Sammanfattning
Controlled share of wollastonite and dolomite in the recipe was decisive for achieving raw glazes with a matte surface in a fast-firing process. The surface characteristics were studied for 25 experimental glazes containing 9–39 wt% wollastonite and 0–16 wt% dolomite. The glaze suspensions were applied on raw tiles and fired to 1215 °C in an industrial kiln. The chemical durability of the tiles was measured according to the standard ISO 10545-13. Further, the impact of exposure time on surface degradation was measured for 0.1 and 3 vol% HCl-solutions. The changes in the phase composition were studied with SEM/EDXA and XRD. The surface consisted of wollastonite and diopside, some residual quartz and corundum as well as amorphous phases. Wollastonite crystals severely decreased the durability while diopside crystals provided a durable matte surface. The results give guidelines for manufacturing matte and chemically durable fast-fired raw glazes.
Originalspråk | Engelska |
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Sidor (från-till) | 3327-3337 |
Antal sidor | 11 |
Tidskrift | Journal of the European Ceramic Society |
Volym | 40 |
Nummer | 8 |
DOI | |
Status | Publicerad - 18 mars 2020 |
MoE-publikationstyp | A1 Tidskriftsartikel-refererad |