A5017943153- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- Superconducting and THz Device Technology
- Physics of Superconductivity and Magnetism
- Additive Manufacturing and 3D Printing Technologies
- High Temperature Alloys and Creep
- Nuclear Materials and Properties
- Spectroscopy and Laser Applications
- Quantum Mechanics and Applications
- Optical Coatings and Gratings
- Aluminum Alloy Microstructure Properties
- Radio Frequency Integrated Circuit Design
- Advanced Materials Characterization Techniques
- Gas Sensing Nanomaterials and Sensors
- Quantum Computing Algorithms and Architecture
- High-Temperature Coating Behaviors
- Ionosphere and magnetosphere dynamics
- Atmospheric Ozone and Climate
- Titanium Alloys Microstructure and Properties
- Spacecraft and Cryogenic Technologies
- Welding Techniques and Residual Stresses
- Photonic and Optical Devices
- Metallurgy and Material Forming
- Transition Metal Oxide Nanomaterials
- Quantum Information and Cryptography
University of Twente
1997-2024
University of Nottingham
2021-2022
Universidad Istmo Americana
2011
National Institute of Astrophysics, Optics and Electronics
2011
Components manufactured by laser powder bed fusion (LPBF) are limited their performance for use in critical applications. LPBF materials have microstructural defects, such as suboptimal grain size and morphology, macroscale anomalies, lack of fusion. This results components performing below wrought counterparts various mechanical properties, creep which has seldom been researched. To understand the behaviour alloy 718, parts were fabricated using different scanning strategies build...
Abstract There is an increasing need for the use of additive manufacturing (AM) to produce improved critical application engineering components. However, materials manufactured using AM perform well below their traditionally counterparts, particularly creep and fatigue. Research has shown that this difference in performance due complex relationships between process parameters which affect material microstructure consequently mechanical as well. Therefore, it necessary understand impact...
High-Tc GdBa2Cu3O7−δ superconductor bolometers with operation temperatures near 89 K, large receiving areas of 0.95 mm2 and very high detectivity have been made. The are supported by 0.62 μm thick silicon nitride membranes. A specially developed silicon-on-nitride layer was used to enable the epitaxial growth high-Tc superconductor. Using a gold black absorption an efficiency for wavelengths between 70 200 about 83% has established. noise best devices is fully dominated intrinsic phonon...
Heat treatment of products post additive manufacture are considered hugely important since the metallurgical condition process is suboptimal. In case nickel-based superalloys, grain size, precipitate distribution and size distinct from wrought equivalents. Appropriate heat required to ensure material performance. this study, LPBF alloy 718, post-processed using a standard treatment, explored under thermal thermomechanical exposure conditions (with without applied stress) illustrate textural...
Abstract Laser Powder Bed Fusion (LPBF) presents itself as a potential method to produce thin porous structures, which have numerous applications in the medical and energy industries, due its in-process pore formation capabilities. Particularly, regenerative fuel cells, are capable of both producing storing through use hydrogen-based electrochemical cell electrolysers, respectively, can benefit from LPBF-induced porosity for it layer components electrode. Numerous studies reported that...
In this paper, we describe the design, fabrication, and performance of a high-T/sub c/ GdBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// superconductor bolometer positioned on 2/spl times/ 2-mm/sup 2/ 1-/spl mu/m-thick silicon nitride membrane. The structure has an effective area 0.64 mm/sup was grown specially developed silicon-on-nitride (SON) layer. This layer made by direct bonding to after chemical mechanical polishing. operation temperature is 85 K. A thermal conductance G=3.3/spl middot/10/sup...
High-T/sub c/ GdBa/sub 2/Cu/sub 3/O/sub 7-/spl delta//(GBCO) superconducting transition edge bolometers with operating temperatures near 90 K have been made both closed silicon-nitride membranes and patterned (SiN) spiderweb-like suspension structures. As a substrate silicon-on-nitride (SON) wafers are used which by fusion bonding of silicon wafer to top layer. The resulting monocrystalline layer on the enables epitaxial growth GBCO. By patterning thermal conductance G is reduced from about...
The Entanglement of quantum systems is a key aspect in order to understand the dynamics and behavior mixed (density matrix) as bipartite bits (q-bits). A quantifiable measure widely used "entanglement formation" state, defined minimum number singlets needed create an ensemble pure states that represents density matrix system. Considering double dot system coupled cavity type Jaynes-Cummings investigate entanglement between two dots, immersed each its own cavity, showing analytically has very...
Heat treatment of products post additive manufacture are considered hugely important since the metallurgical condition process is suboptimal. In case nickel-based superalloys, grain size, precipitate distribution and size distinct from wrought equivalents. Appropriate heat required to ensure material performance. this study, LPBF alloy 718, post-processed using a standard treatment, explored under thermal thermomechanical exposure conditions (with without applied stress) illustrate textural...