High-pressure synthesis of MgB2 with addition of Ti

@article{Prikhna2004HighpressureSO,
  title={High-pressure synthesis of MgB2 with addition of Ti},
  author={Tatiana A. Prikhna and Wolfgang Gawalek and Ya. M. Savchuk and Viktor Moshchil and N. V. Sergienko and Rudolf Hergt and Michael Wendt and Sergey N. Dub and Ch. Schmidt and Jan Dellith and Vladimir S. Melnikov and Tobias Habisreuther and Doris Litzkendorf and P. A. Nagorny Institute for Superhard Materials and Kiev and Ukraine and Institut fur Physikalische Hochtechnologie and Jena and H Germany and Institute of Geochemistry and Mineralogy and Ore-Formation},
  journal={Physica C-superconductivity and Its Applications},
  year={2004},
  volume={402},
  pages={223-233}
}

Figures from this paper

Formation of magnesium diboride-based materials with high critical currents and mechanical characteristics by highpressure synthesis
The developed method of high-pressure synthesis (HPS) allows producing nanostructural highly dense material based on MGB2, which possesses the highest superconducting and mechanical characteristics
Effects of High Pressure on the Physical Properties of MgB2
The synthesis of MgB2-based materials under high pressure gave the possibility to suppress the evaporation of magnesium and to obtain near theoretically dense nanograined structures with high
Formation of nanostructure in magnesium diboride based materials with high superconducting characteristics
The paper presents an analysis of the properties of bulk superconducting magnesium diboride-based materials obtained by heating at high quasi-hydrostatic pressures (1–2 GPa), hot pressing (30 MPa),
Inhomogeneity of Magnesium Diboride Structure and its Effect on Critical Current Density
The influence of the oxygen segregation into Mg-B-O inclusions (which are oxygen enriched as compared to the matrix material) and the formation of boron enriched phases (with near MgB12 composition)
High Pressure Synthesized Magnesium Diboride- and Dodecaboride-Based Superconductors: Structure and Properties
The critical current density, jc, of high-pressure synthesized MgB2-based balk materials correlates with the amount and distribution of higher borides (MgB12) and Mg-B-O inclusions, which in tern
Peculiarities of high-pressure and hot-pressing manufacture of MgB2-based blocks with high critical currents for electrical machines
Structure and properties of MgB2-based materials in the form of cylinders, rings, quadratic and rectangular blocks manufactured using high-pressure (2 GPa), hot-pressing (30 MPa), hot isostatic
High-Pressure High-Temperature Synthesis of Nanostructural Magnesium Diboride for Electromotors and Devices Working at Liquid Hydrogen Temperatures
Addition of Ti and Zr to high-pressure (HP) synthesized MgB2 results in an increase of critical current density of the material due to the absorption of impurity hydrogen coming most likely from the
...
...

References

SHOWING 1-10 OF 16 REFERENCES
High critical current density of MgB2 bulk superconductor doped with Ti and sintered at ambient pressure
Ti-doped MgB2 superconductors with different doping levels were prepared by solid-state reaction at ambient pressure. The density, diamagnetic signal, and Jc of the samples change significantly with
Mg(B,O)2 precipitation in MgB2
MgB2 samples prepared by solid-state reaction were investigated using high-resolution transmission electron microscopy (HREM), x-ray energy-dispersive spectroscopy (EDX), electron energy-loss
High critical current density and enhanced irreversibility field in superconducting MgB2 thin films
TLDR
It is shown that MgB2 thin films that are alloyed with oxygen can exhibit a much steeper temperature dependence of H*(T) than is observed in bulk materials, yielding an H* value at 4.2 K greater than 14 T.
Nanoparticle structure of MgB2 with ultrathin TiB2 grain boundaries
The microstructure of the Ti-doped MgB2 which shows a significantly improved critical current density, Jc [Appl. Phys. Lett. 79, 1154 (2001)], is investigated. It is found that Ti does not occupy the
Observation of coherent oxide precipitates in polycrystalline MgB2
Here we describe the results of an atomic resolution study of oxygen incorporation into bulk MgB2. We find that ∼20–100 nm sized precipitates are formed by ordered substitution of oxygen atoms onto
Electronic anisotropy, magnetic field-temperature phase diagram and their dependence on resistivity in c-axis oriented MgB2 thin films
An important predicted, but so far uncharacterized, property of the new superconductor MgB2 is electronic anisotropy arising from its layered crystal structure. Here we report on three c-axis
Magnetization of High-Field Superconductors
Experimental results and phenomenological theory based on the sponge model for hysteretic high-field superconductors are given. After developing the exposition for static magnetization, the response
...
...