ArticleMaterials (Basel, Switzerland)2019
Notch (In)Sensitivity of Aluminum Matrix Syntactic Foams.
Article in Materials (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Compression Properties and Fabrication of Closed-Cell Metal Matrix Syntactic Foams AlMaterials (Basel, Switzerland) · 2022Article
- Special Issue 'Advanced and High Performance Metallic Foams'.Materials (Basel, Switzerland) · 2021Article
- Fracture Toughness of Hollow Glass Microsphere-Filled Iron Matrix Syntactic Foams.Materials (Basel, Switzerland) · 2020Article
- Open-Cell Aluminum Foams by the Sponge Replication Technique.Materials (Basel, Switzerland) · 2019Article
- Damage Characterization during Compression in a Perlite-Aluminum Syntactic Foam.Materials (Basel, Switzerland) · 2019Article
- Mechanical Characterization of Different Aluminium Foams at High Strain Rates.Materials (Basel, Switzerland) · 2019Article
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Authors and funding
4 authors.
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Abstract
Aluminum alloy (Al99.5 or AlSi12)-based metal matrix syntactic foams (MMSFs) were produced by pressure infiltration with ~65 vol % Globocer filler (33 wt % Al₂O₃, 48 wt % SiO₂, 19 wt % Al₂O₃∙SiO₂). The infiltrated blocks were machined by different geometry tools in order to produce notched samples. The samples were loaded in three-point bending, and the loading force values were recorded against the cross-head displacements and the crack opening displacements. To measure up the notch sensitivity and toughness of the MMSFs, the fracture energies and the fracture toughness values were determined. The results showed that the mentioned quantities are needed to describe the behavior of MMSFs. The fracture energies were shown to be notch-sensitive, while the fracture toughness values were dependent only on the matrix material and were insensitive to the notch geometry. The complex investigation of the fracture surfaces revealed strong bonding between the hollow spheres and the Al99.5 matrix due to a chemical reaction, while this bonding was found to be weaker in the case of the AlSi12 matrix. This difference resulted in completely different crack propagation modes in the case of the different matrices.
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