The effect of aluminum oxide (Al2O3) and cerium oxide (CeO2) on the structural and mechanical properties of yttria Tetragonal Zirconia Polycrystal (Y-TZP)

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Abstract

The effect of additions of Al2O3 and CeO2 (up to 1 wt %) on the sintering behavior of yttria-stabilized Tetragonal Zirconia Polycrystals (Y-TZP) were studied. The effects of Al2O3 and CeO2 on the Vickers hardness, bulk density, fracture toughness and Young's modulus were carried out on the sintered samples. The sintering temperature was ranging from 1250°C to 1450°C with the ramp rate of 10°C/min. The results revealed that the doped samples demonstrated a stronger effect in contrast with the undoped samples. The relative densities were above 97.5 % of theoretical (i.e. > 6.1 gcm-3) could be obtained in Y-TZPs sintered at low temperatures, 1350°C. The hardness's value of Y-TZP was increased in the 1 wt % Al2O3 and CeO2 -doped samples when sintered above 1400°C.

Original languageEnglish
Pages (from-to)16-21
Number of pages6
JournalJournal of the Australian Ceramic Society
Volume51
Issue number1
Publication statusPublished - 01 Jan 2015

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Yttrium oxide
Aluminum Oxide
Polycrystals
Cerium
Zirconia
Structural properties
Sintering
Aluminum
Mechanical properties
Oxides
Vickers hardness
Yttria stabilized zirconia
Fracture toughness
Elastic moduli
Hardness
Temperature
zirconium oxide
ceric oxide
yttria
yttria stabilized tetragonal zirconia

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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title = "The effect of aluminum oxide (Al2O3) and cerium oxide (CeO2) on the structural and mechanical properties of yttria Tetragonal Zirconia Polycrystal (Y-TZP)",
abstract = "The effect of additions of Al2O3 and CeO2 (up to 1 wt {\%}) on the sintering behavior of yttria-stabilized Tetragonal Zirconia Polycrystals (Y-TZP) were studied. The effects of Al2O3 and CeO2 on the Vickers hardness, bulk density, fracture toughness and Young's modulus were carried out on the sintered samples. The sintering temperature was ranging from 1250°C to 1450°C with the ramp rate of 10°C/min. The results revealed that the doped samples demonstrated a stronger effect in contrast with the undoped samples. The relative densities were above 97.5 {\%} of theoretical (i.e. > 6.1 gcm-3) could be obtained in Y-TZPs sintered at low temperatures, 1350°C. The hardness's value of Y-TZP was increased in the 1 wt {\%} Al2O3 and CeO2 -doped samples when sintered above 1400°C.",
author = "M. Golieskardi and Meenaloshini Satgunam and D. Ragurajan and {Mohamed Nainar}, {Mohamed Ansari}",
year = "2015",
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TY - JOUR

T1 - The effect of aluminum oxide (Al2O3) and cerium oxide (CeO2) on the structural and mechanical properties of yttria Tetragonal Zirconia Polycrystal (Y-TZP)

AU - Golieskardi, M.

AU - Satgunam, Meenaloshini

AU - Ragurajan, D.

AU - Mohamed Nainar, Mohamed Ansari

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The effect of additions of Al2O3 and CeO2 (up to 1 wt %) on the sintering behavior of yttria-stabilized Tetragonal Zirconia Polycrystals (Y-TZP) were studied. The effects of Al2O3 and CeO2 on the Vickers hardness, bulk density, fracture toughness and Young's modulus were carried out on the sintered samples. The sintering temperature was ranging from 1250°C to 1450°C with the ramp rate of 10°C/min. The results revealed that the doped samples demonstrated a stronger effect in contrast with the undoped samples. The relative densities were above 97.5 % of theoretical (i.e. > 6.1 gcm-3) could be obtained in Y-TZPs sintered at low temperatures, 1350°C. The hardness's value of Y-TZP was increased in the 1 wt % Al2O3 and CeO2 -doped samples when sintered above 1400°C.

AB - The effect of additions of Al2O3 and CeO2 (up to 1 wt %) on the sintering behavior of yttria-stabilized Tetragonal Zirconia Polycrystals (Y-TZP) were studied. The effects of Al2O3 and CeO2 on the Vickers hardness, bulk density, fracture toughness and Young's modulus were carried out on the sintered samples. The sintering temperature was ranging from 1250°C to 1450°C with the ramp rate of 10°C/min. The results revealed that the doped samples demonstrated a stronger effect in contrast with the undoped samples. The relative densities were above 97.5 % of theoretical (i.e. > 6.1 gcm-3) could be obtained in Y-TZPs sintered at low temperatures, 1350°C. The hardness's value of Y-TZP was increased in the 1 wt % Al2O3 and CeO2 -doped samples when sintered above 1400°C.

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