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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

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

Article name in the collection

Solid State Phenomena (Volume 351)

ISBN

978-3-0364-0467-7

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

67-73

Publisher name

Solid State Phenomena (Volume 351)

Place of publication

neuveden

Event location

Brno

Event date

Dec 8, 2022

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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