Comparative Study of Crushing Loads of Porous Aluminium- and Copper-Oxides Synthesized Via Space Holding Sintering

Mohammad Faisal; Mohammod Anwer Jahed; Md. Arafat  Rahman; Shaswato  Barua; Konok Chandra  Bhowmik

doi:10.38032/scse.2026.4.156

Comparative Study of Crushing Loads of Porous Aluminium- and Copper-Oxides Synthesized Via Space Holding Sintering

Authors

Mohammad Faisal Department of Mechanical Engineering, Chittagong University of Engineering & Technology, Chattogram-4349, Bangladesh
Mohammod Anwer Jahed Department of Mechanical Engineering, Chittagong University of Engineering & Technology, Chattogram-4349, Bangladesh
Md. Arafat Rahman Department of Mechanical Engineering, Chittagong University of Engineering & Technology, Chattogram-4349, Bangladesh
Shaswato Barua Department of Mechanical Engineering, Chittagong University of Engineering & Technology, Chattogram-4349, Bangladesh
Konok Chandra Bhowmik Department of Mechanical Engineering, Chittagong University of Engineering & Technology, Chattogram-4349, Bangladesh

DOI:

https://doi.org/10.38032/scse.2026.4.156

Keywords:

Metal oxides, Porous materials, Mechanical property, Hardness, Aluminum, Copper

Abstract

Because of their many uses in energy storage, environmental remediation, catalysis, and structural materials, porous metal oxides have garnered a lot of interest. In this work, ammonium hydrogen carbonate was used as the space holder in the space holding sintering procedure to create porous copper and aluminium oxides. To create macroporous structures and promote space holder breakdown, the samples were sintered at 750 °C and pressed at 115 MPa. Aluminium oxides showed more porosity than copper oxides for the same amount of space holder content, according to optical microscopy, which confirmed non-uniform pore morphologies. Aluminium oxides produced bigger and more interconnected pores, with pore size distributions ranging from sub-millimeter to several millimetres, according to ImageJ analysis. Porosity rose as space holder content increased, reaching 66.9% for aluminium oxides and 56.7% for copper oxides at 70 weight percent. According to ASTM C365-05 crushing load testing, copper oxides have a higher crushing load than aluminium oxides while having less porosity. These findings support the strong relationship between porosity, pore shape, and mechanical strength and point to a trade-off between structural strength and porous structure in metal oxide foams.

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8th International Conference on Mechanical Engineering and Renewable Energy (ICMERE 2025)

Published

02.08.2026

Conference Proceedings Volume

Vol. 4 (2026): Proceedings of 8th International Conference on Mechanical Engineering and Renewable Energy (ICMERE2025)

Section

Articles

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

All the articles published by this journal are licensed under a Creative Commons Attribution 4.0 International License

How to Cite

[1]

M. Faisal, M. A. Jahed, M. A. . Rahman, S. . Barua, and K. C. . Bhowmik, “Comparative Study of Crushing Loads of Porous Aluminium- and Copper-Oxides Synthesized Via Space Holding Sintering”, SCS:Engineering, vol. 4, pp. 341–345, Aug. 2026, doi: 10.38032/scse.2026.4.156.