| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Schneider, Gerold A.
Deutsche Forschungsgemeinschaft
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (43/43 displayed)
- 2022Nanoindentation of Supercrystalline Nanocomposites:Linear Relationship Between Elastic Modulus and Hardnesscitations
- 2022Strengthening Engineered Nanocrystal Three-Dimensional Superlattices via Ligand Conformation and Reactivitycitations
- 2022Bridging Nanocrystals to Robust, Multifunctional, Bulk Materials through Nature-Inspired, Hierarchical Designcitations
- 2022Nanoindentation of Supercrystalline Nanocompositescitations
- 2021Constitutive and fracture behavior of ultra-strong supercrystalline nanocompositescitations
- 2021Deformation Behavior of Cross-Linked Supercrystalline Nanocomposites: An in Situ SAXS/WAXS Study during Uniaxial Compressioncitations
- 2021Deformation Behavior of Cross-Linked Supercrystalline Nanocompositescitations
- 2020Strong Macroscale Supercrystalline Structures by 3D Printing Combined with Self‐Assembly of Ceramic Functionalized 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
- 2019Nanoindentation-based study of the mechanical behavior of bulk supercrystalline ceramic-organic nanocomposites
- 2019Stable crack propagation in free standing thermal sprayed Al 2 O 3 and Al 2 O 3 —ZrO 2 —TiO 2 coatingscitations
- 2019Iron oxide-based nanostructured ceramics with tailored magnetic and mechanical properties: Development of mechanically robust, bulk superparamagnetic materials
- 2019Iron oxide-based nanostructured ceramics with tailored magnetic and mechanical properties: development of mechanically robust, bulk superparamagnetic materialscitations
- 2019Advancing the fabrication of YSZ-inverse photonic glasses for broadband omnidirectional reflector films
- 2019Modulating the Mechanical Properties of Supercrystalline Nanocomposite Materials via Solvent–Ligand Interactionscitations
- 2018Dielectric breakdown toughness from filament induced dielectric breakdown in borosilicate glass
- 2018Photonic materials for high-temperature applications: synthesis and characterization by X-ray ptychographic tomography
- 2017Electric-field-induced phase transition in Mn-Doped (K0.48Na0.48Li0.04)NbO3 lead-free ceramics
- 2017Exceptionally strong, stiff and hard hybrid material based on an elastomer and isotropically shaped ceramic nanoparticlescitations
- 2017Highly porous α-Al 2 O 3 ceramics obtained by sintering atomic layer deposited inverse opals
- 2017Using dilute spouting for fabrication of highly filled metal-polymer composite materials
- 2016Effect of La and Mn on the properties of alkaline niobate-based piezoelectric ceramics
- 2015Investigation of the phase space in lead-free (K x Na1-x )1-y Li y (Nb1-z Ta z )O3 ferroelectric ceramics
- 2015Enhanced structural and phase stability of titania inverse opalscitations
- 2015Nanoporous-gold-based composites : toward tensile ductility
- 2015Yttria-stabilized zirconia microspheres: Novel building blocks for high-temperature photonics
- 2014Novel, highly-filled ceramic–polymer composites synthesized by a spouted bed spray granulation process
- 2014Attritor-milling of poly(amide imide) suspensions
- 2013A novel method for a multi-level hierarchical composite with brick-and-mortar structure
- 2013Size-dependence of the dielectric breakdown strength from nano- to millimeter scale
- 2012Piezoresponse force microscopy studies on (100), (110) and (111) epitaxial growth of BiFeO3 thin filmscitations
- 2011Temperature-dependent synchrotron powder diffraction phase studies of (K0.37Na0.52Li0.03)(Nb0.87Ta0.1Sb0.03)O3 ferroelectric ceramics
- 2010Size-dependent elastic-inelastic behavior of enamel over millimeter and nanometer length scales
- 2010Crack arrest within teeth at the dentinoenamel junction caused by elastic modulus mismatch
- 2010Mixed-mode stress intensity factors for kink cracks with finite kink length loaded in tension and bending
- 2010What do we know about surface charges on cracks in ferroelectric ceramics?
- 2010Effect of antimony substitution for niobium on the crystal structure, piezoelectric and dielectric properties of (K0.5Na0.5)NbO3 ceramicscitations
- 2010Determination of the multiaxial failure criteria for alumina ceramics under tension–torsion test
- 2009Determination of the Elastic-plastic Transition of Human Enamel by Nanoindentation
- 2009Investigation of the dielectric and piezoelectric properties of potassiumsodium niobate ceramics close to the phase boundary at (K0.35Na0.65)NbO3 and partial substitutions with lithium and antimony
- 2009Effect of MnO2 on the dielectric and piezoelectric properties of Alkaline Niobate based lead free piezoelectric ceramics
- 2007Structural micro-layered ceramics with surfaces under tension and compression with increasing apparent fracture toughnesscitations
Places of action
| Organizations | Location | People |
|---|
article
Constitutive and fracture behavior of ultra-strong supercrystalline nanocomposites
Abstract
Supercrystalline nanocomposites are a new class of hybrid and nanostructured materials that can reach exceptional mechanical strength and can be fabricated at low temperatures. Hierarchically arranged, they bridge the gap from the nano- to the macro-scale. Even though their mechanical properties are starting to be characterized, their constitutive behavior is still largely unexplored. Here, the mechanical behavior of supercrystalline nanocomposites of iron oxide nanoparticles, surface-functionalized with oleic acid and oleyl phosphate ligands, is investigated in both bending and compression, with loading–unloading tests. A new bar geometry is implemented to better detect deformation prior to unstable crack propagation, and notched bending bars are tested to evaluate fracture toughness. Micro-mechanical tests result in the values of strength and elastic modulus that are extremely high for supercrystals, reaching record-high numbers in the oleic acid-based nanocomposites, which also show a significant tension–compression asymmetry. The constitutive behavior of both materials is predominantly linear elastic, with some more marked nonlinearities arising in the oleyl phosphate-based nanocomposites. The fracture toughness of both types of nanocomposites, ∼0.3 MPa√m, suggests that extrinsic toughening, associated with both material composition and nanostructure, plays an important role. Fractographic observations reveal analogies with shear and cleavage in atomic crystals. The influence of material composition, nanostructure, and processing method on the mechanical behavior of the nanocomposites is analyzed.