Internal structure of magnetic porous glasses and the related ferroelectric nanocomposites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00474508" target="_blank" >RIV/61389005:_____/17:00474508 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1134/S1063783417020196" target="_blank" >http://dx.doi.org/10.1134/S1063783417020196</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1134/S1063783417020196" target="_blank" >10.1134/S1063783417020196</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Internal structure of magnetic porous glasses and the related ferroelectric nanocomposites

Popis výsledku v původním jazyce

The internal structure of empty porous micro- and macroporous magnetic glasses and the related nanocomposites containing NaNO2 and KNO3 embedded in pores of the glasses has been investigated using small-angle neutron scattering. The characteristic sizes of magnetite particles in matrices and the sizes of nanoparticles embedded in ferroelectric materials have been estimated. It has been shown that, for microporous glasses in the momentum transfer range 0.35 nm(-1) < Q < 1.7 nm(-1), the dependence of the small-angle neutron scattering intensity on the momentum transfer has two characteristic regions: the first region corresponds well to the Porod's law Q (-4) (smooth surface), and the second region is consistent with the mass fractal reflecting the internal structure of channels in the microporous glass. For macroporous glasses over the entire momentum transfer range 0.35 nm(-1) < Q < 1.7 nm(-1), the scattering intensity is described by the dependence I(Q) similar to Q (-n) with alpha = 3.96 +/- 0.02, i.e., in these glasses, there is a system of channels with sufficiently smooth surfaces.

Název v anglickém jazyce

Internal structure of magnetic porous glasses and the related ferroelectric nanocomposites

Popis výsledku anglicky

The internal structure of empty porous micro- and macroporous magnetic glasses and the related nanocomposites containing NaNO2 and KNO3 embedded in pores of the glasses has been investigated using small-angle neutron scattering. The characteristic sizes of magnetite particles in matrices and the sizes of nanoparticles embedded in ferroelectric materials have been estimated. It has been shown that, for microporous glasses in the momentum transfer range 0.35 nm(-1) < Q < 1.7 nm(-1), the dependence of the small-angle neutron scattering intensity on the momentum transfer has two characteristic regions: the first region corresponds well to the Porod's law Q (-4) (smooth surface), and the second region is consistent with the mass fractal reflecting the internal structure of channels in the microporous glass. For macroporous glasses over the entire momentum transfer range 0.35 nm(-1) < Q < 1.7 nm(-1), the scattering intensity is described by the dependence I(Q) similar to Q (-n) with alpha = 3.96 +/- 0.02, i.e., in these glasses, there is a system of channels with sufficiently smooth surfaces.

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/LM2015056" target="_blank" >LM2015056: Centrum urychlovačů a jaderných analytických metod</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Physics of the Solid State

ISSN

1063-7834

e-ISSN

—

Svazek periodika

59

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

378-387

Kód UT WoS článku

000394986300029

EID výsledku v databázi Scopus

2-s2.0-85013388426