Synthesis of Ni3Al intermetallic powder in eutectic molten salts

Hyun Suk Choo; Kwan Young Lee; Yun Sung Kim; Jung Ho Wee

doi:10.1016/j.intermet.2004.07.042

Synthesis of Ni₃Al intermetallic powder in eutectic molten salts

Hyun Suk Choo, Kwan Young Lee, Yun Sung Kim, Jung Ho Wee

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

9 Citations (Scopus)

Abstract

The powders of Ni₃Al intermetallic compounds were simply and economically synthesized by the chemical reaction in the various molten salts systems. In the relatively low temperature ranges, we studied to synthesize Ni₃Al intermetallic powders from Al and NiCl₂ in five kinds of eutectic molten salts by varying the reaction time and mole ratio of reactants. Ni₃Al intermetallic powders could be synthesized in AlCl₃-NaCl (63:37 in mol%), AlCl₃-NaCl-KCl (66:20:14 mol%), NaCl-KCl (50:50 mol%) and MgCl₂-NaCl-KCl (50:30:20 mol%) systems. However, it was impossible to separate the Ni₃Al powders from MgCl₂-NaCl-KCl (50:30:20 mol%) system. The Ni₃Al powders could not be synthesized in AlCl₃-NaCl (50:50 mol%) molten salt. The obtained powders were uniformly sub-micrometer sized. The reaction temperature at 500°C, the reaction time for 3 h and the mole ratio of NiCl₂/Al = 1.3 were the optimum conditions for synthesis of Ni ₃Al intermetallic powders in AlCl₃-NaCl (63:37 mol%) molten salt.

Original language	English
Pages (from-to)	157-162
Number of pages	6
Journal	Intermetallics
Volume	13
Issue number	2
DOIs	https://doi.org/10.1016/j.intermet.2004.07.042
Publication status	Published - 2005 Feb

Bibliographical note

Funding Information:
This work was supported by grants from Korea University.

Keywords

A. Nickel aluminides, based on NiAl
A. Nickel aluminides, based on NiAl
C. Powder metallurgy
C. Reaction synthesis
F. Diffraction

ASJC Scopus subject areas

General Chemistry
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.intermet.2004.07.042

Cite this

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title = "Synthesis of Ni3Al intermetallic powder in eutectic molten salts",

abstract = "The powders of Ni3Al intermetallic compounds were simply and economically synthesized by the chemical reaction in the various molten salts systems. In the relatively low temperature ranges, we studied to synthesize Ni3Al intermetallic powders from Al and NiCl2 in five kinds of eutectic molten salts by varying the reaction time and mole ratio of reactants. Ni3Al intermetallic powders could be synthesized in AlCl3-NaCl (63:37 in mol%), AlCl3-NaCl-KCl (66:20:14 mol%), NaCl-KCl (50:50 mol%) and MgCl2-NaCl-KCl (50:30:20 mol%) systems. However, it was impossible to separate the Ni3Al powders from MgCl2-NaCl-KCl (50:30:20 mol%) system. The Ni3Al powders could not be synthesized in AlCl3-NaCl (50:50 mol%) molten salt. The obtained powders were uniformly sub-micrometer sized. The reaction temperature at 500°C, the reaction time for 3 h and the mole ratio of NiCl2/Al = 1.3 were the optimum conditions for synthesis of Ni 3Al intermetallic powders in AlCl3-NaCl (63:37 mol%) molten salt.",

keywords = "A. Nickel aluminides, based on NiAl, A. Nickel aluminides, based on NiAl, C. Powder metallurgy, C. Reaction synthesis, F. Diffraction",

author = "Choo, {Hyun Suk} and Lee, {Kwan Young} and Kim, {Yun Sung} and Wee, {Jung Ho}",

note = "Funding Information: This work was supported by grants from Korea University.",

year = "2005",

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doi = "10.1016/j.intermet.2004.07.042",

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T1 - Synthesis of Ni3Al intermetallic powder in eutectic molten salts

AU - Choo, Hyun Suk

AU - Lee, Kwan Young

AU - Kim, Yun Sung

AU - Wee, Jung Ho

N1 - Funding Information: This work was supported by grants from Korea University.

PY - 2005/2

Y1 - 2005/2

N2 - The powders of Ni3Al intermetallic compounds were simply and economically synthesized by the chemical reaction in the various molten salts systems. In the relatively low temperature ranges, we studied to synthesize Ni3Al intermetallic powders from Al and NiCl2 in five kinds of eutectic molten salts by varying the reaction time and mole ratio of reactants. Ni3Al intermetallic powders could be synthesized in AlCl3-NaCl (63:37 in mol%), AlCl3-NaCl-KCl (66:20:14 mol%), NaCl-KCl (50:50 mol%) and MgCl2-NaCl-KCl (50:30:20 mol%) systems. However, it was impossible to separate the Ni3Al powders from MgCl2-NaCl-KCl (50:30:20 mol%) system. The Ni3Al powders could not be synthesized in AlCl3-NaCl (50:50 mol%) molten salt. The obtained powders were uniformly sub-micrometer sized. The reaction temperature at 500°C, the reaction time for 3 h and the mole ratio of NiCl2/Al = 1.3 were the optimum conditions for synthesis of Ni 3Al intermetallic powders in AlCl3-NaCl (63:37 mol%) molten salt.

AB - The powders of Ni3Al intermetallic compounds were simply and economically synthesized by the chemical reaction in the various molten salts systems. In the relatively low temperature ranges, we studied to synthesize Ni3Al intermetallic powders from Al and NiCl2 in five kinds of eutectic molten salts by varying the reaction time and mole ratio of reactants. Ni3Al intermetallic powders could be synthesized in AlCl3-NaCl (63:37 in mol%), AlCl3-NaCl-KCl (66:20:14 mol%), NaCl-KCl (50:50 mol%) and MgCl2-NaCl-KCl (50:30:20 mol%) systems. However, it was impossible to separate the Ni3Al powders from MgCl2-NaCl-KCl (50:30:20 mol%) system. The Ni3Al powders could not be synthesized in AlCl3-NaCl (50:50 mol%) molten salt. The obtained powders were uniformly sub-micrometer sized. The reaction temperature at 500°C, the reaction time for 3 h and the mole ratio of NiCl2/Al = 1.3 were the optimum conditions for synthesis of Ni 3Al intermetallic powders in AlCl3-NaCl (63:37 mol%) molten salt.

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