Tuning of grain boundaries in MgB2 by boron ultra-sonication in 2-propanol - A way to low-cost high-Jc bulk superconducting magnets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00572410" target="_blank" >RIV/68378271:_____/23:00572410 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0343247" target="_blank" >https://hdl.handle.net/11104/0343247</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2023.170146" target="_blank" >10.1016/j.jallcom.2023.170146</a>
Alternative languages
Result language
angličtina
Original language name
Tuning of grain boundaries in MgB2 by boron ultra-sonication in 2-propanol - A way to low-cost high-Jc bulk superconducting magnets
Original language description
Viscosity of solvent has been found to influence particle refinement during high-energy ultra-sonic treat-ment. 2-propanol, a solvent with viscosity ∼ 2.07 cP, was used to ultra-sonically refine boron powder. Unlike ball-milling, boron powder refined this way seem to be oxide free in nature as observed via X-ray diffraction (XRD). Field-emission scanning electron microscope (FE-SEM) showed a boron powder refinement up to nanoscale as well as morphological changes to the particles. FE-SEM of the bulk MgB2 fabricated from the ultra-sonically refined boron exhibited a principal MgB2 phase with scarce impurities of MgO. Lattice parameters ‘a’ and ‘c’ calculated from XRD patterns remained constant around 3.086 and 3.523 Å respectively, ruling out any carbon intrusion from solvent into bulks. Simultaneously all the bulks had Tc,onset around 38.5 K, with a sharp transition (ΔTc ∼ 0.5 K).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
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
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Alloys and Compounds
ISSN
0925-8388
e-ISSN
1873-4669
Volume of the periodical
955
Issue of the periodical within the volume
Sep
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
8
Pages from-to
170146
UT code for WoS article
000990828300001
EID of the result in the Scopus database
2-s2.0-85153850146