Influence of 3Y-TZP on microstructure and mechanical properties of Al 2O3-based composites

Ming Tsung Weng; Wen Cheng J. Wei; Chi Yuen Huang

doi:10.4028/0-87849-456-1.1540

Influence of 3Y-TZP on microstructure and mechanical properties of Al ₂O₃-based composites

Ming Tsung Weng, Wen Cheng J. Wei, Chi Yuen Huang

Department of Resources Engineering

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Al₂O₃ composites with different volume fractions of 3Y-TZP (3 mol% yttria-doped tetragonal zirconia polycrystalline) were prepared by using a colloidal process and pressure-casting into green specimens, then were pressureless sintered to full density at 1550°C. The resulted two-phase microstructure contained uniformly distributed and submicro- meter-sized grains. The addition of 15 vol% ZrO₂ resulted in an increase in bending strength (average 656 MPa by 4 pt. test). Appreciate amount of m-ZrO₂ phase was detected after fracture. The enhanced transformability results in an increase in flexural strength and toughness. The addition of 30 vol% Zro₂ resulted in best toughness (5.4 MPam ^0.5) and outstanding wear resistance (7.2×10^-8 cm³/Nm).

Original language	English
Pages (from-to)	1540-1543
Number of pages	4
Journal	Key Engineering Materials
Volume	353-358
Issue number	PART 3
DOIs	https://doi.org/10.4028/0-87849-456-1.1540
Publication status	Published - 2007
Event	Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: 2006 Nov 22 → 2006 Nov 25

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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title = "Influence of 3Y-TZP on microstructure and mechanical properties of Al 2O3-based composites",

abstract = "Al2O3 composites with different volume fractions of 3Y-TZP (3 mol% yttria-doped tetragonal zirconia polycrystalline) were prepared by using a colloidal process and pressure-casting into green specimens, then were pressureless sintered to full density at 1550°C. The resulted two-phase microstructure contained uniformly distributed and submicro- meter-sized grains. The addition of 15 vol% ZrO2 resulted in an increase in bending strength (average 656 MPa by 4 pt. test). Appreciate amount of m-ZrO2 phase was detected after fracture. The enhanced transformability results in an increase in flexural strength and toughness. The addition of 30 vol% Zro2 resulted in best toughness (5.4 MPam 0.5) and outstanding wear resistance (7.2×10-8 cm3/Nm).",

author = "Weng, {Ming Tsung} and Wei, {Wen Cheng J.} and Huang, {Chi Yuen}",

year = "2007",

doi = "10.4028/0-87849-456-1.1540",

language = "English",

volume = "353-358",

pages = "1540--1543",

journal = "Key Engineering Materials",

issn = "1013-9826",

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number = "PART 3",

note = "Asian Pacific Conference for Fracture and Strength (APCFS'06) ; Conference date: 22-11-2006 Through 25-11-2006",

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T1 - Influence of 3Y-TZP on microstructure and mechanical properties of Al 2O3-based composites

AU - Weng, Ming Tsung

AU - Wei, Wen Cheng J.

AU - Huang, Chi Yuen

PY - 2007

Y1 - 2007

N2 - Al2O3 composites with different volume fractions of 3Y-TZP (3 mol% yttria-doped tetragonal zirconia polycrystalline) were prepared by using a colloidal process and pressure-casting into green specimens, then were pressureless sintered to full density at 1550°C. The resulted two-phase microstructure contained uniformly distributed and submicro- meter-sized grains. The addition of 15 vol% ZrO2 resulted in an increase in bending strength (average 656 MPa by 4 pt. test). Appreciate amount of m-ZrO2 phase was detected after fracture. The enhanced transformability results in an increase in flexural strength and toughness. The addition of 30 vol% Zro2 resulted in best toughness (5.4 MPam 0.5) and outstanding wear resistance (7.2×10-8 cm3/Nm).

AB - Al2O3 composites with different volume fractions of 3Y-TZP (3 mol% yttria-doped tetragonal zirconia polycrystalline) were prepared by using a colloidal process and pressure-casting into green specimens, then were pressureless sintered to full density at 1550°C. The resulted two-phase microstructure contained uniformly distributed and submicro- meter-sized grains. The addition of 15 vol% ZrO2 resulted in an increase in bending strength (average 656 MPa by 4 pt. test). Appreciate amount of m-ZrO2 phase was detected after fracture. The enhanced transformability results in an increase in flexural strength and toughness. The addition of 30 vol% Zro2 resulted in best toughness (5.4 MPam 0.5) and outstanding wear resistance (7.2×10-8 cm3/Nm).

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SN - 1013-9826

VL - 353-358

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ER -

Influence of 3Y-TZP on microstructure and mechanical properties of Al ₂O₃-based composites

Abstract

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