The effect of wollastonite on sintering of anorthite ceramic
body based on illite-smectite clay and kaolin

J 2025

The effect of wollastonite on sintering of anorthite ceramic body based on illite-smectite clay and kaolin

SOKOLAR, Radomir; Martin NGUYEN; Dalibor VŠIANSKÝ; Oldrich PAVELKA; Anton TRNIK et. al.

Základní údaje

Originální název

The effect of wollastonite on sintering of anorthite ceramic body based on illite-smectite clay and kaolin

Autoři

SOKOLAR, Radomir; Martin NGUYEN; Dalibor VŠIANSKÝ (203 Česká republika, domácí); Oldrich PAVELKA a Anton TRNIK

Vydání

Applied Clay Science, Elsevier Ltd, 2025, 0169-1317

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

20504 Ceramics

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 5.800 v roce 2024

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1016/j.clay.2025.107774

UT WoS

001441880100001

EID Scopus

2-s2.0-85219217946

Klíčová slova anglicky

Wollastonite; Anorthite ceramics; Mineralogical composition; Firing; Sintering temperature

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 15. 4. 2025 10:37, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The effect of different character of plastic raw materials based on different clay minerals (kaolin vs. I/S clay based on interstratified illite/smectite clay minerals) and different source of wollastonite (bludovite rock vs. natural wollastonite) on the sintering process of anorthite porcelain body is studied. The sintering temperature according to vacuum water absorption is defined for samples containing 40 % of wollastonite raw material in the range of firing temperatures from 850°C to 1200°C. The mineralogical composition of fired samples was observed from the firing temperature of 850 °C up to the sintering temperature. The sintering temperature of all studied samples is lower than 1200 °C. The lowest value is obtained by the combination of illite/smectite clay and natural wollastonite (1115 °C). The type of used plastic raw material also significantly affected the mechanism of anorthite formation during firing. The highest content of anorthite (over 90 %) in the crystalline phase of the sintered body is observed in kaolin-based samples. Primary mullite is identified in small amounts and transiently only in kaolin-based samples after a firing at 950°C and 1050°C, and then participates in the formation of anorthite. Diopside was detected in sintered samples based on bludovite rock as a rest from wollastonite raw material.

Citovat

SOKOLAR, Radomir; Martin NGUYEN; Dalibor VŠIANSKÝ; Oldrich PAVELKA a Anton TRNIK. The effect of wollastonite on sintering of anorthite ceramic body based on illite-smectite clay and kaolin. Applied Clay Science. Elsevier Ltd, 2025, roč. 270, June, s. 1-8. ISSN 0169-1317. Dostupné z: https://doi.org/10.1016/j.clay.2025.107774.

@article{2491225,
   author = {Sokolar, Radomir and Nguyen, Martin and Všianský, Dalibor and Pavelka, Oldrich and Trnik, Anton},
   article_number = {June},
   doi = {https://doi.org/10.1016/j.clay.2025.107774},
   keywords = {Wollastonite; Anorthite ceramics; Mineralogical composition; Firing; Sintering temperature},
   language = {eng},
   issn = {0169-1317},
   journal = {Applied Clay Science},
   title = {The effect of wollastonite on sintering of anorthite ceramic body based on illite-smectite clay and kaolin},
   url = {https://doi.org/10.1016/j.clay.2025.107774},
   volume = {270},
   year = {2025}
}

TY  - JOUR
ID  - 2491225
AU  - Sokolar, Radomir - Nguyen, Martin - Všianský, Dalibor - Pavelka, Oldrich - Trnik, Anton
PY  - 2025
TI  - The effect of wollastonite on sintering of anorthite ceramic body based on illite-smectite clay and kaolin
JF  - Applied Clay Science
VL  - 270
IS  - June
SP  - 1-8
EP  - 1-8
PB  - Elsevier Ltd
SN  - 01691317
KW  - Wollastonite
KW  - Anorthite ceramics
KW  - Mineralogical composition
KW  - Firing
KW  - Sintering temperature
UR  - https://doi.org/10.1016/j.clay.2025.107774
N2  - The effect of different character of plastic raw materials based on different clay minerals (kaolin vs. I/S clay based on interstratified illite/smectite clay minerals) and different source of wollastonite (bludovite rock vs. natural wollastonite) on the sintering process of anorthite porcelain body is studied. The sintering temperature according to vacuum water absorption is defined for samples containing 40 % of wollastonite raw material in the range of firing temperatures from 850°C to 1200°C. The mineralogical composition of fired samples was observed from the firing temperature of 850 °C up to the sintering temperature. The sintering temperature of all studied samples is lower than 1200 °C. The lowest value is obtained by the combination of illite/smectite clay and natural wollastonite (1115 °C). The type of used plastic raw material also significantly affected the mechanism of anorthite formation during firing. The highest content of anorthite (over 90 %) in the crystalline phase of the sintered body is observed in kaolin-based samples. Primary mullite is identified in small amounts and transiently only in kaolin-based samples after a firing at 950°C and 1050°C, and then participates in the formation of anorthite. Diopside was detected in sintered samples based on bludovite rock as a rest from wollastonite raw material.
ER  -

SOKOLAR, Radomir; Martin NGUYEN; Dalibor VŠIANSKÝ; Oldrich PAVELKA a Anton TRNIK. The effect of wollastonite on sintering of anorthite ceramic body based on illite-smectite clay and kaolin. \textit{Applied Clay Science}. Elsevier Ltd, 2025, roč.~270, June, s.~1-8. ISSN~0169-1317. Dostupné z: https://doi.org/10.1016/j.clay.2025.107774.

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