Mechanical properties of Al2O3 particle-Y-TZP matrix composite and its toughening mechanism

J. L. Shi; B. S. Li; T. S. Yen

doi:10.1007/BF00351224

Mechanical properties of Al₂O₃ particle-Y-TZP matrix composite and its toughening mechanism

J. L. Shi^*
, B. S. Li
, T. S. Yen

^*Corresponding author for this work

CAS - Shanghai Institute of Ceramics

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

38 Scopus citations

Abstract

Dense Al₂O₃ particle-Y-TZP matrix (Al₂O₃<40 vol%) composite was prepared by pressureless sintering at 1550°C. Composites with 10-30 vol% Al₂O₃ particles showed enhanced fracture toughness, bending strength and Vicker's hardness as compared to single-phase Y-TZP. The highest strength (1150 MPa) and highest toughness (12.4 MPa m^1/2) were obtained for the composite containing 10 vol% Al₂O₃. It was found that, in addition to the contribution by the crack-deflection effect, the enhanced phase transformation from tetragonal to monoclinic during fracture was the main toughening mechanism in operation in the composites.

Original language	English
Pages (from-to)	4019-4022
Number of pages	4
Journal	Journal of Materials Science
Volume	28
Issue number	15
DOIs	https://doi.org/10.1007/BF00351224
State	Published - Jan 1993
Externally published	Yes

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title = "Mechanical properties of Al2O3 particle-Y-TZP matrix composite and its toughening mechanism",

abstract = "Dense Al2O3 particle-Y-TZP matrix (Al2O3<40 vol\%) composite was prepared by pressureless sintering at 1550°C. Composites with 10-30 vol\% Al2O3 particles showed enhanced fracture toughness, bending strength and Vicker's hardness as compared to single-phase Y-TZP. The highest strength (1150 MPa) and highest toughness (12.4 MPa m1/2) were obtained for the composite containing 10 vol\% Al2O3. It was found that, in addition to the contribution by the crack-deflection effect, the enhanced phase transformation from tetragonal to monoclinic during fracture was the main toughening mechanism in operation in the composites.",

author = "Shi, \{J. L.\} and Li, \{B. S.\} and Yen, \{T. S.\}",

year = "1993",

month = jan,

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T1 - Mechanical properties of Al2O3 particle-Y-TZP matrix composite and its toughening mechanism

AU - Shi, J. L.

AU - Li, B. S.

AU - Yen, T. S.

PY - 1993/1

Y1 - 1993/1

N2 - Dense Al2O3 particle-Y-TZP matrix (Al2O3<40 vol%) composite was prepared by pressureless sintering at 1550°C. Composites with 10-30 vol% Al2O3 particles showed enhanced fracture toughness, bending strength and Vicker's hardness as compared to single-phase Y-TZP. The highest strength (1150 MPa) and highest toughness (12.4 MPa m1/2) were obtained for the composite containing 10 vol% Al2O3. It was found that, in addition to the contribution by the crack-deflection effect, the enhanced phase transformation from tetragonal to monoclinic during fracture was the main toughening mechanism in operation in the composites.

AB - Dense Al2O3 particle-Y-TZP matrix (Al2O3<40 vol%) composite was prepared by pressureless sintering at 1550°C. Composites with 10-30 vol% Al2O3 particles showed enhanced fracture toughness, bending strength and Vicker's hardness as compared to single-phase Y-TZP. The highest strength (1150 MPa) and highest toughness (12.4 MPa m1/2) were obtained for the composite containing 10 vol% Al2O3. It was found that, in addition to the contribution by the crack-deflection effect, the enhanced phase transformation from tetragonal to monoclinic during fracture was the main toughening mechanism in operation in the composites.

UR - https://www.scopus.com/pages/publications/0027642527

U2 - 10.1007/BF00351224

DO - 10.1007/BF00351224

M3 - 文章

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SN - 0022-2461

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SP - 4019

EP - 4022

JO - Journal of Materials Science

JF - Journal of Materials Science

IS - 15

ER -

Mechanical properties of Al₂O₃ particle-Y-TZP matrix composite and its toughening mechanism

Abstract

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