Exceptional structural and functional stability of Zr-doped REBaCuO tapes with respect to neutron irradiation and overheating

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00573334" target="_blank" >RIV/61389021:_____/23:00573334 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/23:00573051 RIV/26722445:_____/23:N0000036

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1361-6668/acd229" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6668/acd229</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6668/acd229" target="_blank" >10.1088/1361-6668/acd229</a>

Result language

angličtina

Original language name

Exceptional structural and functional stability of Zr-doped REBaCuO tapes with respect to neutron irradiation and overheating

Original language description

The impact of neutron irradiation on the properties of second-generation REBaCuO tapes was studied. The main aim of the present study was to identify the fast neutrons irradiation fluence threshold, φ th, at which the high-field critical current at low temperatures, I c (10 K, 8 T), starts degrading. Following up on our previous publication for low irradiation fluences, two new irradiation steps were added. Up to the last but one irradiation step, the T c in all samples followed a linear dependence on the fast neutrons irradiation fluence, T c(φ) ≈ T c(0) − τφ (τ being a numerical constant in units of K/1022 m−2 and φ in 1022 m−2). In parallel, I c (10 K, 8 T) continuously grew with φ up to the threshold fluence, φ th ≈ 3× to 4.3 × 1022 m−2. The last gradual irradiation by φ≈ 1.83 × 1022 m−2 brought a severe degradation both in T c and I c (10 K, 8 T) in most samples, irrespective of their irradiation history. This effect was attributed to radiation overheating. Annealing of pristine tapes in dilute Ar confirmed this scenario. Two of the SuperPower tapes, doped by Zr, appeared to be exceptionally stable against both types of overheating. The tape doped with 7.5% Zr, T c(φ) followed the linear dependence up to the highest cumulative fluence φ =6.16 × 1022 m−2, while the I c (10 K, 8 T) drop was several orders of magnitude lower than in the samples without Zr. TEM study found that the Zr-doped tapes survived the overheating during the last irradiation step in a crystalline form, while all other samples were amorphized.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Superconductor Science and Technology

ISSN

0953-2048

e-ISSN

1361-6668

Volume of the periodical

36

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

075005

UT code for WoS article

000995213900001

EID of the result in the Scopus database

2-s2.0-85160518880