A5068985967- Aluminum Alloys Composites Properties
- Microstructure and mechanical properties
- Intermetallics and Advanced Alloy Properties
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Copper Interconnects and Reliability
- Chalcogenide Semiconductor Thin Films
- Advanced Semiconductor Detectors and Materials
- Semiconductor materials and devices
- Calcium Carbonate Crystallization and Inhibition
- MXene and MAX Phase Materials
- Semiconductor materials and interfaces
- Advanced Materials Characterization Techniques
- Magnesium Alloys: Properties and Applications
- Electronic Packaging and Soldering Technologies
- Cephalopods and Marine Biology
- Non-Destructive Testing Techniques
- Metallurgical and Alloy Processes
- Hydrogen Storage and Materials
- Integrated Circuits and Semiconductor Failure Analysis
- Electron and X-Ray Spectroscopy Techniques
- Diamond and Carbon-based Materials Research
- Paleontology and Stratigraphy of Fossils
- Corrosion Behavior and Inhibition
- Metallurgical Processes and Thermodynamics
Technion – Israel Institute of Technology
2013-2025
Materials Science & Engineering
2020
The structure and chemistry of what initially was proposed to be Ti 3 Al 2 N are incorrect. Using high‐resolution transmission electron microscopy, together with chemical analysis, the stoichiometry this compound is concluded 4 AlN 3‐delta (where delta = 0.1). layered, wherein every four layers almost‐close‐packed atoms separated by a layer atoms. occupy ∼97.5% octahedral sites between unit cell comprised eight two atoms; hexagonal P 6 / mmc symmetry (lattice parameters 0.3 nm c 2.33 nm)....
Abstract In the absence of minerals as stiffening agents, insects and spiders often use metal‐ion cross‐linking protein matrices in their fully organic load‐bearing “tools.” this comparative study, hierarchical fiber architecture, elemental distribution, micromechanical properties manganese‐ calcium‐rich cuticle claws spider Cupiennius salei , Zn‐rich cheliceral fangs same animal are analyzed. By correlating experimental results to finite element analysis, functional microstructural...
Biomineralization processes in living organisms result the formation of skeletal elements with complex ultrastructures. Although pathways sea urchin larvae are relatively well known, interrelation between calcite, amorphous calcium carbonate (ACC), and intracrystalline organics adult biominerals is less clear. Here, we study this interplay spines test plates Paracentrotus lividus urchins. Thermogravimetric analysis coupled differential scanning calorimetry or mass spectrometry measurements,...
Anisotropic heat–conducting materials play crucial roles in designing electronic, optoelectronic, and thermoelectric devices, where temperature thermal stress are important. Despite substantial research efforts, a major obstacle to determining the anisotropic diffusivity tensor polycrystalline systems is need for robust, direct, nondestructive technique distinguish between distinct diffusivities. Here, we demonstrate conceptually unique microscope capable of performing high-resolution local...
Polycrystalline Cd1−xZnxTe films were grown on glass substrates over the full range of compositions (0 < x 1) by metal–organic chemical vapour deposition at 480 °C. The (~5 µm thick) showed uniform texture oriented along 1 1 1 direction, perpendicular to substrate, independent film composition. dependence lattice parameter cubic composition followed Vegard's law. thick shown be a single phase and structurally stable. average grain size in was 3–5 µm. dominant imperfections twins (mostly Σ =...
Abstract We propose the strain-induced solid-state coating process of twinning-induced plasticity (TWIP) steel with zinc, achieved through concurrent rolling TWIP and zinc sheets. Our study explores effects strain, strain rate, temperature on morphology intermixing at Zn-TWIP interface. found that two simultaneous mechanisms are responsible for formation a joint interface between sheets in range 100–380 °C, namely mechanical accelerated diffusion along moving dislocations other defects...
The solubility limit of Ca in 99.99% pure α‐ Al 2 O 3 (alumina) was measured using a wavelength dispersive spectrometer mounted on scanning electron microscope. samples were equilibrated at concentration which ensured saturation the grains with , and quenched water from 1600°C. results compared those furnace cooled For samples, found to be 51 ± 1 ppm, is significantly larger than for (26 ppm).
Abstract In biomineralization, amorphous precursors enable formation of complicated crystal shapes and incorporation organic inorganic impurities. some cases the concentrations impurity atoms greatly exceed thermodynamical (equilibrium) solubility limits. To shed additional light on this, crystallization experiments with Sr‐rich calcium carbonate (ACC) are carried out. The Sr‐concentration in ACC, Sr/(Ca+Sr) ≈0.3, is more than 60 times larger its limit calcite. Crystallization ACC...
We study the lifetime and emission properties of ferroelectric cathodes made perovskites with ABO3 composition. To excite electron emission, we applied negative driving pulses different amplitudes durations to rear electrode cathodes. The composition samples before after experiments was checked by energy dispersive spectroscopy Auger spectroscopy. image structure emitting surface were studied scanning microscopy. It found that tested depends strongly on their as well parameters pulse....
This study is inspired by the potential of application-designed aluminium-copper conductors. work combines recently discovered advantages hybrids with one constituent having a helical architecture benefits provided severe plastic deformation (SPD) methods. The are made embedding copper helixes in melted aluminium and subjecting cast hybrid ingots to different SPD techniques. electrical conductivity, microstructure features strength produced samples discussed relation effect annealing on both...
Abstract The effects of interstitial carbon on the electronic and mechanical properties copper are studied theoretically. Semiempirical methodology, atomistic simulations first-principles density-functional embedded-cluster schemes combined to extract some understanding diffusion process related degradation Cu-C composite materials under extremes temperature stress. High-resolution scanning electron microscopy results presented, which demonstrate existence a solid solution zone at interface.
An effect of alloying element content on mechanical properties and precipitate formation in Mg–RE alloys was studied for Mg–8Gd–4Y–1Zn–0.4Zr (wt%) Mg–10Gd–5Y–1.8Zn–0.4Zr (wt%). It is shown that small variations the concentration can be used to manipulate alloy microstructure towards eliminating asymmetry (tension/compression) anisotropy yield stress.
Abstract Nylon‐6 (Ny‐6) and ethylene‐vinyl alcohol copolymer (EVOH) binary blends were prepared in various compositions via dynamic melt blending. In addition, 50/50 of EVOH with nylon‐6/6.9 (Ny6/6.9) nylon‐11 (Ny‐11) to study the effect nylon type on structuring process under mixing. The phase morphology crystallization behavior investigated using differential scanning calorimetry (DSC), mechanical thermal analysis (DMTA), Raman spectroscopy, electron microscopy (SEM) energy dispersive...