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<p>As an important parameter of metal foams, the specific surface area could be often difficult to measure in practice. In order to evaluate this parameter, a mathematical relation has been derived from the octahedral model to calculate the specific surface area of porous materials. More investigations are now carried out further on a series of diversified metal foam products. This paper looks into a quite representative number of metal foam products with different material species and various structures and develops a series of practical applications to verify the present modeling relation. The research results show that the relation can be well appropriate for the calculation of all these porous products, with the average calculating deviation within 3%, mostly around 1%. This indicates this characterization well reflects the relationship between the specific surface area and the porosity for metal foams and can be good at practically calculating the specific surface area.</p>

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Practical applications of the octahedral model theory for porous materials: characterizing the specific surface area of metal foams

  • 期刊论文

  • 发表日期：

    2026年4月28日

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  • P. S. Liu,
  • P. Y. Yan

摘要

As an important parameter of metal foams, the specific surface area could be often difficult to measure in practice. In order to evaluate this parameter, a mathematical relation has been derived from the octahedral model to calculate the specific surface area of porous materials. More investigations are now carried out further on a series of diversified metal foam products. This paper looks into a quite representative number of metal foam products with different material species and various structures and develops a series of practical applications to verify the present modeling relation. The research results show that the relation can be well appropriate for the calculation of all these porous products, with the average calculating deviation within 3%, mostly around 1%. This indicates this characterization well reflects the relationship between the specific surface area and the porosity for metal foams and can be good at practically calculating the specific surface area.