Investigation of the damage phenomenology with dependence on the macroporosity and microporosity of porous Freeze Foams

Research output: Contribution to journalResearch articleContributedpeer-review



Freeze Foams are cellular, ceramic structures with hierarchical pore structures that are manufactured using the direct foaming process. By tailoring their morphology and strength, these foam structures are able to cover a wide range of application. Earlier works identified that pore-forming influencing factors (water and air content, suspension temperature, as well as pressure reduction rate) dictate the constitution on a macroscopic and microscopic scale. Therefore, the ability to manufacture foams whose properties align with the component requirements would be an important step in advancing towards a widespread application of these promising materials. With this goal in mind, the correlation between the pore-forming influencing factors and the resulting mechanical properties was quantified. Foams with independently adjustable porosities were produced at the micro and macro scales and evaluated according to their material failure behavior under compressive loads. As a result, foams with determined macroporosities between 38 and 62%, microporosities between 25 and 42%, and compression strengths between 1 and 7 MPa with different material failure characteristics were manufactured and systematically investigated.


Original languageEnglish
Article number2484
Number of pages11
Issue number6
Publication statusPublished - 21 Mar 2023

External IDs

Scopus 85151475143
WOS 000960124200001
PubMed 36984364
ORCID /0000-0003-1370-064X/work/142243846



  • ceramic foam, compressive strength, porous ceramics, non-destructive testing