Diffusion Processes in the Sintering of Zirconia-Based Nanomaterials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10190423" target="_blank" >RIV/00216208:11320/14:10190423 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scientific.net/JNanoR.26.25" target="_blank" >http://www.scientific.net/JNanoR.26.25</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/JNanoR.26.25" target="_blank" >10.4028/www.scientific.net/JNanoR.26.25</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Diffusion Processes in the Sintering of Zirconia-Based Nanomaterials

Popis výsledku v původním jazyce

In the present work, zirconia-based nanomaterials with various stabilizers were prepared by a co-precipitation technique. Defects in these nanomaterials were characterized by positron annihilation spectroscopy which is a non-destructive technique with ahigh sensitivity to open volume defects and atomic scale resolution. It was found that zirconia-based nanomaterials contain vacancies and also nano-scale and meso-scale pores. Diffusion processes which occur in the nanomaterials sintered at elevated temperatures were investigated by depth sensitive positron annihilation studies on a variable energy slow positron beam. It was found that sintering causes intensive grain growth and residual porosity is removed from samples by diffusion to the surface.

Název v anglickém jazyce

Diffusion Processes in the Sintering of Zirconia-Based Nanomaterials

Popis výsledku anglicky

In the present work, zirconia-based nanomaterials with various stabilizers were prepared by a co-precipitation technique. Defects in these nanomaterials were characterized by positron annihilation spectroscopy which is a non-destructive technique with ahigh sensitivity to open volume defects and atomic scale resolution. It was found that zirconia-based nanomaterials contain vacancies and also nano-scale and meso-scale pores. Diffusion processes which occur in the nanomaterials sintered at elevated temperatures were investigated by depth sensitive positron annihilation studies on a variable energy slow positron beam. It was found that sintering causes intensive grain growth and residual porosity is removed from samples by diffusion to the surface.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F11%2F1396" target="_blank" >GAP108/11/1396: Vliv substitučních příměsí a hranic zrn na vlastnosti nanokrystalických materiálů na bázi oxidu zirkonu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Nano Research

ISSN

1662-5250

e-ISSN

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Svazek periodika

26

Číslo periodika v rámci svazku

6 Dec 2013

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

7

Strana od-do

25-31

Kód UT WoS článku

000330816600005

EID výsledku v databázi Scopus

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