Hydrogen Storage in Partially Exfoliated Magnesium Diboride Multilayers.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202205487
Abstract: Metal boride nanostructures have shown significant promise for hydrogen storage applications. However, the synthesis of nanoscale metal boride particles is challenging because of their high surface energy, strong inter- and intraplanar bonding, and difficult-to-control surface… read more here.
Keywords: magnesium diboride; hydrogen storage; surface; mgb2 ... See more keywords
High-Performance Bulk MgB2 Superconductor Using Amorphous Nano-boron
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-018-4919-x
Abstract: MgB2 bulks were produced by in situ solid-state reaction in Ar gas using high-purity commercial powders of Mg metal and amorphous nano-B mixed in a fixed ratio of Mg:B = 1:2. Single-phase materials have been obtained and… read more here.
Keywords: amorphous nano; mgb2; boron; high performance ... See more keywords
The Optimization of Jc, Birr, n value, Wires Diameter, and Research of the Dominant Pinning Mechanism for Applications of Undoped MgB2 in Superconducting Multi-section Coils
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Superconductivity and Novel Magnetism"
DOI: 10.1007/s10948-020-05663-3
Abstract: This article discusses the influence of MgB2 wire diameter on critical parameters, dominant pinning mechanism, and n value. Studies were conducted on multifilament MgB2 wires of the 0.84 mm and 0.64 mm diameter. The wires… read more here.
Keywords: research; wires diameter; pinning mechanism; value ... See more keywords
Effects of silver doping on magnetic levitation performance of MgB2 superconductors
Sign Up to like & getrecommendations! Published in 2020 at "Cryogenics"
DOI: 10.1016/j.cryogenics.2020.103061
Abstract: Abstract MgB2 bulk samples with the silver contents of 0, 1.5, 3.0, 4.5, 6.0, 9.0 and 12.0 wt% were fabricated at 775 °C for 3 h in Ar atmosphere by solid-state reaction method. The structural and electromagnetic properties… read more here.
Keywords: magnetic levitation; levitation force; levitation; mgb2 ... See more keywords
Preparation and characterization of sintered B/MgB2 as heat release material
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.05.038
Abstract: Abstract Sintered B/MgB2 (S-B/MgB2) was originally prepared by introducing Mg to B and sintering the system under appropriate temperature and atmosphere. During the sintering process, B2O3 layer was depleted by Mg reduction and the product… read more here.
Keywords: heat release; release material; sintered mgb2; mgb2 ... See more keywords
Photovoltaic effect in Ag/MgB2 heterostructure
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2019.04.230
Abstract: Abstract Photovoltaic effects of Ag/MgB2 system induced by continuous wave purple-laser irradiation have been systemically investigated between 10 K and 250 K. The results show that the photo-induced voltage has a photovoltaic nature arising from a built-in… read more here.
Keywords: built electric; field; mgb2; photovoltaic effect ... See more keywords
Evaluation and control of residual amorphous phases in carbon-doped MgB2 superconductors
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2021.158867
Abstract: Abstract Evaluation and control of amorphous phases in materials are very important for optimizing their properties. Herein, we focus on polycrystalline MgB2 materials prepared with hydrocarbon doping and study the effects of residual amorphous impurities… read more here.
Keywords: mgb2; residual amorphous; amorphous phases; evaluation control ... See more keywords
Effect of malonic acid and of different doping methods on the superconducting properties of MgB2 superconductors
Sign Up to like & getrecommendations! Published in 2018 at "Physica C: Superconductivity and its Applications"
DOI: 10.1016/j.physc.2018.10.011
Abstract: Abstract In this paper, malonic acid was tested as a new carbon source and its effects on the structural and superconducting properties of bulk MgB2 have been systematically investigated. The detailed pyrolysis process of malonic… read more here.
Keywords: different doping; superconducting properties; malonic acid; acid addition ... See more keywords
Increase of the critical current density of MgB2 superconducting bulk samples by means of methylene blue dye additions
Sign Up to like & getrecommendations! Published in 2019 at "Physica C: Superconductivity and its Applications"
DOI: 10.1016/j.physc.2019.1353506
Abstract: Abstract MgB2 bulk samples were made by means of reaction of elemental Mg and B powders with or without additions of methylene blue trihydrate, a carbon source, which melts at high temperature upon decomposition. The… read more here.
Keywords: field; mgb2; current density; methylene blue ... See more keywords
Tailored joint fabrication process derived ultra-low resistance MgB2 superconducting joint
Sign Up to like & getrecommendations! Published in 2020 at "Scripta Materialia"
DOI: 10.1016/j.scriptamat.2019.11.020
Abstract: Abstract We report an ultra-low resistance superconducting joint using unreacted multifilament MgB2 wires produced by tailoring the powder compaction pressure within the joint with heat treatment conditions. The joint demonstrated an ultra-low resistance of 5.48 × 10−15… read more here.
Keywords: superconducting joint; low resistance; ultra low; process ... See more keywords
High Trapped Fields in C-doped MgB2 Bulk Superconductors Fabricated by Infiltration and Growth Process
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-31416-3
Abstract: The grain boundaries in superconducting MgB2 are known to form effective magnetic flux pinning sites and, consequently, bulk MgB2 containing a fine-grain microstructure fabricated from nanoscale Mg and B precursor powders exhibits good magnetic field-trapping… read more here.
Keywords: field; infiltration growth; bulk; mgb2 ... See more keywords