Positron annihilation spectroscopy study of defects in hydrogen loaded Zr-1Nb alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10404021" target="_blank" >RIV/00216208:11320/19:10404021 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=YTlk1GN8VU" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=YTlk1GN8VU</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jallcom.2019.05.186" target="_blank" >10.1016/j.jallcom.2019.05.186</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Positron annihilation spectroscopy study of defects in hydrogen loaded Zr-1Nb alloy

Popis výsledku v původním jazyce

The purpose of this work is to implement the positron lifetime and Doppler broadening techniques for the study of hydrogen-induced defects in Zr-1wt% Nb (hereinafter Zr-1Nb) alloy. It was shown that spark cutting is an appropriate instrument to obtain a pair of Zr-1Nb samples with the same hydrogen content for the &quot;sandwich&quot; geometry and does not introduce open-volume defects in them during the cut. The ab initio calculations were implemented to evaluate the positron annihilation characteristics for expanded crystal lattice, Zr with absorbed hydrogen, Zr-vacancy and Zr-vacancy-hydrogen complexes. The type of defects created in Zr-1Nb alloy loaded with hydrogen from the gas phase up to various hydrogen concentrations was studied. The main types of defects induced by hydrogen loading are vacancy-hydrogen complexes and dislocations. The processes of crystal lattice expansion and hydrogen dissolution in the lattice were studied. (C) 2019 Published by Elsevier B.V.

Název v anglickém jazyce

Positron annihilation spectroscopy study of defects in hydrogen loaded Zr-1Nb alloy

Popis výsledku anglicky

The purpose of this work is to implement the positron lifetime and Doppler broadening techniques for the study of hydrogen-induced defects in Zr-1wt% Nb (hereinafter Zr-1Nb) alloy. It was shown that spark cutting is an appropriate instrument to obtain a pair of Zr-1Nb samples with the same hydrogen content for the &quot;sandwich&quot; geometry and does not introduce open-volume defects in them during the cut. The ab initio calculations were implemented to evaluate the positron annihilation characteristics for expanded crystal lattice, Zr with absorbed hydrogen, Zr-vacancy and Zr-vacancy-hydrogen complexes. The type of defects created in Zr-1Nb alloy loaded with hydrogen from the gas phase up to various hydrogen concentrations was studied. The main types of defects induced by hydrogen loading are vacancy-hydrogen complexes and dislocations. The processes of crystal lattice expansion and hydrogen dissolution in the lattice were studied. (C) 2019 Published by Elsevier B.V.

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

<a href="/cs/project/TK01030153" target="_blank" >TK01030153: Moderní kovové materiály pro reaktory druhé, třetí a čtvrté generace.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Alloys and Compounds

ISSN

0925-8388

e-ISSN

—

Svazek periodika

798

Číslo periodika v rámci svazku

May 2019

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

685-694

Kód UT WoS článku

000471631300079

EID výsledku v databázi Scopus

2-s2.0-85066415423