Fabrication and Mechanical Properties of Al2O3 Reinforced NiAl Composites

Chii Shyang Hwang; Dong Lin Coo

Fabrication and Mechanical Properties of Al₂O₃ Reinforced NiAl Composites

Chii Shyang Hwang, Dong Lin Coo

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

Abstract

Al₂O₃ reinforced NiAl composites can show better mechanical properties than monolithic NiAl. For enhancing the properties of NiAl/Al₂O₃ composites NiAl powders were oxidized and/or ball milled to form Al₂O₃ into NiAl matrix. The as-received and oxidized/ball milled NiAl powders were studied to determine the effects of oxidation and ball milling. Al₂O₃ particles are dispersed in the grain boundaries and within the NiAl grains of hot-pressed NiAl/A₂O₃ composites. As the milling time and the oxidation temperature of NiAl powder increased, α- Al₂O ₃ contents increase, and fracture mode of the composite transforms from intergranular to transgranular cleavage which accounts for the enhancement of mechanical properties of NiAl/Al₂O₃ composites.

Original language	English
Pages (from-to)	223-226
Number of pages	4
Journal	Key Engineering Materials
Volume	249
Publication status	Published - 2003 Jan 1
Event	Composite Materials III: Proceedings of the 3rd China Cross-Strait Conference on Composite Materials - Wuhan, China Duration: 2003 May 7 → 2003 May 12

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Cite this

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title = "Fabrication and Mechanical Properties of Al2O3 Reinforced NiAl Composites",

abstract = "Al2O3 reinforced NiAl composites can show better mechanical properties than monolithic NiAl. For enhancing the properties of NiAl/Al2O3 composites NiAl powders were oxidized and/or ball milled to form Al2O3 into NiAl matrix. The as-received and oxidized/ball milled NiAl powders were studied to determine the effects of oxidation and ball milling. Al2O3 particles are dispersed in the grain boundaries and within the NiAl grains of hot-pressed NiAl/A2O3 composites. As the milling time and the oxidation temperature of NiAl powder increased, α- Al2O 3 contents increase, and fracture mode of the composite transforms from intergranular to transgranular cleavage which accounts for the enhancement of mechanical properties of NiAl/Al2O3 composites.",

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year = "2003",

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journal = "Key Engineering Materials",

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publisher = "Trans Tech Publications",

note = "Composite Materials III: Proceedings of the 3rd China Cross-Strait Conference on Composite Materials ; Conference date: 07-05-2003 Through 12-05-2003",

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TY - JOUR

T1 - Fabrication and Mechanical Properties of Al2O3 Reinforced NiAl Composites

AU - Hwang, Chii Shyang

AU - Coo, Dong Lin

PY - 2003/1/1

Y1 - 2003/1/1

N2 - Al2O3 reinforced NiAl composites can show better mechanical properties than monolithic NiAl. For enhancing the properties of NiAl/Al2O3 composites NiAl powders were oxidized and/or ball milled to form Al2O3 into NiAl matrix. The as-received and oxidized/ball milled NiAl powders were studied to determine the effects of oxidation and ball milling. Al2O3 particles are dispersed in the grain boundaries and within the NiAl grains of hot-pressed NiAl/A2O3 composites. As the milling time and the oxidation temperature of NiAl powder increased, α- Al2O 3 contents increase, and fracture mode of the composite transforms from intergranular to transgranular cleavage which accounts for the enhancement of mechanical properties of NiAl/Al2O3 composites.

AB - Al2O3 reinforced NiAl composites can show better mechanical properties than monolithic NiAl. For enhancing the properties of NiAl/Al2O3 composites NiAl powders were oxidized and/or ball milled to form Al2O3 into NiAl matrix. The as-received and oxidized/ball milled NiAl powders were studied to determine the effects of oxidation and ball milling. Al2O3 particles are dispersed in the grain boundaries and within the NiAl grains of hot-pressed NiAl/A2O3 composites. As the milling time and the oxidation temperature of NiAl powder increased, α- Al2O 3 contents increase, and fracture mode of the composite transforms from intergranular to transgranular cleavage which accounts for the enhancement of mechanical properties of NiAl/Al2O3 composites.

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T2 - Composite Materials III: Proceedings of the 3rd China Cross-Strait Conference on Composite Materials

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ER -

Fabrication and Mechanical Properties of Al₂O₃ Reinforced NiAl Composites

Abstract

All Science Journal Classification (ASJC) codes

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