Effect of sintering atmosphere on the microstructure of hot-pressed Al 2O3/Cu nanocomposites

Sung Tag Oh; Kae Myung Kang

Effect of sintering atmosphere on the microstructure of hot-pressed Al ₂O₃/Cu nanocomposites

Sung Tag Oh, Kae Myung Kang

Dept. of Materials Science & Engineering

Seoul National University of Science and Technology (SNUST)

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

3 Scopus citations

Abstract

Microstructure of hot-pressed Al₂O₃/Cu composites with a different temperature for atmosphere switching from H₂ to Ar has been studied. When the composite atmosphere was switched at 1100°C it lead to a more homogeneous microstructure and the highest fracture strength with smaller deviation than when the atmosphere was switched at 1450°C. The strong sensitivity to atmosphere, especially the oxygen content in the atmosphere, was found to be responsible for observed changes, based upon the interfacial phenomena related to the formation of CuAlO₂.

Original language	English
Pages (from-to)	1217-1220
Number of pages	4
Journal	Materials Science Forum
Volume	449-452
Issue number	II
State	Published - 2004
Event	Designing, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials - Jeju Island, Korea, Republic of Duration: 5 Nov 2003 → 8 Nov 2003

Keywords

Fracture strength
Microstructure
Nanocomposites
Sintering atmosphere

Cite this

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title = "Effect of sintering atmosphere on the microstructure of hot-pressed Al 2O3/Cu nanocomposites",

abstract = "Microstructure of hot-pressed Al2O3/Cu composites with a different temperature for atmosphere switching from H2 to Ar has been studied. When the composite atmosphere was switched at 1100°C it lead to a more homogeneous microstructure and the highest fracture strength with smaller deviation than when the atmosphere was switched at 1450°C. The strong sensitivity to atmosphere, especially the oxygen content in the atmosphere, was found to be responsible for observed changes, based upon the interfacial phenomena related to the formation of CuAlO2.",

keywords = "Fracture strength, Microstructure, Nanocomposites, Sintering atmosphere",

author = "Oh, \{Sung Tag\} and Kang, \{Kae Myung\}",

year = "2004",

language = "English",

volume = "449-452",

pages = "1217--1220",

journal = "Materials Science Forum",

issn = "0255-5476",

number = "II",

note = "Designing, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials ; Conference date: 05-11-2003 Through 08-11-2003",

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TY - JOUR

T1 - Effect of sintering atmosphere on the microstructure of hot-pressed Al 2O3/Cu nanocomposites

AU - Oh, Sung Tag

AU - Kang, Kae Myung

PY - 2004

Y1 - 2004

N2 - Microstructure of hot-pressed Al2O3/Cu composites with a different temperature for atmosphere switching from H2 to Ar has been studied. When the composite atmosphere was switched at 1100°C it lead to a more homogeneous microstructure and the highest fracture strength with smaller deviation than when the atmosphere was switched at 1450°C. The strong sensitivity to atmosphere, especially the oxygen content in the atmosphere, was found to be responsible for observed changes, based upon the interfacial phenomena related to the formation of CuAlO2.

AB - Microstructure of hot-pressed Al2O3/Cu composites with a different temperature for atmosphere switching from H2 to Ar has been studied. When the composite atmosphere was switched at 1100°C it lead to a more homogeneous microstructure and the highest fracture strength with smaller deviation than when the atmosphere was switched at 1450°C. The strong sensitivity to atmosphere, especially the oxygen content in the atmosphere, was found to be responsible for observed changes, based upon the interfacial phenomena related to the formation of CuAlO2.

KW - Fracture strength

KW - Microstructure

KW - Nanocomposites

KW - Sintering atmosphere

UR - https://www.scopus.com/pages/publications/18544400620

M3 - Conference article

AN - SCOPUS:18544400620

SN - 0255-5476

VL - 449-452

SP - 1217

EP - 1220

JO - Materials Science Forum

JF - Materials Science Forum

IS - II

T2 - Designing, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials

Y2 - 5 November 2003 through 8 November 2003

ER -

Effect of sintering atmosphere on the microstructure of hot-pressed Al ₂O₃/Cu nanocomposites

Abstract

Keywords

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