Effect of Loading Speed on Fracture Behaviour of ZrO2(Al2O3) Matrix Composites Reinforced with SiC Whiskers

F. Ye; T. C. Lei; Y. C. Zhao; Y. Zhou; J. M. Yang; L. T. Zhang

doi:10.1016/S0272-8842(96)00089-2

Effect of Loading Speed on Fracture Behaviour of ZrO₂(Al₂O₃) Matrix Composites Reinforced with SiC Whiskers

F. Ye, T. C. Lei, Y. C. Zhao, Y. Zhou, J. M. Yang, L. T. Zhang

School of Materials Sience and Engineering

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

2 Scopus citations

Abstract

The fracture toughnesses, fracture behaviour and toughening mechanisms of 20vol% SiCw-ZrO₂ (2mol% Y₂O₃), 20vol% SiCw-ZrO₂ (6 mol% Y₂O₃), 20% SiCw-Al₂O₃ and 20vol% SiCw-20vol% ZrO₂ (2mol% Y₂O₃) -Al₂O₃ composites (SiCw means SiC whisker) were investigated by three-point bending tests, XRD and scanning electron microscopy techniques. The results show that the fracture toughnesses of the composite materials increase with increasing loading speed because of the increase in the amount of dynamic t→m ZrO₂ transformation and whisker pullout effect. Whisker/matrix characteristis have a significant influence on the effect of loading speed on the fracture behaviour.

Original language	English
Pages (from-to)	181-188
Number of pages	8
Journal	Ceramics International
Volume	24
Issue number	3
DOIs	https://doi.org/10.1016/S0272-8842(96)00089-2
State	Published - May 1998

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title = "Effect of Loading Speed on Fracture Behaviour of ZrO2(Al2O3) Matrix Composites Reinforced with SiC Whiskers",

abstract = "The fracture toughnesses, fracture behaviour and toughening mechanisms of 20vol% SiCw-ZrO2 (2mol% Y2O3), 20vol% SiCw-ZrO2 (6 mol% Y2O3), 20% SiCw-Al2O3 and 20vol% SiCw-20vol% ZrO2 (2mol% Y2O3) -Al2O3 composites (SiCw means SiC whisker) were investigated by three-point bending tests, XRD and scanning electron microscopy techniques. The results show that the fracture toughnesses of the composite materials increase with increasing loading speed because of the increase in the amount of dynamic t→m ZrO2 transformation and whisker pullout effect. Whisker/matrix characteristis have a significant influence on the effect of loading speed on the fracture behaviour.",

author = "F. Ye and Lei, {T. C.} and Zhao, {Y. C.} and Y. Zhou and Yang, {J. M.} and Zhang, {L. T.}",

year = "1998",

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doi = "10.1016/S0272-8842(96)00089-2",

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T1 - Effect of Loading Speed on Fracture Behaviour of ZrO2(Al2O3) Matrix Composites Reinforced with SiC Whiskers

AU - Ye, F.

AU - Lei, T. C.

AU - Zhao, Y. C.

AU - Zhou, Y.

AU - Yang, J. M.

AU - Zhang, L. T.

PY - 1998/5

Y1 - 1998/5

N2 - The fracture toughnesses, fracture behaviour and toughening mechanisms of 20vol% SiCw-ZrO2 (2mol% Y2O3), 20vol% SiCw-ZrO2 (6 mol% Y2O3), 20% SiCw-Al2O3 and 20vol% SiCw-20vol% ZrO2 (2mol% Y2O3) -Al2O3 composites (SiCw means SiC whisker) were investigated by three-point bending tests, XRD and scanning electron microscopy techniques. The results show that the fracture toughnesses of the composite materials increase with increasing loading speed because of the increase in the amount of dynamic t→m ZrO2 transformation and whisker pullout effect. Whisker/matrix characteristis have a significant influence on the effect of loading speed on the fracture behaviour.

AB - The fracture toughnesses, fracture behaviour and toughening mechanisms of 20vol% SiCw-ZrO2 (2mol% Y2O3), 20vol% SiCw-ZrO2 (6 mol% Y2O3), 20% SiCw-Al2O3 and 20vol% SiCw-20vol% ZrO2 (2mol% Y2O3) -Al2O3 composites (SiCw means SiC whisker) were investigated by three-point bending tests, XRD and scanning electron microscopy techniques. The results show that the fracture toughnesses of the composite materials increase with increasing loading speed because of the increase in the amount of dynamic t→m ZrO2 transformation and whisker pullout effect. Whisker/matrix characteristis have a significant influence on the effect of loading speed on the fracture behaviour.

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Effect of Loading Speed on Fracture Behaviour of ZrO₂(Al₂O₃) Matrix Composites Reinforced with SiC Whiskers

Abstract

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