| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vossmeyer, Tobias
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Supraparticles from Cubic Iron Oxide Nanoparticles: Synthesis, Polymer Encapsulation, Functionalization, and Magnetic Properties
- 2022Strengthening Engineered Nanocrystal Three-Dimensional Superlattices via Ligand Conformation and Reactivitycitations
- 2021Constitutive and fracture behavior of ultra-strong supercrystalline nanocompositescitations
- 2020Shape-controlling effects of hydrohalic and carboxylic acids in TiO2 nanoparticle synthesiscitations
- 2020Mapping the Mechanical Properties of Hierarchical Supercrystalline Ceramic-Organic Nanocompositescitations
- 2019Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticlescitations
- 2019Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticles
- 2019Hierarchical supercrystalline nanocomposites through the self-assembly of organically-modified ceramic nanoparticlescitations
- 2019Alumina-doped zirconia submicro-particles : synthesis, thermal stability, and microstructural characterizationcitations
- 2019Synthesis and thermal stability of ZrO2@SiO2 core-shell submicron particlescitations
- 2019Tuning the Elasticity of Cross-Linked Gold Nanoparticle Assembliescitations
- 2019Elasticity of cross-linked titania nanocrystal assemblies probed by AFM-bulge testscitations
- 2019Alumina-Doped Zirconia Submicro-Particles: Synthesis, Thermal Stability, and Microstructural Characterizationcitations
- 2019Modulating the Mechanical Properties of Supercrystalline Nanocomposite Materials via Solvent–Ligand Interactionscitations
- 2016High-temperature stable Zirconia particles doped with Yttrium, Lanthanum, and Gadoliniumcitations
- 2015Synthesis and thermal stability of zirconia and yttria-stabilized zirconia microspheres
- 2015Yttria-stabilized zirconia microspheres: Novel building blocks for high-temperature photonics
Places of action
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article
Mapping the Mechanical Properties of Hierarchical Supercrystalline Ceramic-Organic Nanocomposites
Abstract
Multiscale ceramic-organic supercrystalline nanocomposites with two levels of hierarchy have been developed via self-assembly with tailored content of the organic phase. These nanocomposites consist of organically functionalized ceramic nanoparticles forming supercrystalline micron-sized grains, which are in turn embedded in an organic-rich matrix. By applying an additional heat treatment step at mild temperatures (250–350 C), the mechanical properties of the hierarchical nanocomposites are here enhanced. The heat treatment leads to partial removal and crosslinking of the organic phase, minimizing the volume occupied by the nanocomposites’ soft phase and triggering the formation of covalent bonds through the organic ligands interfacing the ceramic nanoparticles. Elastic modulus and hardness up to 45 and 2.5 GPa are attained, while the hierarchical microstructure is preserved. The presence of an organic phase between the supercrystalline grains provides a toughening effect, by curbing indentation-induced cracks. A mapping of the nanocomposites’ mechanical properties reveals the presence of multiple microstructural features and how they evolve with heat treatment temperature. A comparison with non-hierarchical, homogeneous supercrystalline nanocomposites with lower organic content confirms how the hierarchy-inducing organic excess results in toughening, while maintaining the beneficial effects of crosslinking on the materials’ stiffness and hardness.