Hydrothermal degradation of ceramic materials on the natural raw materials base

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F10%3A00023004" target="_blank" >RIV/60461373:22310/10:00023004 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Hydrothermal degradation of ceramic materials on the natural raw materials base

Popis výsledku v původním jazyce

In this paper is dealt with ageing of ceramics, particularly with structural changes of ceramic materials on the base of natural materials after hydrothermal exposure. Identified structural changes are correlated with physical changes expressed as relative deformation. It is assumed deformation of fired clay-based materials is governed by the rehydroxylation of kaolinite, namely via inner and outer OH-groups, present in clay minerals. Samples from mixtures of clay minerals and calcite and/or dolomite, and from fine kaolinitic clay were prepared. Structural changes during hydrothermal exposures were evaluated by the means of infrared spectroscopy. Al-27 MAS nuclear magnetic resonance was also used for confirmation of change of bonds. Correlation betweenrelative deformation and amount of the specific OH bonds in rehydrated samples was confirmed.

Název v anglickém jazyce

Hydrothermal degradation of ceramic materials on the natural raw materials base

Popis výsledku anglicky

In this paper is dealt with ageing of ceramics, particularly with structural changes of ceramic materials on the base of natural materials after hydrothermal exposure. Identified structural changes are correlated with physical changes expressed as relative deformation. It is assumed deformation of fired clay-based materials is governed by the rehydroxylation of kaolinite, namely via inner and outer OH-groups, present in clay minerals. Samples from mixtures of clay minerals and calcite and/or dolomite, and from fine kaolinitic clay were prepared. Structural changes during hydrothermal exposures were evaluated by the means of infrared spectroscopy. Al-27 MAS nuclear magnetic resonance was also used for confirmation of change of bonds. Correlation betweenrelative deformation and amount of the specific OH bonds in rehydrated samples was confirmed.

Druh

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

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/2A-1TP1%2F063" target="_blank" >2A-1TP1/063: Nové skelné a keramické materiály a pokročilé postupy jejich příprav a výrob.</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

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Svazek periodika

54

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000281915900015

EID výsledku v databázi Scopus

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