Microstructure and critical current density in MgB2 bulk made of 4.5 wt% carbon-coated boron
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00477618" target="_blank" >RIV/68378271:_____/17:00477618 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/871/1/012059" target="_blank" >http://dx.doi.org/10.1088/1742-6596/871/1/012059</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/871/1/012059" target="_blank" >10.1088/1742-6596/871/1/012059</a>
Alternative languages
Result language
angličtina
Original language name
Microstructure and critical current density in MgB2 bulk made of 4.5 wt% carbon-coated boron
Original language description
Superconducting performance and its uniformity was studied in the single-step sintered MgB2 bulk prepared with 4.5 wt% of carbon in the carbon-encapsulated boron. The 20 mm in diameter MgB2 pellet was cut into several pieces from bottom to top and the microstructure, superconducting transition temperature (Tc onset), and critical current density at 20 K were studied. DC magnetization measurements showed a sharp superconducting transition with onset Tc at around 35.5 K in all positions. SEM analysis indicated a dispersion of grains between 200 and 300 nm in size, as the main pinning medium in this MgB2 superconductors. The critical current density at 20 K was quite uniform, around 330 kA/cm2 and 200 kA/cm2 at self-field and 1 T, respectively, for all measured positions. The results indicate that the carbonencapsulated boron is very promising for production of high quality bulk MgB2 material for various industrial applications.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Journal of Physics: Conference Series
ISBN
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ISSN
1742-6588
e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
IOP Publishing
Place of publication
Bristol
Event location
Tokyo
Event date
Dec 13, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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