Publication detail

Development of Crystallinity of Triclinic Polymorph of Tricalcium Silicate

RAVASZOVÁ, S. DVOŘÁK, K.

Original Title

Development of Crystallinity of Triclinic Polymorph of Tricalcium Silicate

Type

journal article in Web of Science

Language

English

Original Abstract

Tricalcium silicate phase is one of the main components of modern Portland cements. One of the major industrial challenges in the field of cement production is mapping the influence of individual clinker minerals and their polymorphs on the properties of industrially produced clinkers. The primary goal of this work is to improve the fundamental knowledge of understanding the process of alite formation and development from a crystallographic point of view. This study focuses on the observation of the crystallization process of triclinic alite during the firing process, which to date has not been thoroughly described. The effects of a wide range of temperatures and sintering periods on crystallinity were assessed on samples fired in platinum crucibles in a laboratory furnace. X-ray analysis—together with calculation of crystallinity using Scherrer’s equation—was used for observing the crystallite size changes of T1 alite polymorph. According to the acquired results, among the most technologically and economically advantageous regimes of production of a high-quality triclinic alite is the temperature of 1450 °C and sintering time of two hours. The most significant changes in the crystallite size occurred within the first hour of sintering for the whole investigated temperature range.

Keywords

triclinic tricalcium silicate; alite; crystallite size; Scherrer equation; growth rate

Authors

RAVASZOVÁ, S.; DVOŘÁK, K.

Released

24. 8. 2020

Publisher

MDPI

Location

Švýcarsko

ISBN

1996-1944

Periodical

Materials

Year of study

13

Number

17

State

Swiss Confederation

Pages from

10

Pages to

21

Pages count

11

URL

https://www.mdpi.com/1996-1944/13/17/3734

Full text in the Digital Library

http://hdl.handle.net/11012/194869

BibTex

@article{BUT164770,
  author="Simona {Ravaszová} and Karel {Dvořák}",
  title="Development of Crystallinity of Triclinic Polymorph of Tricalcium Silicate",
  journal="Materials",
  year="2020",
  volume="13",
  number="17",
  pages="10--21",
  doi="10.3390/ma13173734",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/13/17/3734"
}