Characterization of Li–Zn–Fe crystalline phases in low temperature ceramic glaze
| Autor: | Anucha Wannagon, Samunya Sanguanpak, Sitthisak Prasanphan |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Glaze Iron oxide chemistry.chemical_element Mineralogy engineering.material Hematite Anorthite law.invention Ceramic glaze chemistry.chemical_compound Zinc ferrite chemistry law visual_art Materials Chemistry Ceramics and Composites engineering visual_art.visual_art_medium Lithium Crystallization Nuclear chemistry |
| Zdroj: | Journal of the European Ceramic Society. 33:653-660 |
| ISSN: | 0955-2219 |
| DOI: | 10.1016/j.jeurceramsoc.2012.10.027 |
| Popis: | Ceramic glaze containing Li 2 O and ZnO was prepared at a low firing temperature of 1100 °C. Addition of 0–30 wt.% iron oxide content developed brown color with a metallic sparkling effect from crystallization after soaking at 980–1080 °C. Using XRD, SEM/EDS and Raman microscopy the crystalline phases were determined as lithium zinc ferrite (Li x Zn 1−2 x Fe 2+ x O 4 where x = 0.05–0.20), hematite (α-Fe 2 O 3 ) and anorthite (CaAl 2 Si 2 O 8 ). The most preferable metallic sparkling effect was caused by the lithium zinc ferrite phase obtained from the glaze containing 10 wt.% of iron oxide. Thermal analysis by STA after heat treatment indicated that crystallization temperature of lithium zinc ferrite and the effective soaking temperature depended on the iron oxide content in the glaze. The influence of excessive iron oxide content on the crystallization behavior of lithium zinc ferrite, anorthite and hematite phases is discussed. |
| Databáze: | OpenAIRE |
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