Properties of BaTiO3 confined in nanoporous Vycor and artificial opal silica

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F10%3A00350378" target="_blank" >RIV/68378271:_____/10:00350378 - isvavai.cz</a>

Alternative codes found

RIV/61388980:_____/10:00350378

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Properties of BaTiO3 confined in nanoporous Vycor and artificial opal silica

Original language description

Using the sol-gel technique, BaTiO3 was embedded into nanoporous Vycor and artificial vitreous opal silica for the first time. About 50 vol% of the pores was filled. In case of the Vycor glass only amorphous phase was revealed by XRD, IR reflectivity andRaman spectra. The RT infrared and Raman spectra clearly show characteristic vibrational modes of the ferroelectrically distorted TiO6 octahedra without any long-range order. In case of the opal matrix, crystallization of the ferroelectric BaTiO3 appeared in coexistence with the amorphous phase, but the penetration depth of the crystalline BaTiO3 was limited. From the apparent temperature independence of the effective wide-frequency dielectric response, we can deduce that no macroscopic percolation ofthe crystalline BaTiO3 has appeared in our opal matrix. Nevertheless, Raman spectra bring evidence of a diffuse ferroelectric phase transition in the opal-BaTiO3 composite.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/KAN301370701" target="_blank" >KAN301370701: Nanostructured Macroscopic Systems - Technology and Characterisation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Processing and Application of Ceramics

ISSN

1820-6131

e-ISSN

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Volume of the periodical

4

Issue of the periodical within the volume

3

Country of publishing house

CS - SERBIA AND MONTENEGRO

Number of pages

9

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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