Microstructure and mechanical properties of quasi-eutectic Al2O3-Y3Al5O12 -ZrO2 ternary composites rapidly solidified from melt

Jose M. Calderon-Moreno; Masahiro Yoshimura

doi:10.1016/j.msea.2003.10.078

Microstructure and mechanical properties of quasi-eutectic Al₂O₃-Y₃Al₅O₁₂ -ZrO₂ ternary composites rapidly solidified from melt

Jose M. Calderon-Moreno, Masahiro Yoshimura

Department of Materials Science and Engineering

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

26 Citations (Scopus)

Abstract

The formation, microstructure and mechanical properties of Al₂ O₃-Y₃Al₅O₁₂ -ZrO₂ composites rapidly solidified from melts is presented. The studied compositions were inside the eutectic line between the Al₂O₃-Y₃Al₅ O₁₂ binary eutectic and the ternary eutectic, inside the Al₂O₃-Y₃Al₅O₁₂ -ZrO₂ region of the Al₂O₃-Y₂ O₃-ZrO₂ ternary oxide diagram. Composites showing an homogeneous structure and phase distribution could be obtained in spite of the high thermal residual stresses generated upon cooling. The three-phase composites obtained by melt quenching have interphase spacings in the sub-micron range, due to the rapid growth during quenching. The fracture toughness of the ternary composites was measured by Vickers indentation methods.

Original language	English
Pages (from-to)	1246-1249
Number of pages	4
Journal	Materials Science and Engineering: A
Volume	375-377
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.msea.2003.10.078
Publication status	Published - 2004 Jul 15

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2003.10.078

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abstract = "The formation, microstructure and mechanical properties of Al2 O3-Y3Al5O12 -ZrO2 composites rapidly solidified from melts is presented. The studied compositions were inside the eutectic line between the Al2O3-Y3Al5 O12 binary eutectic and the ternary eutectic, inside the Al2O3-Y3Al5O12 -ZrO2 region of the Al2O3-Y2 O3-ZrO2 ternary oxide diagram. Composites showing an homogeneous structure and phase distribution could be obtained in spite of the high thermal residual stresses generated upon cooling. The three-phase composites obtained by melt quenching have interphase spacings in the sub-micron range, due to the rapid growth during quenching. The fracture toughness of the ternary composites was measured by Vickers indentation methods.",

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N2 - The formation, microstructure and mechanical properties of Al2 O3-Y3Al5O12 -ZrO2 composites rapidly solidified from melts is presented. The studied compositions were inside the eutectic line between the Al2O3-Y3Al5 O12 binary eutectic and the ternary eutectic, inside the Al2O3-Y3Al5O12 -ZrO2 region of the Al2O3-Y2 O3-ZrO2 ternary oxide diagram. Composites showing an homogeneous structure and phase distribution could be obtained in spite of the high thermal residual stresses generated upon cooling. The three-phase composites obtained by melt quenching have interphase spacings in the sub-micron range, due to the rapid growth during quenching. The fracture toughness of the ternary composites was measured by Vickers indentation methods.

AB - The formation, microstructure and mechanical properties of Al2 O3-Y3Al5O12 -ZrO2 composites rapidly solidified from melts is presented. The studied compositions were inside the eutectic line between the Al2O3-Y3Al5 O12 binary eutectic and the ternary eutectic, inside the Al2O3-Y3Al5O12 -ZrO2 region of the Al2O3-Y2 O3-ZrO2 ternary oxide diagram. Composites showing an homogeneous structure and phase distribution could be obtained in spite of the high thermal residual stresses generated upon cooling. The three-phase composites obtained by melt quenching have interphase spacings in the sub-micron range, due to the rapid growth during quenching. The fracture toughness of the ternary composites was measured by Vickers indentation methods.

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Microstructure and mechanical properties of quasi-eutectic Al₂O₃-Y₃Al₅O₁₂ -ZrO₂ ternary composites rapidly solidified from melt

Abstract

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