Influence of Sintering Time with Constant Temperature on the Development of the Tricalcium Silicate Crystallinity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU149474" target="_blank" >RIV/00216305:26110/23:PU149474 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/SSP.351.67" target="_blank" >https://www.scientific.net/SSP.351.67</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/p-ti6lVW" target="_blank" >10.4028/p-ti6lVW</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Sintering Time with Constant Temperature on the Development of the Tricalcium Silicate Crystallinity

Popis výsledku v původním jazyce

The article investigates the influence of the firing time with constant temperature on the development of the tricalcium silicate crystallinity using the Scherrer's and Rietveld method. One suitable raw material mixture consisting of only pure CaCO3 and SiO2 in their specific ratio of 73.6:26.3 wt.% was selected. This raw material powder was prepared using a wet milling process in the water medium in a PULVERISETTE 6 plan mill. Based on previous research in this area, a firing temperature of 1500 °C was chosen with sintering period of 5, 10, 15 and 20 minutes in an experimental furnace with a manipulator for isothermal firing of laboratory samples developed by Dr. Chromy. This furnace requires special sample preparation, so a procedure for their preparation was designed and optimized. Thanks to this optimization, it is possible to repeatably prepare identical pellets with the exact parameters for this type of furnace. The resulting pellet weight is 73 mg at a volumetric weight of 2,285 g·cm-3. The results of the firings with different soaking times and constant temperatures showed that the sintering processes and mineral conversion occur very quickly, since after 5 minutes 30.81 wt.% of the mineral tricalcium silicate was identified and after 20 minutes the raw powder was converted to tricalcium silicate in a significant amount, i.e., 72.02 wt.%. At the same time, the crystallinity was monitored using Scherrer's method and after 20 minutes of firing, the crystallite size of tricalcium silicate reached 104.889 nm. Thus, there was a relatively rapid development of the crystallinity of Alite.

Název v anglickém jazyce

Influence of Sintering Time with Constant Temperature on the Development of the Tricalcium Silicate Crystallinity

Popis výsledku anglicky

The article investigates the influence of the firing time with constant temperature on the development of the tricalcium silicate crystallinity using the Scherrer's and Rietveld method. One suitable raw material mixture consisting of only pure CaCO3 and SiO2 in their specific ratio of 73.6:26.3 wt.% was selected. This raw material powder was prepared using a wet milling process in the water medium in a PULVERISETTE 6 plan mill. Based on previous research in this area, a firing temperature of 1500 °C was chosen with sintering period of 5, 10, 15 and 20 minutes in an experimental furnace with a manipulator for isothermal firing of laboratory samples developed by Dr. Chromy. This furnace requires special sample preparation, so a procedure for their preparation was designed and optimized. Thanks to this optimization, it is possible to repeatably prepare identical pellets with the exact parameters for this type of furnace. The resulting pellet weight is 73 mg at a volumetric weight of 2,285 g·cm-3. The results of the firings with different soaking times and constant temperatures showed that the sintering processes and mineral conversion occur very quickly, since after 5 minutes 30.81 wt.% of the mineral tricalcium silicate was identified and after 20 minutes the raw powder was converted to tricalcium silicate in a significant amount, i.e., 72.02 wt.%. At the same time, the crystallinity was monitored using Scherrer's method and after 20 minutes of firing, the crystallite size of tricalcium silicate reached 104.889 nm. Thus, there was a relatively rapid development of the crystallinity of Alite.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

Solid State Phenomena (Volume 351)

ISBN

978-3-0364-0467-7

ISSN

—

e-ISSN

—

Počet stran výsledku

7

Strana od-do

67-73

Název nakladatele

Solid State Phenomena (Volume 351)

Místo vydání

neuveden

Místo konání akce

Brno

Datum konání akce

8. 12. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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