Cyclic Fatigue-Crack Propagation in SiC-Whisker-Reinforced Y-TZP Composites

Guo Dong Zhan; Yi Zeng Zhang; Jian Ling Shi; Tung Sheng Yen

doi:10.1016/s0955-2219(96)00184-7

Cyclic Fatigue-Crack Propagation in SiC-Whisker-Reinforced Y-TZP Composites

Guo Dong Zhan^*
, Yi Zeng Zhang
, Jian Ling Shi
, Tung Sheng Yen

^*Corresponding author for this work

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

3 Scopus citations

Abstract

The ambient-temperature subcritical growth behaviour of SiC-whisker-reinforced yttria-stabilized zirconia (SiCw/3Y-TZP) ceramic composites is investigated during cyclic fatigue loading. Based on long-crack experiments using four-point bending specimens, cyclic fatigue crack growth rates (over the range 10^-10 to 10^-5(m/cycle) ) are found to be sensitive to the maximum stress intensity factor and load ratio. Similar to other ceramic materials, the long crack fatigue threshold, ΔK_TH, is found to be of the order of 45% of K_Ic, and enhanced with increasing fracture toughness. A unique growth law strongly dependent on the K_max and modestly on ΔK is established. Possible mechanisms for cyclic crack growth in whisker-reinforced zirconia composite materials are discussed.

Original language	English
Pages (from-to)	1011-1017
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	17
Issue number	8
DOIs	https://doi.org/10.1016/s0955-2219(96)00184-7
State	Published - Jun 1997
Externally published	Yes

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title = "Cyclic Fatigue-Crack Propagation in SiC-Whisker-Reinforced Y-TZP Composites",

abstract = "The ambient-temperature subcritical growth behaviour of SiC-whisker-reinforced yttria-stabilized zirconia (SiCw/3Y-TZP) ceramic composites is investigated during cyclic fatigue loading. Based on long-crack experiments using four-point bending specimens, cyclic fatigue crack growth rates (over the range 10-10 to 10-5(m/cycle) ) are found to be sensitive to the maximum stress intensity factor and load ratio. Similar to other ceramic materials, the long crack fatigue threshold, ΔKTH, is found to be of the order of 45\% of KIc, and enhanced with increasing fracture toughness. A unique growth law strongly dependent on the Kmax and modestly on ΔK is established. Possible mechanisms for cyclic crack growth in whisker-reinforced zirconia composite materials are discussed.",

author = "Zhan, \{Guo Dong\} and Zhang, \{Yi Zeng\} and Shi, \{Jian Ling\} and Yen, \{Tung Sheng\}",

year = "1997",

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doi = "10.1016/s0955-2219(96)00184-7",

language = "英语",

volume = "17",

pages = "1011--1017",

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TY - JOUR

T1 - Cyclic Fatigue-Crack Propagation in SiC-Whisker-Reinforced Y-TZP Composites

AU - Zhan, Guo Dong

AU - Zhang, Yi Zeng

AU - Shi, Jian Ling

AU - Yen, Tung Sheng

PY - 1997/6

Y1 - 1997/6

N2 - The ambient-temperature subcritical growth behaviour of SiC-whisker-reinforced yttria-stabilized zirconia (SiCw/3Y-TZP) ceramic composites is investigated during cyclic fatigue loading. Based on long-crack experiments using four-point bending specimens, cyclic fatigue crack growth rates (over the range 10-10 to 10-5(m/cycle) ) are found to be sensitive to the maximum stress intensity factor and load ratio. Similar to other ceramic materials, the long crack fatigue threshold, ΔKTH, is found to be of the order of 45% of KIc, and enhanced with increasing fracture toughness. A unique growth law strongly dependent on the Kmax and modestly on ΔK is established. Possible mechanisms for cyclic crack growth in whisker-reinforced zirconia composite materials are discussed.

AB - The ambient-temperature subcritical growth behaviour of SiC-whisker-reinforced yttria-stabilized zirconia (SiCw/3Y-TZP) ceramic composites is investigated during cyclic fatigue loading. Based on long-crack experiments using four-point bending specimens, cyclic fatigue crack growth rates (over the range 10-10 to 10-5(m/cycle) ) are found to be sensitive to the maximum stress intensity factor and load ratio. Similar to other ceramic materials, the long crack fatigue threshold, ΔKTH, is found to be of the order of 45% of KIc, and enhanced with increasing fracture toughness. A unique growth law strongly dependent on the Kmax and modestly on ΔK is established. Possible mechanisms for cyclic crack growth in whisker-reinforced zirconia composite materials are discussed.

UR - https://www.scopus.com/pages/publications/0041597194

U2 - 10.1016/s0955-2219(96)00184-7

DO - 10.1016/s0955-2219(96)00184-7

M3 - 文章

AN - SCOPUS:0041597194

SN - 0955-2219

VL - 17

SP - 1011

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 8

ER -

Cyclic Fatigue-Crack Propagation in SiC-Whisker-Reinforced Y-TZP Composites

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