared by an in situ hot-pressing method and its effect on the mechanical properties and high-temperature oxidation behavior were investigated. The solid solutions show comparable hardness, strength, and fracture toughness with Zr2[Al(Si)]4C5 except modulus, which decreases with Ti dopant content. The stiffness is maintained up to 1600°C, which derives from the clean grain boundaries without glassy phases. The oxidation resistance of [Zr1-x(Ti)x]2[Al(Si)] 4C5 solid solutions at 1000°-1300°C is improved remarkably. The improved oxidation resistance is mostly due to the formation of a more protective oxide scale consisting of (Zr,Ti)O2, Al 2O3, and mullite.",

author = "Xinpo Lu and Huimin Xiang and He, \{Ling Feng\} and Luchao Sun and Yanchun Zhou",

year = "2011",

month = jun,

doi = "10.1111/j.1551-2916.2010.04300.x",

language = "English",

volume = "94",

pages = "1872--1877",

journal = "Journal of the American Ceramic Society",

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TY - JOUR

T1 - Effect of Ti dopant on the mechanical properties and oxidation behavior of Zr2[Al(Si)]4C5 ceramics

AU - Lu, Xinpo

AU - Xiang, Huimin

AU - He, Ling Feng

AU - Sun, Luchao

AU - Zhou, Yanchun

PY - 2011/6

Y1 - 2011/6

N2 - Ti-doped Zr2[Al(Si)]4C5 solid solutions were prepared by an in situ hot-pressing method and its effect on the mechanical properties and high-temperature oxidation behavior were investigated. The solid solutions show comparable hardness, strength, and fracture toughness with Zr2[Al(Si)]4C5 except modulus, which decreases with Ti dopant content. The stiffness is maintained up to 1600°C, which derives from the clean grain boundaries without glassy phases. The oxidation resistance of [Zr1-x(Ti)x]2[Al(Si)] 4C5 solid solutions at 1000°-1300°C is improved remarkably. The improved oxidation resistance is mostly due to the formation of a more protective oxide scale consisting of (Zr,Ti)O2, Al 2O3, and mullite.

AB - Ti-doped Zr2[Al(Si)]4C5 solid solutions were prepared by an in situ hot-pressing method and its effect on the mechanical properties and high-temperature oxidation behavior were investigated. The solid solutions show comparable hardness, strength, and fracture toughness with Zr2[Al(Si)]4C5 except modulus, which decreases with Ti dopant content. The stiffness is maintained up to 1600°C, which derives from the clean grain boundaries without glassy phases. The oxidation resistance of [Zr1-x(Ti)x]2[Al(Si)] 4C5 solid solutions at 1000°-1300°C is improved remarkably. The improved oxidation resistance is mostly due to the formation of a more protective oxide scale consisting of (Zr,Ti)O2, Al 2O3, and mullite.

UR - https://www.scopus.com/pages/publications/79958145065

U2 - 10.1111/j.1551-2916.2010.04300.x

DO - 10.1111/j.1551-2916.2010.04300.x

M3 - Article

AN - SCOPUS:79958145065

SN - 0002-7820

VL - 94

SP - 1872

EP - 1877

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 6

ER -

Effect of Ti dopant on the mechanical properties and oxidation behavior of Zr₂[Al(Si)]₄C₅ ceramics

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