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Gas Pressure Infiltration of Porous Ni-Al2O3-Al Compacts with Molten Aluminium

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Abstract:

This paper presents a method for fabricating a porous Ni-Al2O3-Al compact using uniaxial double-action pressing, which was subsequently infiltrated with molten aluminium. Al2O3 ceramic particles primarily serve to create porosity within the composite compact. Due to the difficulty pressing hard metal powders, aluminium powder was introduced into the Ni+Al2O3 mixture to act as a plasticizer, improving the material's compressibility. Experiments indicated that the optimal infiltration temperature was 750 °C with an infiltration duration of 300 seconds. To evaluate the reaction extent among the initial components, a subset of infiltrated samples underwent annealing at 800 °C for 3 hours under an inert argon atmosphere. Both annealed and reference samples were subjected to thermal cycling. The microstructure and thermal stability of the resulting composite materials were analyzed and characterized using scanning electron microscopy with energy-dispersive spectroscopy, respectively.

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Periodical:

Materials Science Forum (Volume 1179)

Pages:

35-41

DOI:

https://doi.org/10.4028/p-E6D3ot

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Online since:

March 2026

Authors:

Andrej Opálek*, Stanislav Kúdela Jr., Matej Štepánek, Naďa Beronská, Karol Iždinský

Keywords:

Gas Pressure Infiltration, Microstructure, Nickel Aluminides, Thermocycling, Uniaxial Pressing

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] S. Sampath, V.P. Ravi, S. Sundararajan. An overview on synthesis, processing and application of nickel aluminides: from fundamentals to current prospects. Crystals, 13 (2023), 435.

DOI: 10.3390/cryst13030435

Google Scholar

[2] Ş. Talaş. 3-Nickel aluminides, in: R. Mitra (Ed.), Intermetallic Matrix Composites, Elsevier Ltd. Amsterdam, The Netherlands, 2018, pp.37-69.

DOI: 10.1016/b978-0-85709-346-2.00003-0

Google Scholar

[3] Q. Xu, B. Gabbitas, S. Matthews, D. Zhang. The effect of binder and plasticizer on porous titanium compacts prepared by slip casting. Proc. Mat. Sci., 4 (2014) 81-84.

DOI: 10.1016/j.mspro.2014.07.601

Google Scholar

[4] Y. Thomas, V. Paris, S. St-Laurent, U.S. Patent 2015/0068361 A1. (2015)

Google Scholar

[5] S. Russo, L. Brambilla, J.B. Thomas, E. Joseph. But aren´t soaps metal soaps? A review of applications, physico-chemical properties of metal soap and their occurrence in cultural heritage studies. Herit. Sci., 11 (2023) 172.

DOI: 10.1186/s40494-023-00988-3

Google Scholar

[6] A. Opálek, S. Kúdela, M. Nosko, K. Iždinský, P. Štefánik, F. Simančík. Forming of intermetallic phases during infiltration of nickel rods and powders with molten aluminium. Acta Metall. Slovaca Conf., 3 (2013) 247-252.

DOI: 10.12776/amsc.v3i0.135

Google Scholar

[7] M. Konieczny, R. Mola, P. Thomas, M. Kopcial. Procesing, microstructure and properties of laminated Ni-intermetallic composites synthesised using Ni sheets and Al foils. Arch. Metallurg. Mat., 56 (2011) 693-702.

DOI: 10.2478/v10172-011-0076-y

Google Scholar

[8] J. Angenete, K. Stiller. Comparison of inward and outward grown Pt modified aluminide diffusion coatings on a Ni based single crystal superalloy. Surf. Coat. Tech., 15 (2002) 107-118.

DOI: 10.1016/s0257-8972(01)01544-4

Google Scholar