STRUCTURAL CHARACTERISTICS OF CORDIERITES BASED ON COMMERCIAL VERMICULITES IN RELATION TO THE NATURAL AND SYNTHETIC CORDIERITES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F16%3A86098467" target="_blank" >RIV/61989100:27640/16:86098467 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.irsm.cas.cz/materialy/cs_content/2016_doi/Valaskova_CS_2016_0046.pdf" target="_blank" >https://www.irsm.cas.cz/materialy/cs_content/2016_doi/Valaskova_CS_2016_0046.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/cs.2016.0046" target="_blank" >10.13168/cs.2016.0046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

STRUCTURAL CHARACTERISTICS OF CORDIERITES BASED ON COMMERCIAL VERMICULITES IN RELATION TO THE NATURAL AND SYNTHETIC CORDIERITES

Popis výsledku v původním jazyce

The preparation and characterization of cordierites based on the commercial vermiculites obtained from the powder pre-ceramic mixtures containing talc, kaolinite and vermiculite in the composition close to the cordierite 2MgO.2Al(2)O(3).5SiO(2) has been reported since 2009. The aim of this paper was to characterize the structural properties of the nine synthetic cordierites sintered from the pre-ceramic mixtures containing commercial vermiculites at 1300 degrees C, in comparison with the orthorhombic natural and synthetic hexagonal cordierites (indialites) selected from literature. The orthorhombic natural cordierites showed the elements Fe and Mn replacing Mg in an appropriate correlation F = (Fe+Mn)/(Fe+Mn+Mg) with the unit cell parameter a, and an inverse correlation with parameter c. The unit cell parameters c calculated for the nine synthetic cordierites based on vermiculites (Ver) were in good linear relation with the F-ver = (Fe/(Fe+Mg)(oct) + (K+Na+Ca)(int)) per formula unit of the corresponding vermiculites in the pre-ceramic mixtures. The structural disorder of cordierites based on vermiculites was determined higher, according to the wide index W1/3 of (211) reflection varying in a narrow range W1/36((211)) from 0.290 degrees to 0.299 degrees 2 theta, in comparison with the W1/3((211))= 0.324 degrees 2 theta of the cordierites based on the alumina.

Název v anglickém jazyce

STRUCTURAL CHARACTERISTICS OF CORDIERITES BASED ON COMMERCIAL VERMICULITES IN RELATION TO THE NATURAL AND SYNTHETIC CORDIERITES

Popis výsledku anglicky

The preparation and characterization of cordierites based on the commercial vermiculites obtained from the powder pre-ceramic mixtures containing talc, kaolinite and vermiculite in the composition close to the cordierite 2MgO.2Al(2)O(3).5SiO(2) has been reported since 2009. The aim of this paper was to characterize the structural properties of the nine synthetic cordierites sintered from the pre-ceramic mixtures containing commercial vermiculites at 1300 degrees C, in comparison with the orthorhombic natural and synthetic hexagonal cordierites (indialites) selected from literature. The orthorhombic natural cordierites showed the elements Fe and Mn replacing Mg in an appropriate correlation F = (Fe+Mn)/(Fe+Mn+Mg) with the unit cell parameter a, and an inverse correlation with parameter c. The unit cell parameters c calculated for the nine synthetic cordierites based on vermiculites (Ver) were in good linear relation with the F-ver = (Fe/(Fe+Mg)(oct) + (K+Na+Ca)(int)) per formula unit of the corresponding vermiculites in the pre-ceramic mixtures. The structural disorder of cordierites based on vermiculites was determined higher, according to the wide index W1/3 of (211) reflection varying in a narrow range W1/36((211)) from 0.290 degrees to 0.299 degrees 2 theta, in comparison with the W1/3((211))= 0.324 degrees 2 theta of the cordierites based on the alumina.

Druh

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

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

—

Projekt

<a href="/cs/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

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

—

Svazek periodika

60

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

308-316

Kód UT WoS článku

000389170200007

EID výsledku v databázi Scopus

2-s2.0-84991756983