Simultaneous synthesis and densification of NiAl and Ni3Al by pressure-assisted combustion

Simultaneous synthesis and densification of NiAl and Ni3Al from elemental powders of Ni and Al was investigated. Combustion synthesis was carried out under the uniaxial compressive pressure and preheating of die. It was shown that both the compressive pressure and preheating of die strongly affect t...

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Published inJournal of materials science Vol. 37; no. 12; pp. 2435 - 2439
Main Authors LEE, Jong-Hyeon, JUNG, Joong-Chai, WON, Chang-Whan, SHON, In-Jin
Format Journal Article
LanguageEnglish
Published Heidelberg Springer 15.06.2002
Springer Nature B.V
Subjects
Aluminum
Applied sciences
Combustion synthesis
Densification
Density
Exact sciences and technology
Grain size
Heating
Intermetallic compounds
Materials science
Metal powders
Metals. Metallurgy
Nickel aluminides
Nickel base alloys
Nickel compounds
Powder metallurgy. Composite materials
Production techniques
Grain size
Nickel base alloys
Densification
Synthesis
Metal powder
Intermetallic compound
Combustion
Aluminium alloy
Hardness
Microstructure
Powder metallurgy
Density
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Summary:Simultaneous synthesis and densification of NiAl and Ni3Al from elemental powders of Ni and Al was investigated. Combustion synthesis was carried out under the uniaxial compressive pressure and preheating of die. It was shown that both the compressive pressure and preheating of die strongly affect the density, the grain size and the hardness of NiAl and Ni3Al product. A high relative density of NiAl and Ni3Al products as much as 99.8% was achieved under compressive pressure of 275 MPa and preheating temperature of 600°C.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1015466901903