Complex pulse magnetization process and mechanical properties of spark plasma sintered bulk MgB2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00546000" target="_blank" >RIV/68378271:_____/21:00546000 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0322674" target="_blank" >http://hdl.handle.net/11104/0322674</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mseb.2021.115390" target="_blank" >10.1016/j.mseb.2021.115390</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Complex pulse magnetization process and mechanical properties of spark plasma sintered bulk MgB2

Popis výsledku v původním jazyce

High-density MgB2 bulks with superior mechanical and superconducting properties were fabricated using spark plasma sintering (SPS). The sharp superconducting transition at 37.5 K proved high quality of the superconductors. Critical current density significantly exceeded that of conventionally sintered bulks. Flux pinning diagrams indicated dominance of grain boundary pinning, with peak position at 0.2. SPS bulks showed improved mechanical properties with 8-times higher bending strength compared to dense hot isostatic pressed bulks. Trapped field was measured at 14 K and 20 K, 1 mm above the bulk’s surface, with applied pulse field up to 2 T. A local overheating together with a complex trapped field formation in the MgB2 bulks during pulse-field magnetization were studied to elucidate limitations of Pulse Field Magnetization.

Název v anglickém jazyce

Complex pulse magnetization process and mechanical properties of spark plasma sintered bulk MgB2

Popis výsledku anglicky

High-density MgB2 bulks with superior mechanical and superconducting properties were fabricated using spark plasma sintering (SPS). The sharp superconducting transition at 37.5 K proved high quality of the superconductors. Critical current density significantly exceeded that of conventionally sintered bulks. Flux pinning diagrams indicated dominance of grain boundary pinning, with peak position at 0.2. SPS bulks showed improved mechanical properties with 8-times higher bending strength compared to dense hot isostatic pressed bulks. Trapped field was measured at 14 K and 20 K, 1 mm above the bulk’s surface, with applied pulse field up to 2 T. A local overheating together with a complex trapped field formation in the MgB2 bulks during pulse-field magnetization were studied to elucidate limitations of Pulse Field Magnetization.

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

2021

Kód důvěrnosti údajů

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

Název periodika

Materials Science and Engineering B-Advanced Functional Solid-State Materials

ISSN

0921-5107

e-ISSN

1873-4944

Svazek periodika

273

Číslo periodika v rámci svazku

Nov

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

115390

Kód UT WoS článku

000702850700006

EID výsledku v databázi Scopus

2-s2.0-85115222781