Characterization of Li-Zn-Fe crystalline phases in low temperature ceramic glaze

被引:8
|
作者
Wannagon, Anucha [1 ]
Prasanphan, Sitthisak [1 ]
Sanguanpak, Samunya [1 ]
机构
[1] Natl Met & Mat Technol Ctr, Klongluang 12120, Pathumthani, Thailand
关键词
Crystalline glaze; Low firing temperature; Lithium zinc ferrite; Anorthite; Hematite; RAMAN-SPECTROSCOPY; GLASS-CERAMICS; BEHAVIOR; ANORTHITE; ZNFE2O4; MGO;
D O I
10.1016/j.jeurceramsoc.2012.10.027
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Ceramic glaze containing Li2O and ZnO was prepared at a low firing temperature of 1100 degrees C. Addition of 0-30 wt.% iron oxide content developed brown color with a metallic sparkling effect from crystallization after soaking at 980-1080 degrees C. Using XRD, SEM/EDS and Raman microscopy the crystalline phases were determined as lithium zinc ferrite (LixZn1-xFe2+xO4 where x = 0.05-0.20), hematite (alpha-Fe2O3) and anorthite (CaAl2Si2O8). 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. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:653 / 660
页数:8
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