A5017629520- Physics of Superconductivity and Magnetism
- ZnO doping and properties
- Superconductivity in MgB2 and Alloys
- Advanced Condensed Matter Physics
- Magnetic properties of thin films
- Electrophoretic Deposition in Materials Science
- Magnetic confinement fusion research
- Mesoporous Materials and Catalysis
- Fluid Dynamics and Vibration Analysis
- Vibration and Dynamic Analysis
- Adhesion, Friction, and Surface Interactions
- Particle accelerators and beam dynamics
- Ionosphere and magnetosphere dynamics
- Thermal Analysis in Power Transmission
- Nanomaterials and Printing Technologies
- Photonic Crystals and Applications
- Magnetic Bearings and Levitation Dynamics
- Thin-Film Transistor Technologies
- Brake Systems and Friction Analysis
- Copper-based nanomaterials and applications
- HVDC Systems and Fault Protection
- Chemistry and Chemical Engineering
- Fluid Dynamics and Thin Films
- History and advancements in chemistry
- Electromagnetic Simulation and Numerical Methods
Weatherford College
2022
National High Magnetic Field Laboratory
2022
Florida State University
2022
Institut de Ciència de Materials de Barcelona
2015-2022
Abstract Solution deposited YBa 2 Cu 3 O 7−x (YBCO) nanocomposites with preformed nanoparticles represent a promising cost-effective approach for superior critical current properties under applied magnetic fields. Nonetheless, the majority of YBCO high nanoparticle loads (>20%) suffer from coalescence and degraded superconducting properties. Here, we study influence concentration (0–25% mol), size (5 nm–10 nm) composition (BaHfO , BaZrO ) on generation structural defects in epitaxial...
Although high temperature superconductors are promising for power applications, the production of low‐cost coated conductors with current densities—at magnetic fields—remains challenging. A superior superconducting YBa 2 Cu 3 O 7–δ nanocomposite is fabricated via chemical solution deposition (CSD) using preformed nanocrystals (NCs). Preformed, colloidally stable ZrO NCs added to trifluoroacetic acid based precursor and NCs' stability confirmed up 50 mol% at least 2.5 months. These tend...
A methodology of general validity to prepare epitaxial nanocomposite films based on the use colloidal solutions containing different crystalline preformed oxide nanoparticles (ex situ nanocomposites) is reported. The trifluoroacetate (TFA) metal–organic chemical solution deposition route used with alcoholic solvents grow YBa2Cu3O7 (YBCO) films. For this reason stabilizing in polar a challenging goal. We have scalable nanoparticle synthetic methodologies such as thermal and microwave-assisted...
In-field angular pinning performances at different temperatures have been analysed on chemical solution deposited (CSD) YBa2Cu3O7−x (YBCO) pristine films and nanocomposites. We show that with this analysis we are able to quantify the vortex strength energies, associated kinds of natural artificial defects, acting as efficient centres regions H–T phase diagram. A good quantification variety defects active magnetic fields provides a unique tool design best landscape under operating conditions....
Superconducting nanocomposites are the best material choice to address performance required in power applications and magnets working under high magnetic fields. However, it is still challenging sort out how achieve highest superconducting using attractive competitive manufacturing processes. Colloidal solutions have been recently developed as a novel very promising low cost route manufacture nanocomposite coated conductors. Well dispersed stabilized preformance nanoparticle first prepared...
We have employed the CSD method to synthesize GdBCO and GdBCO–Gd2O3 nanocomposite 250–300 nm thin films. For this we designed a new low-fluorine solution never used before in synthesis of films that allows us reduce HF release by 80% increase reproducibility pyrolysis process. The growth these required thermal process be designed, which refer as 'flash-heating', where heating rate is extremely fast (∼600 °C min−1). structure superconducting properties pristine are excellent, showing (00 l)...
Abstract The magnetic flux pinning capabilities of YBa 2 Cu 3 O 7-x (YBCO) coated conductors vary strongly across different regions the field–temperature phase diagram and with orientation field θ . Here, we determine optimal landscape for a given region by investigating critical current density J c ( H , T ) in 5–77 K temperature range, from self-field to high fields 35 T. Our systematic analysis reveals promising routes artificially engineering YBCO any interest diagram. In...
The intrinsic and effective anisotropies, both in the liquid solid vortex regimes, of $\mathrm{YB}{\mathrm{a}}_{2}\mathrm{C}{\mathrm{u}}_{3}{\mathrm{O}}_{7}$ (YBCO) pristine nanocomposite thin films have been investigated. Angular resistivity measurements under varying fields temperatures were performed to characterize vs anisotropy samples regime long-range displacements. ${\ensuremath{\gamma}}_{\mathrm{eff}}$ was determined from scaling irreversibility line, applying Blatter approach...
The shape of the electric-field-current-density (E-J) curve is determined by flux pinning and also dynamics vortices. Here, we propose a novel methodology to study normalized creep rate S in YBa
YBa2Cu3O7−x (YBCO) nanocomposites for wire applications need to operate in a broad range of frequencies, ranging from dc magnets GHz cavities and screenings future particle accelerators. We have investigated the in-field angular vortex pinning performance at 50 two types nanocomposites, pulsed laser deposition (PLD) YBCO with mixed Ba2YNbO6 + Ba2YTaO6 (BYNTO) nanorods chemical solution deposited (CSD) BaHfO3 (BHO) nanoparticles (NPs), pristine counterpart films, grown on top...
Inkjet printing (IJP) is a very appealing cost-effective deposition technique to achieve large-area solution-derived functional films. For many applications, it challenging increase the film thickness in order competitive performance, for instance, high critical currents superconducting In this paper, preparation of YBa2Cu3O7 thick films (∼1.1 μm) using single reported. Specific rules ink design, protocols, and pyrolysis processes are provided. The most important aspect formulate an with...
Abstract The magnetic flux pinning capabilities of YBa 2 Cu 3 O 7−x (YBCO) coated conductors (CCs) vary strongly between different regions the field-temperature (H-T) diagram and with orientation field (θ). Here, we determine optimal landscape for a given H-T region by investigating critical current density J c (H,θ,T) in 5-77 K temperature range, from self-field to very high fields (35 T). Our systematic analysis reveals best directions target artificially engineer CCs any interest. In...