Size reduction of boron particles by high-power ultrasound for optimization of bulk MgB2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00539073" target="_blank" >RIV/68378271:_____/20:00539073 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0316825" target="_blank" >http://hdl.handle.net/11104/0316825</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6668/abb63e" target="_blank" >10.1088/1361-6668/abb63e</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Size reduction of boron particles by high-power ultrasound for optimization of bulk MgB2

Popis výsledku v původním jazyce

Critical current density,Jc, in superconductors is strongly connected with size of defects in thematerial. Frequently, the smaller defects, the higherJc. In this work, we tried to reduce the sizeof cheap commercial boron precursor powder using high energy ultra-sonication in ethanolmedia. The resulting powder was then utilized in synthesizing bulk MgB2via sintering at775◦C. Effect of boron powder ultra-sonication on superconducting properties of the bulkMgB2was studied and discussed. SEM of ultra-sonicated boron showed fine particles withsharp edges (high-energy surfaces), irregular shapes and clustering of fine particles occurred forlonger ultra-sonication durations.n

Název v anglickém jazyce

Size reduction of boron particles by high-power ultrasound for optimization of bulk MgB2

Popis výsledku anglicky

Critical current density,Jc, in superconductors is strongly connected with size of defects in thematerial. Frequently, the smaller defects, the higherJc. In this work, we tried to reduce the sizeof cheap commercial boron precursor powder using high energy ultra-sonication in ethanolmedia. The resulting powder was then utilized in synthesizing bulk MgB2via sintering at775◦C. Effect of boron powder ultra-sonication on superconducting properties of the bulkMgB2was studied and discussed. SEM of ultra-sonicated boron showed fine particles withsharp edges (high-energy surfaces), irregular shapes and clustering of fine particles occurred forlonger ultra-sonication durations.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Superconductor Science and Technology

ISSN

0953-2048

e-ISSN

—

Svazek periodika

33

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000576422500001

EID výsledku v databázi Scopus

2-s2.0-85092926823